Mercurial > hgrepos > FreeBSD > ports > sysutils > local-bsdtools
annotate sbin/fjail @ 347:673505e96cea
Implement a "fjail freebsd-update": update "normal" jails and other directories where an OS is mounted
| author | Franz Glasner <hg@dom66.de> |
|---|---|
| date | Mon, 05 Dec 2022 16:01:54 +0100 |
| parents | 3b2935985c73 |
| children | c559074302e0 |
| rev | line source |
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1 #!/bin/sh |
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2 # -*- indent-tabs-mode: nil; -*- |
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3 : 'A very minimal BSD Jail management tool. |
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4 |
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5 :Author: Franz Glasner |
| 193 | 6 :Copyright: (c) 2019-2022 Franz Glasner. |
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7 All rights reserved. |
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8 :License: BSD 3-Clause "New" or "Revised" License. |
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9 See LICENSE for details. |
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10 If you cannot find LICENSE see |
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11 <https://opensource.org/licenses/BSD-3-Clause> |
| 93 | 12 :ID: @(#)@@PKGORIGIN@@ $HGid$ |
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13 |
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14 ' |
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15 |
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16 set -eu |
| 73 | 17 |
| 18 VERSION="@@VERSION@@" | |
| 19 | |
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20 USAGE=' |
| 75 | 21 USAGE: fjail [ OPTIONS ] COMMAND [ COMMAND OPTIONS ] [ ARG ... ] |
| 22 | |
| 23 OPTIONS: | |
| 24 | |
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25 -V Print the program name and version number to stdout and exit |
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26 |
| 75 | 27 -h Print this help message to stdout and exit |
| 28 | |
| 29 COMMANDS: | |
| 30 | |
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31 datasets [OPTIONS] PARENT CHILD |
| 75 | 32 |
| 33 Create ZFS datasets to be used within a jail | |
| 34 | |
| 35 PARENT must exist already and CHILD must not exist. | |
| 36 | |
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37 -A Set "canmount=noauto" for datasets |
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38 -o Do not create var/empty as read-only dataset but with normal settings |
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39 -s Also create a dataset for freebsd-update data files |
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40 -t Create a more tiny set of datasets |
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41 -T Create only an extra tiny set of datasets |
| 75 | 42 -u Do not automatically mount newly created datasets |
| 43 | |
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44 mount |
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45 |
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46 See sibling tool `fzfs'"'"' |
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47 |
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48 umount |
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49 |
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50 See sibling tool `fzfs'"'"' |
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51 |
| 75 | 52 privs MOUNTPOINT |
| 53 | |
| 54 Adjust some Unix privileges to mounted jail datasets | |
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55 |
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56 populate MOUNTPOINT BASETXZ |
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57 |
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58 Populate the jail directory in MOUNTPOINT with the base system in BASETXZ |
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59 |
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60 configure [OPTIONS] MOUNTPOINT |
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61 |
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62 Configure some basic parts of the system at MOUNTPOINT: |
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63 disable root password, syslog and other basic configuration settings |
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64 |
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65 Also handle thin jails by checking whether "etc" is a symlink to |
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66 "skeleton/etc". |
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67 |
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68 -d Temporarily mount a devfs filesystem to MOUNTPOINT/dev |
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69 |
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70 hostid |
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71 |
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72 Print proposals for a hostuuid and hostid |
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73 |
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74 copy [OPTIONS] SOURCE-DATASET DEST-DATASET |
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75 |
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76 Copy a tree of ZFS datasets with "zfs send -R" and "zfs receive". |
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77 Note that the destination dataset must not exist already. |
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78 |
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79 -r Copy the datasets with the -Lec options (aka "raw") |
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80 -u Do not automatically mount received datasets |
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81 |
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82 freebsd-update [OPTIONS] DIRECTORY OPERATIONS... |
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83 |
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84 -c CURRENTLY-RUNNING Assume the systen given in CURRENTLY-RUNNING is |
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85 installed/running at given DIRECTORY |
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86 |
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87 ENVIRONMENT: |
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88 |
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89 All environment variables that affect "zfs" are effective also. |
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90 |
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91 DESCRIPTION: |
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92 |
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93 All commands with the exception of "populate" require ZFS as |
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94 filesystem. |
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95 ' |
| 75 | 96 |
| 97 | |
| 73 | 98 # Reset to standard umask |
| 99 umask 0022 | |
| 100 | |
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101 |
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102 _get_dataset_for_mountpoint() { |
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103 : 'Use `mount -t zfs -p` to determine the ZFS dataset for a given mountpoint. |
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104 |
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105 ' |
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106 local _mountpoint |
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107 local _ds _mount _rest |
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108 |
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109 _mountpoint="$1" |
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110 |
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111 mount -t zfs -p \ |
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112 | { |
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113 while IFS=' '$'\t' read -r _ds _mount _rest ; do |
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114 if [ "$_mount" = "$_mountpoint" ]; then |
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115 echo "${_ds}" |
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116 return 0 |
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117 fi |
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118 done |
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119 return 1 |
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120 } |
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121 } |
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122 |
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123 |
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124 _get_dataset_for_varempty() { |
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125 : 'Allow special handling for <mountpoint>/var/empty which may be |
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126 mounted read-only. |
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127 |
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128 ' |
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129 local _mountpoint |
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130 local _ve_mount |
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131 |
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132 _mountpoint="$1" |
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133 |
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134 if [ "$_mountpoint" = '/' ]; then |
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135 _ve_mount='/var/empty' |
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136 else |
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137 _ve_mount="${_mountpoint}/var/empty" |
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138 fi |
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139 |
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140 _get_dataset_for_mountpoint "${_ve_mount}" |
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141 } |
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142 |
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143 |
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346
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144 #: |
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145 #: Check whether a FreeBSD version at a given location matches the userland |
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146 #: version of the host where the current process run. |
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147 #: |
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148 #: Args: |
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149 #: $1: the location where to check for |
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150 #: $2: an optional reference FreeBSD version to compare to (default is the |
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151 #: version of the host) |
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152 #: |
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153 #: Returns: |
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154 #: 0 if the userland versions match, 1 otherwise |
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155 #: |
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156 #: Exit: |
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157 #: 1 on fatal errors (e.g. /bin/freebsd-version not found or errors) |
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158 #: |
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159 _has_same_userland_version() { |
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160 local directory ref_version |
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161 |
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162 local _directory_version |
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163 |
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164 directory="$1" |
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165 ref_version="${2:-}" |
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166 |
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167 if [ -z "${ref_version}" ]; then |
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168 ref_version=$(/bin/freebsd-version -u) || exit 1 |
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169 fi |
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170 _directory_version=$(chroot "${directory}" /bin/freebsd-version -u) || exit 1 |
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171 if [ "${ref_version%%-*}" = "${_directory_version%%-*}" ]; then |
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172 return 0 |
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173 fi |
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174 return 1 |
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175 } |
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176 |
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177 |
| 73 | 178 # |
| 179 # "datasets" -- create the ZFS dataset tree | |
| 180 # | |
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181 # command_datasets [ -u ] parent-dataset child-dataset |
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182 # |
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183 # -u do not automatically mount newly created datasets |
| 73 | 184 # |
| 185 command_datasets() { | |
| 186 # parent ZFS dataset -- child ZFS dataset name | |
| 187 local _pds _cds | |
| 188 # and its mount point | |
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189 local _pmp _get |
| 73 | 190 # full name of the dataset |
| 191 local _ds | |
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192 # dynamic ZFS options -- create cache for freebsd-update -- use a more tiny layout |
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193 local _zfsopts _fbsdupdate _tiny _zfsnoauto _varempty_ro |
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194 |
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195 _zfsopts="" |
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177
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196 _fbsdupdate="" |
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197 _tiny="no" |
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198 _zfsnoauto="" |
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199 _varempty_ro="-o readonly=on" |
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200 while getopts "oustAT" _opt ; do |
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201 case ${_opt} in |
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202 A) |
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203 # |
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204 # set canmount=noauto where otherwise canmount=on would have been set |
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205 # or inherited |
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206 # |
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207 _zfsnoauto="-o canmount=noauto" |
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208 ;; |
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209 o) |
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210 # Clear out the default setting of creating var/empty as read-only dataset |
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211 _varempty_ro="" |
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212 ;; |
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213 t) |
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214 # use a more tiny layout |
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215 _tiny="yes" |
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216 ;; |
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217 T) # extra tiny layout |
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218 _tiny="extra" |
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219 ;; |
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220 u) |
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221 # do not mount newly created datasets |
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222 _zfsopts="${_zfsopts} -u" |
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223 ;; |
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224 s) |
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225 # create also a dataset for freebsd-update data |
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226 _fbsdupdate="yes" |
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179
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227 ;; |
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228 \?|:) |
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229 return 2; |
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230 ;; |
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231 esac |
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232 done |
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233 shift $((OPTIND-1)) |
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234 OPTIND=1 |
| 73 | 235 |
| 236 _pds="$1" | |
| 237 if [ -z "${_pds}" ]; then | |
| 238 echo "ERROR: no parent dataset given" >&2 | |
| 239 return 2 | |
| 240 fi | |
|
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241 _pmp=$(zfs list -H -o mountpoint -t filesystem "${_pds}" 2>/dev/null) || { echo "ERROR: dataset \`${_pds}' does not exist" >&2; return 1; } |
| 73 | 242 case "${_pmp}" in |
| 243 none) | |
| 244 echo "ERROR: dataset \`${_pds}' has no mountpoint" >&2 | |
| 245 return 1 | |
| 246 ;; | |
| 247 legacy) | |
| 248 echo "ERROR: dataset \`${_pds}' has a \`${_mp}' mountpoint" >&2 | |
| 249 return 1 | |
| 250 ;; | |
| 251 *) | |
| 252 # VOID | |
| 253 ;; | |
| 254 esac | |
| 255 _cds="$2" | |
| 256 if [ -z "${_cds}" ]; then | |
| 257 echo "ERROR: no child dataset given" >&2 | |
| 258 return 2 | |
| 259 fi | |
| 260 _ds="${_pds}/${_cds}" | |
| 261 echo "Resulting new root dataset is \`${_ds}' at mountpoint \`${_pmp}/${_cds}'" | |
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262 if zfs list -H -o mountpoint -t filesystem "${_ds}" >/dev/null 2>/dev/null; then |
| 73 | 263 echo "ERROR: dataset \`${_ds}' does already exist" >&2 |
| 264 return 1 | |
| 265 fi | |
|
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266 |
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267 # |
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268 # NOTE: For BEs these directory will be *excluded* from the BE |
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269 # |
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270 # /tmp |
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271 # /usr/home |
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272 # /usr/ports |
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273 # /usr/src |
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274 # /var/audit |
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275 # /var/crash |
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276 # /var/log |
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277 # /var/mail |
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278 # /var/tmp |
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279 # |
|
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280 zfs create ${_zfsopts} ${_zfsnoauto} -o atime=off "${_ds}" |
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281 zfs create ${_zfsopts} ${_zfsnoauto} -o sync=disabled -o setuid=off "${_ds}/tmp" |
|
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282 if [ "${_tiny}" != "extra" ]; then |
|
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283 if [ "${_tiny}" = "yes" ]; then |
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284 zfs create ${_zfsopts} -o canmount=off "${_ds}/usr" |
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285 else |
|
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286 zfs create ${_zfsopts} ${_zfsnoauto} "${_ds}/usr" |
|
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287 fi |
|
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288 zfs create ${_zfsopts} ${_zfsnoauto} -o setuid=off "${_ds}/usr/home" |
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289 zfs create ${_zfsopts} ${_zfsnoauto} "${_ds}/usr/local" |
|
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290 fi |
|
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291 if [ \( "${_tiny}" = "yes" \) -o \( "${_tiny}" = "extra" \) ]; then |
|
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292 zfs create ${_zfsopts} -o canmount=off "${_ds}/var" |
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293 else |
|
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294 zfs create ${_zfsopts} ${_zfsnoauto} "${_ds}/var" |
|
181
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295 fi |
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296 if [ "${_tiny}" != "extra" ]; then |
|
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297 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off "${_ds}/var/audit" |
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298 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off "${_ds}/var/cache" |
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299 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off -o primarycache=metadata -o compression=off "${_ds}/var/cache/pkg" |
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300 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off -o compression=off "${_ds}/var/crash" |
|
181
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301 fi |
|
177
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302 if [ "$_fbsdupdate" = "yes" ]; then |
|
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303 if [ \( "${_tiny}" = "yes" \) -o \( "${_tiny}" = "extra" \) ]; then |
|
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304 zfs create ${_zfsopts} -o canmount=off -o exec=off -o setuid=off "${_ds}/var/db" |
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305 else |
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306 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off "${_ds}/var/db" |
|
181
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307 fi |
|
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308 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off -o primarycache=metadata -o compression=off "${_ds}/var/db/freebsd-update" |
|
177
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309 fi |
|
211
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310 zfs create ${_zfsopts} ${_zfsnoauto} ${_varempty_ro} -o exec=off -o setuid=off "${_ds}/var/empty" |
|
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311 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off -o primarycache=metadata "${_ds}/var/log" |
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312 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off -o atime=on "${_ds}/var/mail" |
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313 zfs create ${_zfsopts} ${_zfsnoauto} -o sync=disabled -o exec=off -o setuid=off -o compression=off -o primarycache=all "${_ds}/var/run" |
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314 zfs create ${_zfsopts} ${_zfsnoauto} -o sync=disabled -o setuid=off "${_ds}/var/tmp" |
| 73 | 315 } |
| 316 | |
|
74
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317 |
| 73 | 318 # |
|
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319 # "populate" -- populate the datasets with content from a FreeBSD base.txz |
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320 # |
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321 # command_populate mountpoint basetxz |
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322 # |
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323 command_populate() { |
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324 # MOUNTPOINT -- base.txz |
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325 local _mp _basetxz |
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326 |
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327 _mp="$1" |
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328 _basetxz="$2" |
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329 |
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330 if [ -z "${_mp}" ]; then |
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331 echo "ERROR: no mountpoint given" >&2 |
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332 return 2 |
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333 fi |
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334 if [ -z "${_basetxz}" ]; then |
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335 echo "ERROR: no base.txz given" >&2 |
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336 return 2 |
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337 fi |
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338 if [ ! -d "${_mp}" ]; then |
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339 echo "ERROR: mountpoint \`${_mp}' does not exist" >&2 |
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340 return 1 |
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341 fi |
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342 if [ ! -r "${_basetxz}" ]; then |
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343 echo "ERROR: file \`${_basetxz}' is not readable" >&2 |
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344 return 1 |
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345 fi |
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346 |
|
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347 # |
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348 # Handle /var/empty separately later: could be already there and |
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349 # mounted read-only. |
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350 # |
|
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351 tar -C "${_mp}" --exclude=./var/empty -xJp -f "${_basetxz}" || { echo "ERROR: tar encountered errors" >&2; return 1; } |
|
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352 if [ -d "${_mp}/var/empty" ]; then |
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353 # |
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354 # If /var/empty exists already try to extract with changing the |
|
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355 # flags (e.g. `schg'). But be ignore errors here. |
|
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356 # |
|
184
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357 tar -C "${_mp}" -xJp -f "${_basetxz}" ./var/empty || { echo "tar warnings for handling ./var/empty ignored because ./var/empty exists already" >&2; } |
|
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358 else |
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359 # Just extract /var/empty normally |
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360 tar -C "${_mp}" -xJp -f "${_basetxz}" ./var/empty || { echo "ERROR: tar encountered errors" >&2; return 1; } |
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361 fi |
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362 |
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363 find "${_mp}/boot" -type f -delete |
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364 } |
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365 |
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366 |
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367 # |
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368 # "hostid" -- print a proposal for hostid/hostuuid settings in a jail |
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369 # |
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370 # command_hostid |
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371 # |
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372 command_hostid() { |
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373 # |
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374 # hostid and hostuuid should be set (at least for consistency ressons) |
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375 # in vnet jails (see /etc/rc.d/hostid and /etc/rc.d/hostid_save). |
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376 # They can be set in the jail.conf. |
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377 # Print one here that can be pasted into the jail.conf if needed. |
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378 # |
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379 # hostid and hostuuid for non-vnet jails are inherited from the parent/host. |
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380 # |
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381 # See also /etc/rc.d/hostid and /etc/rc.d/hostid_save. |
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382 # |
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383 local _new_hostuuid _new_hostid |
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384 _new_hostuuid="$(uuidgen)" |
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385 _new_hostid="$(echo -n ${_new_hostuuid} | /sbin/md5)" |
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386 _new_hostid="0x${_new_hostid%%????????????????????????}" |
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387 |
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388 echo "Proposed hostuuid/hostid:" |
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389 echo " host.hostuuid = \"${_new_hostuuid}\";" |
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390 echo " host.hostid = $((_new_hostid));" |
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391 #echo " host.hostid = ${_new_hostid};" |
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392 } |
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393 |
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394 |
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395 # |
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396 # "configure" -- configure the mountpoint |
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397 # |
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398 # command_configure mountpoint |
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399 # |
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400 command_configure() { |
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401 # mountpoint |
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402 local _mp |
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403 local _opt_devfs |
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404 |
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405 local _pcl _umount_devfs |
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406 |
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407 _umount_devfs="" |
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408 |
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409 _opt_devfs="" |
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410 while getopts "d" _opt ; do |
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411 case ${_opt} in |
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412 d) |
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413 _opt_devfs="yes" |
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414 ;; |
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415 \?) |
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416 return 2; |
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417 ;; |
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418 *) |
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419 echo "ERROR: option handling failed" 1>&2 |
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420 return 2 |
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421 ;; |
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422 esac |
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423 done |
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424 shift $((OPTIND-1)) |
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425 OPTIND=1 |
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426 |
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427 _mp="$1" |
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428 |
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429 if [ -z "${_mp}" ]; then |
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430 echo "ERROR: no mountpoint given" >&2 |
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431 return 2 |
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432 fi |
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433 if [ ! -d "${_mp}" ]; then |
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434 echo "ERROR: mountpoint \`${_mp}' does not exist" >&2 |
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435 return 1 |
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436 fi |
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437 |
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331
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438 if [ -c "${_mp}/dev/null" ]; then |
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439 if [ "${_opt_devfs}" = "yes" ]; then |
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440 echo "WARNING: devfs is already mounted - mounting skipped" |
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441 fi |
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442 else |
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443 if [ "${_opt_devfs}" = "yes" ]; then |
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444 echo "Mounting devfs" |
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445 mount -t devfs devfs "${_mp}/dev" |
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446 _umount_devfs="yes" |
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447 else |
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448 echo "ERROR: a working devfs is needed at \`{_mp}/dev' (use \`-d')" >&2 |
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449 return 1 |
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450 fi |
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451 fi |
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452 |
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453 # Deactive the by default empty root password |
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454 pw -R "${_mp}" usermod -w no -n root |
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455 |
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229
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456 if [ -f "${_mp}/etc/defaults/rc.conf" ]; then |
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457 |
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458 sysrc -R "${_mp}" sendmail_enable=NONE |
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459 sysrc -R "${_mp}" clear_tmp_enable=YES |
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460 sysrc -R "${_mp}" clear_tmp_X=NO |
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461 sysrc -R "${_mp}" syslogd_flags=-ss |
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462 sysrc -R "${_mp}" bsdstats_enable=NO # no automatic BSD stats when booting |
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463 else |
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464 echo "WARNING: No \"${_mp}/etc/defaults/rc.conf\": not configuring \"rc.conf\"" |
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465 fi |
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466 |
|
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467 if [ -f "${_mp}/usr/share/zoneinfo/Europe/Berlin" ]; then |
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468 # Timezone to CET |
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469 if [ ! -f "${_mp}/etc/localtime" ]; then |
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470 echo "Setting timezone to Europe/Berlin" |
|
250
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471 # Handle thin jails automatically (but check expectations very strictly) |
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472 if [ \( -L "${_mp}/etc" \) -a \( "$(readlink "${_mp}/etc")" = "skeleton/etc" \) ]; then |
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473 ln -s ../../usr/share/zoneinfo/Europe/Berlin "${_mp}/etc/localtime" |
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474 else |
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475 ln -s ../usr/share/zoneinfo/Europe/Berlin "${_mp}/etc/localtime" |
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476 fi |
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477 echo "Europe/Berlin" > "${_mp}/var/db/zoneinfo" |
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478 else |
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479 echo "WARNING: \"${_mp}/etc/localtime\" exists already -- not changed" |
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480 fi |
|
222
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481 else |
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482 echo "WARNING: No timezone data file found at \"${_mp}/usr/share/zoneinfo/Europe/Berlin\": skipping timezone setup" |
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483 fi |
|
221
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484 |
|
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485 # resolv.conf |
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486 if [ ! -f "${_mp}/etc/resolv.conf" ]; then |
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487 echo "Copying the host's resolv.conf into the jail" |
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488 cp -p /etc/resolv.conf "${_mp}/etc/resolv.conf" |
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489 else |
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490 echo "WARNING: \"${_mp}/etc/resolv.conf\" exists already -- not changed" |
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491 fi |
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492 |
|
225
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493 # Call newaliases within the jail |
|
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494 echo "Calling \"newaliases\"" |
|
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495 chroot "${_mp}" /usr/bin/newaliases |
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496 |
|
228
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497 _pcl="${_mp}/etc/periodic.conf.local" |
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498 if [ ! -f "${_pcl}" ]; then |
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499 echo "Adjusting periodic.conf.local" |
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500 echo "daily_ntpd_leapfile_enable=\"NO\"" > "${_pcl}" |
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501 echo "daily_status_zfs_zpool_list_enable=\"NO\"" >> "${_pcl}" |
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502 echo "daily_status_disks_enable=\"NO\"" >> "${_pcl}" |
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503 echo "daily_status_uptime_enable=\"NO\"" >> "${_pcl}" |
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504 |
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505 echo "security_status_chkmounts_enable=\"NO\"" >> "${_pcl}" |
|
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506 |
|
228
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507 else |
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508 echo "WARNING: \"${_pcl}\" exists already -- not changed" |
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509 fi |
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510 |
|
226
73f2436fdf86
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511 command_hostid |
|
328
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512 |
|
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513 if [ "${_umount_devfs}" = "yes" ]; then |
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514 echo "Unmounting devfs" |
|
329
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FIX: Shell variable expansion was not done in fjail's command configure sometimes
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|
515 umount "${_mp}/dev" |
|
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516 fi |
|
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517 } |
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518 |
|
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519 |
|
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520 # |
|
77
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521 # "copy" -- ZFS copy of datasets |
|
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522 # |
|
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523 # command_copy source-dataset destination-dataset |
|
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524 # |
|
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|
525 command_copy() { |
|
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526 # source dataset -- destination dataset |
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527 local _source _dest |
|
178
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528 # dynamic ZFS options -- ZFS copy options |
|
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529 local _zfsopts _zfscopyopts |
|
77
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|
530 |
|
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531 _zfsopts="" |
|
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532 _zfscopyopts="" |
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533 while getopts "ru" _opt ; do |
|
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534 case ${_opt} in |
|
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535 r) |
|
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536 # Use raw datasets |
|
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537 _zfscopyopts="-Lec" |
|
179
6c144aca8ac5
FIX: Proper case-switch termination
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538 ;; |
|
77
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|
539 u) |
|
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540 # do not mount newly created datasets |
|
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541 _zfsopts="${_zfsopts} -u" |
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542 ;; |
|
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|
543 \?|:) |
|
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544 return 2; |
|
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545 ;; |
|
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546 esac |
|
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|
547 done |
|
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|
548 shift $((OPTIND-1)) |
|
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549 OPTIND=1 |
|
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|
550 |
|
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551 _source="$1" |
|
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552 if [ -z "${_source}" ]; then |
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553 echo "ERROR: no source dataset given" >&2 |
|
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554 return 2 |
|
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555 fi |
|
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556 _dest="$2" |
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557 if [ -z "${_dest}" ]; then |
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|
558 echo "ERROR: no source dataset given" >&2 |
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559 return 2 |
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560 fi |
|
178
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561 zfs send -R ${_zfscopyopts} -n -v "${_source}" || { echo "ERROR: ZFS operation failed in no-op mode" >&2; return 1; } |
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562 zfs send -R ${_zfscopyopts} "${_source}" | zfs receive ${_zfsopts} "${_dest}" || { echo "ERROR: ZFS operation failed" >&2; return 1; } |
|
77
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563 } |
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564 |
|
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|
565 |
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|
566 # |
| 73 | 567 # "privs" -- adjust privileges |
| 568 # | |
| 569 # To be used when all ZFS datasets are mounted. | |
| 570 # | |
| 571 command_privs() { | |
| 572 # mountpoint | |
|
162
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When executing the "privs" command try to make <mountpoint>/var/empty writeable temporarily to set proper permissions and file flags
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|
573 local _mp _d _veds _get _vestatus |
| 73 | 574 |
| 575 _mp="$1" | |
| 576 if [ -z "${_mp}" ]; then | |
| 577 echo "ERROR: no mountpoint given" >&2 | |
| 578 return 2 | |
| 579 fi | |
| 580 if [ ! -d "${_mp}" ]; then | |
| 581 echo "ERROR: directory \`${_mp}' does not exist" >&2 | |
| 582 return 1 | |
| 583 fi | |
| 584 for _d in tmp var/tmp ; do | |
| 585 chmod 01777 "${_mp}/${_d}" | |
| 586 done | |
| 587 chown root:mail "${_mp}/var/mail" | |
| 588 chmod 0775 "${_mp}/var/mail" | |
|
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589 |
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590 # |
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591 # Handle <mountpoint>/var/empty specially: |
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592 # make it writeable temporarily if it is mounted read-only: |
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593 # |
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594 _vestatus="" |
|
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595 _veds="$(_get_dataset_for_varempty "${_mp}")" |
|
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596 if [ $? -eq 0 ]; then |
|
203
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597 _vestatus=$(zfs list -H -o readonly -t filesystem ${_veds} 2>/dev/null) || { echo "ERROR: cannot determine readonly status of ${_mp}/var/empty" >&2; return 1; } |
|
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598 if [ "${_vestatus}" = "on" ]; then |
|
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599 zfs set readonly=off ${_veds} 1> /dev/null || { echo "ERROR: cannot reset readonly-status of ${_mp}/var/empty" >&2; return 1; } |
|
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600 fi |
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601 fi |
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602 # Set the access rights and the file flags as given in mtree |
|
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603 chmod 0555 "${_mp}/var/empty" || { echo "WARNING: Cannot chmod on var/empty" >&2; } |
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604 chflags schg "${_mp}/var/empty" || { echo "WARNING: Cannot chflags on var/empty" >&2; } |
|
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605 # Reset the read-only status of the mountpoint as it was before |
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606 if [ "${_vestatus}" = "on" ]; then |
|
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607 zfs set readonly=on ${_veds} 1> /dev/null || { echo "ERROR: cannot reactivate readonly-status of ${_mp}/var/empty" >&2; return 1; } |
|
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608 fi |
| 73 | 609 } |
|
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610 |
|
74
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611 |
|
347
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612 #: |
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613 #: Implement the "freebsd-update" command |
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614 #: |
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615 command_freebsd_update() { |
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616 local directory operations |
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617 |
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618 local opt_currently_running |
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619 |
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620 opt_currently_running="" |
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621 while getopts "c:" _opt ; do |
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622 case ${_opt} in |
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623 c) |
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624 opt_currently_running="$OPTARG" |
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625 ;; |
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626 \?|:) |
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627 return 2; |
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628 ;; |
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629 esac |
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630 done |
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631 shift $((OPTIND-1)) |
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632 OPTIND=1 |
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633 |
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634 directory="${1-}" |
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635 |
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636 [ -z "${directory}" ] && { echo "ERROR: no directory given" 1>&2; return 2; } |
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637 [ -d "${directory}" ] || { echo "ERROR: directory \`${directory}' does not exist" 1>&2; return 1; } |
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638 |
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639 shift |
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640 operations="$@" |
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641 |
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642 if _has_same_userland_version "${directory}" "${opt_currently_running}" ; then |
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643 if [ -n "${opt_currently_running}" ]; then |
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644 freebsd-update -b "${directory}" --currently-running "${opt_currently_running}" ${operations} |
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645 else |
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646 freebsd-update -b "${directory}" ${operations} |
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647 fi |
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648 else |
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649 echo "ERROR: Userland version mismatch" 1>&2 |
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650 return 1 |
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651 fi |
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652 } |
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653 |
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654 |
|
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655 # |
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656 # Global option handling |
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657 # |
|
81
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658 while getopts "Vh" _opt ; do |
|
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659 case ${_opt} in |
|
81
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660 V) |
|
144
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661 printf 'fjail v%s (rv:%s)\n' "${VERSION}" '@@HGREVISION@@' |
|
81
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662 exit 0 |
|
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663 ;; |
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664 h) |
| 75 | 665 echo "${USAGE}" |
|
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666 exit 0 |
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667 ;; |
|
80
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668 \?) |
|
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669 exit 2; |
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670 ;; |
|
80
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671 *) |
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672 echo "ERROR: option handling failed" >&2 |
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673 exit 2 |
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674 ;; |
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675 esac |
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676 done |
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677 |
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678 # |
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679 # Reset the Shell's option handling system to prepare for handling |
|
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680 # command-local options. |
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681 # |
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682 shift $((OPTIND-1)) |
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683 OPTIND=1 |
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684 |
|
92
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685 test $# -gt 0 || { echo "ERROR: no command given" >&2; exit 2; } |
|
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686 |
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687 command="$1" |
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688 shift |
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689 |
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690 case "${command}" in |
| 73 | 691 datasets) |
| 692 command_datasets "$@" | |
| 693 ;; | |
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694 mount) |
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695 exec "$(dirname $0)/fzfs" mount "$@" |
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696 ;; |
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697 umount|unmount) |
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698 exec "$(dirname $0)/fzfs" umount "$@" |
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699 ;; |
| 73 | 700 privs) |
| 701 command_privs "$@" | |
| 702 ;; | |
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76
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703 populate) |
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704 command_populate "$@" |
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705 ;; |
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219
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706 configure) |
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707 command_configure "$@" |
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708 ;; |
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226
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709 hostid) |
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710 command_hostid "$@" |
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711 ;; |
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77
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712 copy) |
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713 command_copy "$@" |
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714 ;; |
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347
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715 freebsd-update) |
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716 command_freebsd_update "$@" |
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717 ;; |
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718 *) |
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719 echo "ERROR: unknown command \`${command}'" >&2 |
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720 exit 2 |
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721 ;; |
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722 esac |