Mercurial > hgrepos > FreeBSD > ports > sysutils > local-bsdtools
annotate sbin/fjail @ 224:6713d97b4180
Copy the host's resolv.conf into a jail when configuring it.
But do not overwrite an existing resolv.conf.
| author | Franz Glasner <f.glasner@feldmann-mg.com> |
|---|---|
| date | Wed, 31 Aug 2022 13:01:35 +0200 |
| parents | dce9ba905c32 |
| children | ffd24013d346 |
| 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=auto" 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 [-O] [-u] [-n] DATASET [MOUNTPOINT] |
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45 |
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46 Mount the ZFS dataset DATASET and all its children to mountpoint |
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47 MOUNTPOINT |
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48 |
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49 -O Also mount datasets at mountpoints outside of their "natural" |
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50 and inherited mountpoints |
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51 -N Mount at their "natural" configured ZFS mountpoints (MOUNTPOINT is not required) |
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52 -n Do not really mount but show what would be mounted where |
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53 -u Alias of -n |
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54 |
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55 umount DATASET |
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56 |
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57 Unmount the mounted DATASET and all its children |
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58 |
| 75 | 59 privs MOUNTPOINT |
| 60 | |
| 61 Adjust some Unix privileges to mounted jail datasets | |
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62 |
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63 populate MOUNTPOINT BASETXZ |
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64 |
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65 Populate the jail directory in MOUNTPOINT with the base system in BASETXZ |
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66 |
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67 configure MOUNPOINT |
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68 |
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69 Configure some basic parts of the system at MOUNTPOINT: |
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70 disable root password, syslog and other basic configuration settings |
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71 |
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72 copy [OPTIONS] SOURCE-DATASET DEST-DATASET |
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73 |
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74 Copy a tree of ZFS datasets with "zfs send -R" and "zfs receive". |
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75 Note that the destination dataset must not exist already. |
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76 |
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77 -r Copy the datasets with the -Lec options (aka "raw") |
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78 -u Do not automatically mount received datasets |
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79 |
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80 ENVIRONMENT: |
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81 |
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82 All environment variables that affect "zfs" are effective also. |
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83 |
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84 DESCRIPTION: |
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85 |
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86 All commands with the exception of "populate" require ZFS as |
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87 filesystem. |
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88 ' |
| 75 | 89 |
| 90 | |
| 73 | 91 # Reset to standard umask |
| 92 umask 0022 | |
| 93 | |
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94 |
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95 _get_dataset_for_mountpoint() { |
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96 : 'Use `mount -t zfs -p` to determine the ZFS dataset for a given mountpoint. |
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97 |
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98 ' |
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99 local _mountpoint |
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100 local _ds _mount _rest |
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101 |
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102 _mountpoint="$1" |
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103 |
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104 mount -t zfs -p \ |
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105 | { |
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106 while IFS=' '$'\t' read -r _ds _mount _rest ; do |
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107 if [ "$_mount" = "$_mountpoint" ]; then |
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108 echo "${_ds}" |
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109 return 0 |
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110 fi |
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111 done |
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112 return 1 |
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113 } |
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114 } |
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115 |
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116 |
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117 _get_dataset_for_varempty() { |
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118 : 'Allow special handling for <mountpoint>/var/empty which may be |
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119 mounted read-only. |
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120 |
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121 ' |
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122 local _mountpoint |
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123 local _ve_mount |
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124 |
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125 _mountpoint="$1" |
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126 |
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127 if [ "$_mountpoint" = '/' ]; then |
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128 _ve_mount='/var/empty' |
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129 else |
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130 _ve_mount="${_mountpoint}/var/empty" |
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131 fi |
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132 |
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133 _get_dataset_for_mountpoint "${_ve_mount}" |
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134 } |
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135 |
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136 |
| 73 | 137 # |
| 138 # "datasets" -- create the ZFS dataset tree | |
| 139 # | |
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140 # command_datasets [ -u ] parent-dataset child-dataset |
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141 # |
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142 # -u do not automatically mount newly created datasets |
| 73 | 143 # |
| 144 command_datasets() { | |
| 145 # parent ZFS dataset -- child ZFS dataset name | |
| 146 local _pds _cds | |
| 147 # and its mount point | |
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148 local _pmp _get |
| 73 | 149 # full name of the dataset |
| 150 local _ds | |
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151 # dynamic ZFS options -- create cache for freebsd-update -- use a more tiny layout |
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152 local _zfsopts _fbsdupdate _tiny _zfsnoauto _varempty_ro |
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153 |
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154 _zfsopts="" |
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177
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155 _fbsdupdate="" |
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156 _tiny="no" |
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157 _zfsnoauto="" |
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158 _varempty_ro="-o readonly=on" |
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159 while getopts "oustAT" _opt ; do |
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160 case ${_opt} in |
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161 A) |
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162 # |
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163 # set canmount=noauto where otherwise canmount=on would have been set |
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164 # or inherited |
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165 # |
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166 _zfsnoauto="-o canmount=noauto" |
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167 ;; |
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168 o) |
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169 # Clear out the default setting of creating var/empty as read-only dataset |
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170 _varempty_ro="" |
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171 ;; |
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172 t) |
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173 # use a more tiny layout |
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174 _tiny="yes" |
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175 ;; |
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176 T) # extra tiny layout |
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177 _tiny="extra" |
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178 ;; |
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179 u) |
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180 # do not mount newly created datasets |
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181 _zfsopts="${_zfsopts} -u" |
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182 ;; |
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183 s) |
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184 # create also a dataset for freebsd-update data |
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185 _fbsdupdate="yes" |
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179
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186 ;; |
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187 \?|:) |
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188 return 2; |
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189 ;; |
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190 esac |
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191 done |
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192 shift $((OPTIND-1)) |
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193 OPTIND=1 |
| 73 | 194 |
| 195 _pds="$1" | |
| 196 if [ -z "${_pds}" ]; then | |
| 197 echo "ERROR: no parent dataset given" >&2 | |
| 198 return 2 | |
| 199 fi | |
|
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200 _pmp=$(zfs list -H -o mountpoint -t filesystem "${_pds}" 2>/dev/null) || { echo "ERROR: dataset \`${_pds}' does not exist" >&2; return 1; } |
| 73 | 201 case "${_pmp}" in |
| 202 none) | |
| 203 echo "ERROR: dataset \`${_pds}' has no mountpoint" >&2 | |
| 204 return 1 | |
| 205 ;; | |
| 206 legacy) | |
| 207 echo "ERROR: dataset \`${_pds}' has a \`${_mp}' mountpoint" >&2 | |
| 208 return 1 | |
| 209 ;; | |
| 210 *) | |
| 211 # VOID | |
| 212 ;; | |
| 213 esac | |
| 214 _cds="$2" | |
| 215 if [ -z "${_cds}" ]; then | |
| 216 echo "ERROR: no child dataset given" >&2 | |
| 217 return 2 | |
| 218 fi | |
| 219 _ds="${_pds}/${_cds}" | |
| 220 echo "Resulting new root dataset is \`${_ds}' at mountpoint \`${_pmp}/${_cds}'" | |
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221 if zfs list -H -o mountpoint -t filesystem "${_ds}" >/dev/null 2>/dev/null; then |
| 73 | 222 echo "ERROR: dataset \`${_ds}' does already exist" >&2 |
| 223 return 1 | |
| 224 fi | |
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225 |
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226 # |
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227 # NOTE: For BEs these directory will be *excluded* from the BE |
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228 # |
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229 # /tmp |
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230 # /usr/home |
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231 # /usr/ports |
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232 # /usr/src |
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233 # /var/audit |
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234 # /var/crash |
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235 # /var/log |
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236 # /var/mail |
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237 # /var/tmp |
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238 # |
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239 zfs create ${_zfsopts} ${_zfsnoauto} -o atime=off "${_ds}" |
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240 zfs create ${_zfsopts} ${_zfsnoauto} -o sync=disabled -o setuid=off "${_ds}/tmp" |
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241 if [ "${_tiny}" != "extra" ]; then |
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242 if [ "${_tiny}" = "yes" ]; then |
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243 zfs create ${_zfsopts} -o canmount=off "${_ds}/usr" |
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244 else |
|
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245 zfs create ${_zfsopts} ${_zfsnoauto} "${_ds}/usr" |
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246 fi |
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247 zfs create ${_zfsopts} ${_zfsnoauto} -o setuid=off "${_ds}/usr/home" |
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248 zfs create ${_zfsopts} ${_zfsnoauto} "${_ds}/usr/local" |
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249 fi |
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250 if [ \( "${_tiny}" = "yes" \) -o \( "${_tiny}" = "extra" \) ]; then |
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251 zfs create ${_zfsopts} -o canmount=off "${_ds}/var" |
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252 else |
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253 zfs create ${_zfsopts} ${_zfsnoauto} "${_ds}/var" |
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254 fi |
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255 if [ "${_tiny}" != "extra" ]; then |
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256 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off "${_ds}/var/audit" |
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257 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off "${_ds}/var/cache" |
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258 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off -o primarycache=metadata -o compression=off "${_ds}/var/cache/pkg" |
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259 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off -o compression=off "${_ds}/var/crash" |
|
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260 fi |
|
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261 if [ "$_fbsdupdate" = "yes" ]; then |
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262 if [ \( "${_tiny}" = "yes" \) -o \( "${_tiny}" = "extra" \) ]; then |
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263 zfs create ${_zfsopts} -o canmount=off -o exec=off -o setuid=off "${_ds}/var/db" |
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264 else |
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265 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off "${_ds}/var/db" |
|
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266 fi |
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267 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off -o primarycache=metadata -o compression=off "${_ds}/var/db/freebsd-update" |
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268 fi |
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269 zfs create ${_zfsopts} ${_zfsnoauto} ${_varempty_ro} -o exec=off -o setuid=off "${_ds}/var/empty" |
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270 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off -o primarycache=metadata "${_ds}/var/log" |
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271 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off -o atime=on "${_ds}/var/mail" |
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272 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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273 zfs create ${_zfsopts} ${_zfsnoauto} -o sync=disabled -o setuid=off "${_ds}/var/tmp" |
| 73 | 274 } |
| 275 | |
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276 |
| 73 | 277 # |
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278 # "populate" -- populate the datasets with content from a FreeBSD base.txz |
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279 # |
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280 # command_populate mountpoint basetxz |
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281 # |
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282 command_populate() { |
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283 # MOUNTPOINT -- base.txz |
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284 local _mp _basetxz |
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285 |
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286 _mp="$1" |
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287 _basetxz="$2" |
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288 |
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289 if [ -z "${_mp}" ]; then |
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290 echo "ERROR: no mountpoint given" >&2 |
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291 return 2 |
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292 fi |
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293 if [ -z "${_basetxz}" ]; then |
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294 echo "ERROR: no base.txz given" >&2 |
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295 return 2 |
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296 fi |
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297 if [ ! -d "${_mp}" ]; then |
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298 echo "ERROR: mountpoint \`${_mp}' does not exist" >&2 |
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299 return 1 |
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300 fi |
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301 if [ ! -r "${_basetxz}" ]; then |
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302 echo "ERROR: file \`${_basetxz}' is not readable" >&2 |
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303 return 1 |
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304 fi |
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305 |
|
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306 # |
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307 # Handle /var/empty separately later: could be already there and |
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308 # mounted read-only. |
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309 # |
|
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310 tar -C "${_mp}" --exclude=./var/empty -xJp -f "${_basetxz}" || { echo "ERROR: tar encountered errors" >&2; return 1; } |
|
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311 if [ -d "${_mp}/var/empty" ]; then |
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312 # |
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313 # If /var/empty exists already try to extract with changing the |
|
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314 # flags (e.g. `schg'). But be ignore errors here. |
|
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315 # |
|
184
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316 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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317 else |
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318 # Just extract /var/empty normally |
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319 tar -C "${_mp}" -xJp -f "${_basetxz}" ./var/empty || { echo "ERROR: tar encountered errors" >&2; return 1; } |
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320 fi |
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321 |
|
164
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322 find "${_mp}/boot" -type f -delete |
|
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323 } |
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324 |
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325 |
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326 # |
|
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327 # "configure" -- configure the mountpoint |
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328 # |
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329 # command_configure mountpoint |
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330 # |
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331 command_configure() { |
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332 # mountpoint |
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333 local _mp |
|
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334 local _new_hostuuid _new_hostid |
|
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335 |
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336 _mp="$1" |
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337 |
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338 if [ -z "${_mp}" ]; then |
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339 echo "ERROR: no mountpoint given" >&2 |
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340 return 2 |
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341 fi |
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342 if [ ! -d "${_mp}" ]; then |
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343 echo "ERROR: mountpoint \`${_mp}' does not exist" >&2 |
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344 return 1 |
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345 fi |
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346 |
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347 # Deactive the by default empty root password |
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348 pw -R "${_mp}" usermod -w no -n root |
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349 |
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350 sysrc -R "${_mp}" sendmail_enable=NONE |
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351 sysrc -R "${_mp}" clear_tmp_enable=YES |
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352 sysrc -R "${_mp}" clear_tmp_X=NO |
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353 sysrc -R "${_mp}" syslogd_flags=-ss |
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354 sysrc -R "${_mp}" bsdstats_enable=NO # no automatic BSD stats when booting |
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355 |
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356 # Timezone to CET |
|
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357 if [ ! -f "${_mp}/etc/localtime" ]; then |
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358 echo "Setting timezone to Europe/Berlin" |
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359 ln -s ../usr/share/zoneinfo/Europe/Berlin "${_mp}/etc/localtime" |
|
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360 echo "Europe/Berlin" > "${_mp}/var/db/zoneinfo" |
|
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361 else |
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362 echo "WARNING: \"${_mp}/etc/localtime\" exists already -- not changed" |
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363 fi |
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364 |
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365 # resolv.conf |
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366 if [ ! -f "${_mp}/etc/resolv.conf" ]; then |
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367 echo "Copying the host's resolv.conf into the jail" |
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368 cp -p /etc/resolv.conf "${_mp}/etc/resolv.conf" |
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369 else |
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370 echo "WARNING: \"${_mp}/etc/resolv.conf\" exists already -- not changed" |
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371 fi |
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372 |
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373 # |
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374 # hostid and hostuuid should be set (at least for consistency ressons) |
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375 # in vnet jails (see /etc/rc.d/hostid and /etc/rc.d/hostid_save). |
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376 # They can be set in the jail.conf. |
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377 # Print one here that can be pasted into the jail.conf if needed. |
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378 # |
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379 # hostid and hostuuid for non-vnet jails are inherited from the parent/host. |
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380 # |
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381 # See also /etc/rc.d/hostid and /etc/rc.d/hostid_save. |
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382 # |
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383 _new_hostuuid="$(uuidgen)" |
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384 _new_hostid="$(echo -n ${_new_hostuuid} | /sbin/md5)" |
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385 _new_hostid="0x${_new_hostid%%????????????????????????}" |
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386 |
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387 echo "Proposed hostuuid/hostid:" |
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388 echo " host.hostuuid = \"${_new_hostuuid}\";" |
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389 echo " host.hostid = $((_new_hostid));" |
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390 #echo " host.hostid = ${_new_hostid};" |
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391 } |
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392 |
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393 |
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394 # |
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395 # "copy" -- ZFS copy of datasets |
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396 # |
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397 # command_copy source-dataset destination-dataset |
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398 # |
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399 command_copy() { |
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400 # source dataset -- destination dataset |
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401 local _source _dest |
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402 # dynamic ZFS options -- ZFS copy options |
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403 local _zfsopts _zfscopyopts |
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404 |
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405 _zfsopts="" |
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406 _zfscopyopts="" |
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407 while getopts "ru" _opt ; do |
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408 case ${_opt} in |
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409 r) |
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410 # Use raw datasets |
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411 _zfscopyopts="-Lec" |
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412 ;; |
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413 u) |
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414 # do not mount newly created datasets |
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415 _zfsopts="${_zfsopts} -u" |
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416 ;; |
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417 \?|:) |
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418 return 2; |
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419 ;; |
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420 esac |
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421 done |
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422 shift $((OPTIND-1)) |
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423 OPTIND=1 |
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424 |
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425 _source="$1" |
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426 if [ -z "${_source}" ]; then |
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427 echo "ERROR: no source dataset given" >&2 |
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428 return 2 |
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429 fi |
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430 _dest="$2" |
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431 if [ -z "${_dest}" ]; then |
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432 echo "ERROR: no source dataset given" >&2 |
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433 return 2 |
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434 fi |
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435 zfs send -R ${_zfscopyopts} -n -v "${_source}" || { echo "ERROR: ZFS operation failed in no-op mode" >&2; return 1; } |
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436 zfs send -R ${_zfscopyopts} "${_source}" | zfs receive ${_zfsopts} "${_dest}" || { echo "ERROR: ZFS operation failed" >&2; return 1; } |
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437 } |
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438 |
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439 |
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440 # |
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441 # "mount" -- recursively mount a dataset including subordinate datasets |
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442 # |
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443 # command_mount dataset mountpoint |
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444 # |
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445 command_mount() { |
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446 local _dsname _mountpoint |
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447 local _name _mp _canmount _mounted |
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448 local _rootds_mountpoint _relative_mp _real_mp |
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449 local _dry_run _mount_outside _mount_natural |
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450 |
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451 _dry_run="" |
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452 _mount_outside="" |
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453 _mount_natural="" |
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454 while getopts "ONnu" _opt ; do |
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455 case ${_opt} in |
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456 O) |
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457 _mount_outside="yes" |
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458 ;; |
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459 N) |
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460 _mount_natural="yes" |
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461 ;; |
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462 n|u) |
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463 _dry_run="yes" |
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464 ;; |
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465 \?|:) |
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466 return 2; |
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467 ;; |
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468 esac |
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469 done |
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470 shift $((OPTIND-1)) |
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471 OPTIND=1 |
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472 |
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473 _dsname="${1-}" |
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474 _mountpoint="${2-}" |
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475 |
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476 if [ -z "${_dsname}" ]; then |
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477 echo "ERROR: no dataset given" >&2 |
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478 return 2 |
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479 fi |
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480 |
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481 _rootds_mountpoint="$(zfs list -H -o mountpoint -t filesystem "${_dsname}")" || \ |
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482 { echo "ERROR: root dataset does not exist" >&2; return 1; } |
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483 |
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484 if [ -z "${_mountpoint}" ]; then |
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485 if [ "${_mount_natural}" = "yes" ]; then |
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486 _mountpoint="${_rootds_mountpoint}" |
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487 else |
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488 echo "ERROR: no mountpoint given" >&2 |
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489 return 2 |
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490 fi |
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491 else |
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492 if [ "${_mount_natural}" = "yes" ]; then |
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493 echo "ERROR: Cannot have a custom mountpoint when \"-O\" is given" >&2 |
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494 return 2 |
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495 fi |
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496 fi |
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497 |
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498 # Eventually remove a trailing slash |
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499 _mountpoint="${_mountpoint%/}" |
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500 if [ -z "${_mountpoint}" ]; then |
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501 echo "ERROR: would mount over the root filesystem" >&2 |
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502 return 1 |
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503 fi |
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504 |
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505 zfs list -H -o name,mountpoint,canmount,mounted -s mountpoint -t filesystem -r "${_dsname}" \ |
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506 | { |
|
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507 while IFS=$'\t' read -r _name _mp _canmount _mounted ; do |
|
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508 # Skip filesystems that are already mounted |
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509 [ "${_mounted}" = "yes" ] && continue |
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510 # Skip filesystems that must not be mounted |
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511 [ "${_canmount}" = "off" ] && continue |
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512 case "${_mp}" in |
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513 "none"|"legacy") |
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514 # Do nothing for filesystem with unset or legacy mountpoints |
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515 ;; |
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516 "${_rootds_mountpoint}"|"${_rootds_mountpoint}/"*) |
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517 # |
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518 # Handle only mountpoints that have a mountpoint below |
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519 # the parent datasets mountpoint |
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520 # |
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521 |
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522 # Determine the mountpoint relative to the parent mountpoint |
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523 _relative_mp="${_mp#${_rootds_mountpoint}}" |
| 209 | 524 # Eventually remove a trailing slash |
|
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525 _relative_mp="${_relative_mp%/}" |
| 209 | 526 # The real effective full mountpoint |
|
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527 _real_mp="${_mountpoint}${_relative_mp}" |
|
210
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528 |
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529 # |
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530 # Consistency and sanity check: computed real mountpoint must |
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531 # be equal to the configured mountpoint when no custom mountpoint |
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532 # is given. |
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533 # |
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534 if [ "${_mount_natural}" = "yes" ]; then |
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535 if [ "${_real_mp}" != "${_mp}" ]; then |
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536 echo "ERROR: mountpoint mismatch" >&2 |
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537 return 1 |
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538 fi |
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539 fi |
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540 |
|
194
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541 if [ "${_dry_run}" = "yes" ]; then |
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542 echo "Would mount ${_name} on ${_real_mp}" |
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543 else |
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544 mkdir -p "${_real_mp}" 1> /dev/null 2> /dev/null || \ |
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545 { echo "ERROR: cannot create mountpoint ${_real_mp}" >&2; return 1; } |
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546 echo "Mounting ${_name} on ${_real_mp}" |
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547 mount -t zfs "${_name}" "${_real_mp}" || return 1 |
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548 fi |
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549 ;; |
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550 *) |
|
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551 if [ "${_mount_outside}" = "yes" ]; then |
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552 if [ "${_dry_run}" = "yes" ]; then |
| 208 | 553 echo "Would mount ${_name} on configured ZFS dataset mountpoint ${_mp}" |
|
206
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554 else |
| 208 | 555 echo "Mounting ${_name} on configured ZFS dataset mountpoint ${_mp}" |
|
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556 zfs mount "${_name}" || return 1 |
|
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557 fi |
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558 else |
| 208 | 559 echo "Skipping ${_name} because its configured ZFS mountpoint is not relative to given root dataset" 2>&1 |
|
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|
560 fi |
|
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561 ;; |
|
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562 esac |
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|
563 done |
|
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564 |
|
201
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565 return 0 |
|
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566 } |
|
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567 } |
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568 |
|
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569 |
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570 # |
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571 # "umount" -- Recursively unmount ZFS datasets |
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572 # |
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573 # command_umount dataset |
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574 # |
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575 command_umount() { |
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576 local _dsname |
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577 local _name _mp _rest |
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578 local _rootds_mountpoint |
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579 |
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580 _dsname="${1-}" |
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581 [ -z "${_dsname}" ] && \ |
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582 { echo "ERROR: no dataset given" >&2; return 2; } |
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583 |
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584 # Just determine whether the given dataset name exists |
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585 _rootds_mountpoint="$(zfs list -H -o mountpoint -t filesystem "${_dsname}")" || { echo "ERROR: dataset not found" >&2; return 1; } |
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586 |
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201
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587 mount -t zfs -p \ |
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588 | grep -E "^${_dsname}(/|\s)" \ |
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589 | sort -n -r \ |
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590 | { |
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591 while IFS=' '$'\t' read -r _name _mp _rest ; do |
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592 echo "Umounting ${_name} on ${_mp}" |
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593 umount "${_mp}" || return 1 |
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594 done |
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595 return 0 |
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596 } |
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597 } |
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598 |
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599 |
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600 # |
| 73 | 601 # "privs" -- adjust privileges |
| 602 # | |
| 603 # To be used when all ZFS datasets are mounted. | |
| 604 # | |
| 605 command_privs() { | |
| 606 # mountpoint | |
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607 local _mp _d _veds _get _vestatus |
| 73 | 608 |
| 609 _mp="$1" | |
| 610 if [ -z "${_mp}" ]; then | |
| 611 echo "ERROR: no mountpoint given" >&2 | |
| 612 return 2 | |
| 613 fi | |
| 614 if [ ! -d "${_mp}" ]; then | |
| 615 echo "ERROR: directory \`${_mp}' does not exist" >&2 | |
| 616 return 1 | |
| 617 fi | |
| 618 for _d in tmp var/tmp ; do | |
| 619 chmod 01777 "${_mp}/${_d}" | |
| 620 done | |
| 621 chown root:mail "${_mp}/var/mail" | |
| 622 chmod 0775 "${_mp}/var/mail" | |
|
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623 |
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624 # |
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625 # Handle <mountpoint>/var/empty specially: |
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626 # make it writeable temporarily if it is mounted read-only: |
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627 # |
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628 _vestatus="" |
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629 _veds="$(_get_dataset_for_varempty "${_mp}")" |
|
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630 if [ $? -eq 0 ]; then |
|
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631 _vestatus=$(zfs list -H -o readonly -t filesystem ${_veds} 2>/dev/null) || { echo "ERROR: cannot determine readonly status of ${_mp}/var/empty" >&2; return 1; } |
|
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632 if [ "${_vestatus}" = "on" ]; then |
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633 zfs set readonly=off ${_veds} 1> /dev/null || { echo "ERROR: cannot reset readonly-status of ${_mp}/var/empty" >&2; return 1; } |
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634 fi |
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635 fi |
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636 # Set the access rights and the file flags as given in mtree |
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637 chmod 0555 "${_mp}/var/empty" || { echo "WARNING: Cannot chmod on var/empty" >&2; } |
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638 chflags schg "${_mp}/var/empty" || { echo "WARNING: Cannot chflags on var/empty" >&2; } |
|
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639 # Reset the read-only status of the mountpoint as it was before |
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640 if [ "${_vestatus}" = "on" ]; then |
|
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641 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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642 fi |
| 73 | 643 } |
|
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644 |
|
74
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645 |
|
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646 # |
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647 # Global option handling |
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648 # |
|
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649 while getopts "Vh" _opt ; do |
|
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650 case ${_opt} in |
|
81
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651 V) |
|
144
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652 printf 'fjail v%s (rv:%s)\n' "${VERSION}" '@@HGREVISION@@' |
|
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653 exit 0 |
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654 ;; |
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655 h) |
| 75 | 656 echo "${USAGE}" |
|
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657 exit 0 |
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658 ;; |
|
80
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659 \?) |
|
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660 exit 2; |
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661 ;; |
|
80
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662 *) |
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663 echo "ERROR: option handling failed" >&2 |
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664 exit 2 |
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665 ;; |
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666 esac |
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667 done |
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668 |
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669 # |
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670 # Reset the Shell's option handling system to prepare for handling |
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671 # command-local options. |
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672 # |
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673 shift $((OPTIND-1)) |
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674 OPTIND=1 |
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675 |
|
92
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676 test $# -gt 0 || { echo "ERROR: no command given" >&2; exit 2; } |
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677 |
|
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678 command="$1" |
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679 shift |
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680 |
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681 case "${command}" in |
| 73 | 682 datasets) |
| 683 command_datasets "$@" | |
| 684 ;; | |
|
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685 mount) |
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686 command_mount "$@" |
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687 ;; |
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688 umount|unmount) |
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689 command_umount "$@" |
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690 ;; |
| 73 | 691 privs) |
| 692 command_privs "$@" | |
| 693 ;; | |
|
76
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694 populate) |
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695 command_populate "$@" |
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696 ;; |
|
219
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697 configure) |
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220
9addf133d208
FIX: Typo when calling the internal implementation of "configure"
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698 command_configure "$@" |
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219
39b736a91d0d
Begin a "configure" command for jails
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699 ;; |
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77
5aab3a28895f
Implemented a "copy" command to employ zfs send/receive for recursively copying jail datasets
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parents:
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700 copy) |
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Implemented a "copy" command to employ zfs send/receive for recursively copying jail datasets
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parents:
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701 command_copy "$@" |
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5aab3a28895f
Implemented a "copy" command to employ zfs send/receive for recursively copying jail datasets
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parents:
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702 ;; |
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72
929051be7845
Begin a simple (ZFS-related) jail setup tool
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parents:
diff
changeset
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703 *) |
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76
fea2ef3ff89a
Populate an existing directory tree with the contents of base.txz
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704 echo "ERROR: unknown command \`${command}'" >&2 |
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72
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Begin a simple (ZFS-related) jail setup tool
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parents:
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705 exit 2 |
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929051be7845
Begin a simple (ZFS-related) jail setup tool
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parents:
diff
changeset
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706 ;; |
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929051be7845
Begin a simple (ZFS-related) jail setup tool
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parents:
diff
changeset
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707 esac |