Mercurial > hgrepos > FreeBSD > ports > sysutils > local-bsdtools
annotate sbin/fjail @ 346:3b2935985c73
Prepare for some more future compatibility check on FreeBSD updates: implement _has_same_userland_version()
| author | Franz Glasner <fzglas.hg@dom66.de> |
|---|---|
| date | Mon, 05 Dec 2022 09:37:53 +0100 |
| parents | 4a17b1f4c378 |
| children | 673505e96cea |
| 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 ENVIRONMENT: |
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83 |
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84 All environment variables that affect "zfs" are effective also. |
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85 |
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86 DESCRIPTION: |
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87 |
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88 All commands with the exception of "populate" require ZFS as |
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89 filesystem. |
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90 ' |
| 75 | 91 |
| 92 | |
| 73 | 93 # Reset to standard umask |
| 94 umask 0022 | |
| 95 | |
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96 |
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97 _get_dataset_for_mountpoint() { |
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98 : 'Use `mount -t zfs -p` to determine the ZFS dataset for a given mountpoint. |
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99 |
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100 ' |
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101 local _mountpoint |
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102 local _ds _mount _rest |
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103 |
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104 _mountpoint="$1" |
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105 |
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106 mount -t zfs -p \ |
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107 | { |
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108 while IFS=' '$'\t' read -r _ds _mount _rest ; do |
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109 if [ "$_mount" = "$_mountpoint" ]; then |
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110 echo "${_ds}" |
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111 return 0 |
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112 fi |
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113 done |
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114 return 1 |
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115 } |
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116 } |
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117 |
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118 |
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119 _get_dataset_for_varempty() { |
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120 : 'Allow special handling for <mountpoint>/var/empty which may be |
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121 mounted read-only. |
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122 |
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123 ' |
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124 local _mountpoint |
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125 local _ve_mount |
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126 |
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127 _mountpoint="$1" |
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128 |
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129 if [ "$_mountpoint" = '/' ]; then |
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130 _ve_mount='/var/empty' |
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131 else |
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132 _ve_mount="${_mountpoint}/var/empty" |
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133 fi |
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134 |
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135 _get_dataset_for_mountpoint "${_ve_mount}" |
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136 } |
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137 |
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138 |
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346
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139 #: |
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140 #: Check whether a FreeBSD version at a given location matches the userland |
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141 #: version of the host where the current process run. |
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142 #: |
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143 #: Args: |
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144 #: $1: the location where to check for |
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145 #: |
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146 #: Returns: |
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147 #: 0 if the userland versions match, 1 otherwise |
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148 #: |
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149 #: Exit: |
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150 #: 1 on fatal errors (e.g. /bin/freebsd-version not found or errors) |
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151 #: |
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152 _has_same_userland_version() { |
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153 local directory |
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154 |
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155 local _host_version _directory_version |
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156 |
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157 directory="$1" |
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158 |
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159 _host_version=$(/bin/freebsd-version -u) || exit 1 |
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160 _directory_version=$(chroot "${directory}" /bin/freebsd-version -u) || exit 1 |
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161 if [ "${_host_version%%-*}" = "${_directory_version%%-*}" ]; then |
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162 return 0 |
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163 fi |
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164 return 1 |
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165 } |
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166 |
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167 |
| 73 | 168 # |
| 169 # "datasets" -- create the ZFS dataset tree | |
| 170 # | |
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171 # command_datasets [ -u ] parent-dataset child-dataset |
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172 # |
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173 # -u do not automatically mount newly created datasets |
| 73 | 174 # |
| 175 command_datasets() { | |
| 176 # parent ZFS dataset -- child ZFS dataset name | |
| 177 local _pds _cds | |
| 178 # and its mount point | |
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202
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179 local _pmp _get |
| 73 | 180 # full name of the dataset |
| 181 local _ds | |
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182 # dynamic ZFS options -- create cache for freebsd-update -- use a more tiny layout |
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183 local _zfsopts _fbsdupdate _tiny _zfsnoauto _varempty_ro |
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184 |
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185 _zfsopts="" |
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177
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186 _fbsdupdate="" |
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181
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187 _tiny="no" |
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204
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188 _zfsnoauto="" |
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211
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189 _varempty_ro="-o readonly=on" |
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190 while getopts "oustAT" _opt ; do |
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191 case ${_opt} in |
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204
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192 A) |
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193 # |
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194 # set canmount=noauto where otherwise canmount=on would have been set |
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195 # or inherited |
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196 # |
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197 _zfsnoauto="-o canmount=noauto" |
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198 ;; |
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211
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199 o) |
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200 # Clear out the default setting of creating var/empty as read-only dataset |
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201 _varempty_ro="" |
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202 ;; |
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181
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203 t) |
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204 # use a more tiny layout |
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205 _tiny="yes" |
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206 ;; |
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207 T) # extra tiny layout |
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208 _tiny="extra" |
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209 ;; |
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210 u) |
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211 # do not mount newly created datasets |
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212 _zfsopts="${_zfsopts} -u" |
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213 ;; |
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214 s) |
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215 # create also a dataset for freebsd-update data |
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216 _fbsdupdate="yes" |
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179
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217 ;; |
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218 \?|:) |
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219 return 2; |
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220 ;; |
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221 esac |
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222 done |
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223 shift $((OPTIND-1)) |
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224 OPTIND=1 |
| 73 | 225 |
| 226 _pds="$1" | |
| 227 if [ -z "${_pds}" ]; then | |
| 228 echo "ERROR: no parent dataset given" >&2 | |
| 229 return 2 | |
| 230 fi | |
|
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231 _pmp=$(zfs list -H -o mountpoint -t filesystem "${_pds}" 2>/dev/null) || { echo "ERROR: dataset \`${_pds}' does not exist" >&2; return 1; } |
| 73 | 232 case "${_pmp}" in |
| 233 none) | |
| 234 echo "ERROR: dataset \`${_pds}' has no mountpoint" >&2 | |
| 235 return 1 | |
| 236 ;; | |
| 237 legacy) | |
| 238 echo "ERROR: dataset \`${_pds}' has a \`${_mp}' mountpoint" >&2 | |
| 239 return 1 | |
| 240 ;; | |
| 241 *) | |
| 242 # VOID | |
| 243 ;; | |
| 244 esac | |
| 245 _cds="$2" | |
| 246 if [ -z "${_cds}" ]; then | |
| 247 echo "ERROR: no child dataset given" >&2 | |
| 248 return 2 | |
| 249 fi | |
| 250 _ds="${_pds}/${_cds}" | |
| 251 echo "Resulting new root dataset is \`${_ds}' at mountpoint \`${_pmp}/${_cds}'" | |
|
203
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252 if zfs list -H -o mountpoint -t filesystem "${_ds}" >/dev/null 2>/dev/null; then |
| 73 | 253 echo "ERROR: dataset \`${_ds}' does already exist" >&2 |
| 254 return 1 | |
| 255 fi | |
|
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256 |
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257 # |
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258 # NOTE: For BEs these directory will be *excluded* from the BE |
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259 # |
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260 # /tmp |
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261 # /usr/home |
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262 # /usr/ports |
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263 # /usr/src |
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264 # /var/audit |
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265 # /var/crash |
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266 # /var/log |
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267 # /var/mail |
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268 # /var/tmp |
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269 # |
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270 zfs create ${_zfsopts} ${_zfsnoauto} -o atime=off "${_ds}" |
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271 zfs create ${_zfsopts} ${_zfsnoauto} -o sync=disabled -o setuid=off "${_ds}/tmp" |
|
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272 if [ "${_tiny}" != "extra" ]; then |
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273 if [ "${_tiny}" = "yes" ]; then |
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274 zfs create ${_zfsopts} -o canmount=off "${_ds}/usr" |
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275 else |
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276 zfs create ${_zfsopts} ${_zfsnoauto} "${_ds}/usr" |
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277 fi |
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278 zfs create ${_zfsopts} ${_zfsnoauto} -o setuid=off "${_ds}/usr/home" |
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279 zfs create ${_zfsopts} ${_zfsnoauto} "${_ds}/usr/local" |
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280 fi |
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281 if [ \( "${_tiny}" = "yes" \) -o \( "${_tiny}" = "extra" \) ]; then |
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282 zfs create ${_zfsopts} -o canmount=off "${_ds}/var" |
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283 else |
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284 zfs create ${_zfsopts} ${_zfsnoauto} "${_ds}/var" |
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285 fi |
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286 if [ "${_tiny}" != "extra" ]; then |
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287 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off "${_ds}/var/audit" |
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288 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off "${_ds}/var/cache" |
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289 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off -o primarycache=metadata -o compression=off "${_ds}/var/cache/pkg" |
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290 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off -o compression=off "${_ds}/var/crash" |
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291 fi |
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292 if [ "$_fbsdupdate" = "yes" ]; then |
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293 if [ \( "${_tiny}" = "yes" \) -o \( "${_tiny}" = "extra" \) ]; then |
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294 zfs create ${_zfsopts} -o canmount=off -o exec=off -o setuid=off "${_ds}/var/db" |
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295 else |
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296 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off "${_ds}/var/db" |
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297 fi |
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298 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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299 fi |
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300 zfs create ${_zfsopts} ${_zfsnoauto} ${_varempty_ro} -o exec=off -o setuid=off "${_ds}/var/empty" |
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301 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off -o primarycache=metadata "${_ds}/var/log" |
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302 zfs create ${_zfsopts} ${_zfsnoauto} -o exec=off -o setuid=off -o atime=on "${_ds}/var/mail" |
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303 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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304 zfs create ${_zfsopts} ${_zfsnoauto} -o sync=disabled -o setuid=off "${_ds}/var/tmp" |
| 73 | 305 } |
| 306 | |
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307 |
| 73 | 308 # |
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309 # "populate" -- populate the datasets with content from a FreeBSD base.txz |
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310 # |
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311 # command_populate mountpoint basetxz |
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312 # |
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313 command_populate() { |
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314 # MOUNTPOINT -- base.txz |
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315 local _mp _basetxz |
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316 |
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317 _mp="$1" |
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318 _basetxz="$2" |
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319 |
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320 if [ -z "${_mp}" ]; then |
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321 echo "ERROR: no mountpoint given" >&2 |
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322 return 2 |
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323 fi |
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324 if [ -z "${_basetxz}" ]; then |
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325 echo "ERROR: no base.txz given" >&2 |
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326 return 2 |
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327 fi |
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328 if [ ! -d "${_mp}" ]; then |
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329 echo "ERROR: mountpoint \`${_mp}' does not exist" >&2 |
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330 return 1 |
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331 fi |
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332 if [ ! -r "${_basetxz}" ]; then |
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333 echo "ERROR: file \`${_basetxz}' is not readable" >&2 |
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334 return 1 |
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335 fi |
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336 |
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337 # |
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338 # Handle /var/empty separately later: could be already there and |
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339 # mounted read-only. |
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340 # |
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341 tar -C "${_mp}" --exclude=./var/empty -xJp -f "${_basetxz}" || { echo "ERROR: tar encountered errors" >&2; return 1; } |
|
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342 if [ -d "${_mp}/var/empty" ]; then |
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343 # |
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344 # If /var/empty exists already try to extract with changing the |
|
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345 # flags (e.g. `schg'). But be ignore errors here. |
|
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346 # |
|
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347 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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348 else |
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349 # Just extract /var/empty normally |
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350 tar -C "${_mp}" -xJp -f "${_basetxz}" ./var/empty || { echo "ERROR: tar encountered errors" >&2; return 1; } |
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351 fi |
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352 |
|
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353 find "${_mp}/boot" -type f -delete |
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354 } |
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355 |
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356 |
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357 # |
|
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358 # "hostid" -- print a proposal for hostid/hostuuid settings in a jail |
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359 # |
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360 # command_hostid |
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361 # |
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362 command_hostid() { |
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363 # |
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364 # hostid and hostuuid should be set (at least for consistency ressons) |
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365 # in vnet jails (see /etc/rc.d/hostid and /etc/rc.d/hostid_save). |
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366 # They can be set in the jail.conf. |
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367 # Print one here that can be pasted into the jail.conf if needed. |
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368 # |
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369 # hostid and hostuuid for non-vnet jails are inherited from the parent/host. |
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370 # |
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371 # See also /etc/rc.d/hostid and /etc/rc.d/hostid_save. |
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372 # |
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373 local _new_hostuuid _new_hostid |
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374 _new_hostuuid="$(uuidgen)" |
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375 _new_hostid="$(echo -n ${_new_hostuuid} | /sbin/md5)" |
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376 _new_hostid="0x${_new_hostid%%????????????????????????}" |
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377 |
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378 echo "Proposed hostuuid/hostid:" |
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379 echo " host.hostuuid = \"${_new_hostuuid}\";" |
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380 echo " host.hostid = $((_new_hostid));" |
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381 #echo " host.hostid = ${_new_hostid};" |
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382 } |
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383 |
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384 |
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385 # |
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386 # "configure" -- configure the mountpoint |
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387 # |
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388 # command_configure mountpoint |
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389 # |
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390 command_configure() { |
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391 # mountpoint |
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392 local _mp |
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393 local _opt_devfs |
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394 |
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395 local _pcl _umount_devfs |
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396 |
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397 _umount_devfs="" |
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398 |
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399 _opt_devfs="" |
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400 while getopts "d" _opt ; do |
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401 case ${_opt} in |
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402 d) |
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403 _opt_devfs="yes" |
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404 ;; |
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405 \?) |
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406 return 2; |
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407 ;; |
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408 *) |
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409 echo "ERROR: option handling failed" 1>&2 |
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410 return 2 |
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411 ;; |
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412 esac |
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413 done |
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414 shift $((OPTIND-1)) |
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415 OPTIND=1 |
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416 |
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417 _mp="$1" |
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418 |
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419 if [ -z "${_mp}" ]; then |
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420 echo "ERROR: no mountpoint given" >&2 |
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421 return 2 |
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422 fi |
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423 if [ ! -d "${_mp}" ]; then |
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424 echo "ERROR: mountpoint \`${_mp}' does not exist" >&2 |
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425 return 1 |
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426 fi |
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427 |
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428 if [ -c "${_mp}/dev/null" ]; then |
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429 if [ "${_opt_devfs}" = "yes" ]; then |
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430 echo "WARNING: devfs is already mounted - mounting skipped" |
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431 fi |
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432 else |
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433 if [ "${_opt_devfs}" = "yes" ]; then |
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434 echo "Mounting devfs" |
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435 mount -t devfs devfs "${_mp}/dev" |
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436 _umount_devfs="yes" |
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437 else |
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438 echo "ERROR: a working devfs is needed at \`{_mp}/dev' (use \`-d')" >&2 |
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439 return 1 |
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440 fi |
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441 fi |
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442 |
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443 # Deactive the by default empty root password |
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444 pw -R "${_mp}" usermod -w no -n root |
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445 |
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229
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446 if [ -f "${_mp}/etc/defaults/rc.conf" ]; then |
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447 |
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448 sysrc -R "${_mp}" sendmail_enable=NONE |
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449 sysrc -R "${_mp}" clear_tmp_enable=YES |
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450 sysrc -R "${_mp}" clear_tmp_X=NO |
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451 sysrc -R "${_mp}" syslogd_flags=-ss |
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452 sysrc -R "${_mp}" bsdstats_enable=NO # no automatic BSD stats when booting |
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453 else |
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454 echo "WARNING: No \"${_mp}/etc/defaults/rc.conf\": not configuring \"rc.conf\"" |
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455 fi |
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456 |
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457 if [ -f "${_mp}/usr/share/zoneinfo/Europe/Berlin" ]; then |
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458 # Timezone to CET |
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459 if [ ! -f "${_mp}/etc/localtime" ]; then |
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460 echo "Setting timezone to Europe/Berlin" |
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461 # Handle thin jails automatically (but check expectations very strictly) |
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462 if [ \( -L "${_mp}/etc" \) -a \( "$(readlink "${_mp}/etc")" = "skeleton/etc" \) ]; then |
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463 ln -s ../../usr/share/zoneinfo/Europe/Berlin "${_mp}/etc/localtime" |
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464 else |
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465 ln -s ../usr/share/zoneinfo/Europe/Berlin "${_mp}/etc/localtime" |
|
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466 fi |
|
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467 echo "Europe/Berlin" > "${_mp}/var/db/zoneinfo" |
|
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468 else |
|
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469 echo "WARNING: \"${_mp}/etc/localtime\" exists already -- not changed" |
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470 fi |
|
222
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471 else |
|
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472 echo "WARNING: No timezone data file found at \"${_mp}/usr/share/zoneinfo/Europe/Berlin\": skipping timezone setup" |
|
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473 fi |
|
221
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474 |
|
224
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475 # resolv.conf |
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476 if [ ! -f "${_mp}/etc/resolv.conf" ]; then |
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477 echo "Copying the host's resolv.conf into the jail" |
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478 cp -p /etc/resolv.conf "${_mp}/etc/resolv.conf" |
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479 else |
|
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480 echo "WARNING: \"${_mp}/etc/resolv.conf\" exists already -- not changed" |
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481 fi |
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482 |
|
225
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483 # Call newaliases within the jail |
|
227
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484 echo "Calling \"newaliases\"" |
|
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485 chroot "${_mp}" /usr/bin/newaliases |
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486 |
|
228
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487 _pcl="${_mp}/etc/periodic.conf.local" |
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488 if [ ! -f "${_pcl}" ]; then |
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489 echo "Adjusting periodic.conf.local" |
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490 echo "daily_ntpd_leapfile_enable=\"NO\"" > "${_pcl}" |
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491 echo "daily_status_zfs_zpool_list_enable=\"NO\"" >> "${_pcl}" |
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492 echo "daily_status_disks_enable=\"NO\"" >> "${_pcl}" |
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493 echo "daily_status_uptime_enable=\"NO\"" >> "${_pcl}" |
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494 |
|
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495 echo "security_status_chkmounts_enable=\"NO\"" >> "${_pcl}" |
|
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496 |
|
228
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497 else |
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498 echo "WARNING: \"${_pcl}\" exists already -- not changed" |
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499 fi |
|
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500 |
|
226
73f2436fdf86
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501 command_hostid |
|
328
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502 |
|
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503 if [ "${_umount_devfs}" = "yes" ]; then |
|
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504 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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|
505 umount "${_mp}/dev" |
|
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506 fi |
|
219
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507 } |
|
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508 |
|
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|
509 |
|
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510 # |
|
77
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511 # "copy" -- ZFS copy of datasets |
|
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512 # |
|
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513 # command_copy source-dataset destination-dataset |
|
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514 # |
|
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|
515 command_copy() { |
|
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516 # source dataset -- destination dataset |
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|
517 local _source _dest |
|
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518 # dynamic ZFS options -- ZFS copy options |
|
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519 local _zfsopts _zfscopyopts |
|
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|
520 |
|
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521 _zfsopts="" |
|
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|
522 _zfscopyopts="" |
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523 while getopts "ru" _opt ; do |
|
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|
524 case ${_opt} in |
|
178
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525 r) |
|
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526 # Use raw datasets |
|
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527 _zfscopyopts="-Lec" |
|
179
6c144aca8ac5
FIX: Proper case-switch termination
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|
528 ;; |
|
77
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|
529 u) |
|
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530 # do not mount newly created datasets |
|
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|
531 _zfsopts="${_zfsopts} -u" |
|
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|
532 ;; |
|
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|
533 \?|:) |
|
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534 return 2; |
|
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|
535 ;; |
|
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|
536 esac |
|
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|
537 done |
|
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|
538 shift $((OPTIND-1)) |
|
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|
539 OPTIND=1 |
|
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|
540 |
|
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|
541 _source="$1" |
|
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|
542 if [ -z "${_source}" ]; then |
|
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Implemented a "copy" command to employ zfs send/receive for recursively copying jail datasets
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|
543 echo "ERROR: no source dataset given" >&2 |
|
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|
544 return 2 |
|
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|
545 fi |
|
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|
546 _dest="$2" |
|
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|
547 if [ -z "${_dest}" ]; then |
|
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|
548 echo "ERROR: no source dataset given" >&2 |
|
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549 return 2 |
|
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Implemented a "copy" command to employ zfs send/receive for recursively copying jail datasets
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550 fi |
|
178
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551 zfs send -R ${_zfscopyopts} -n -v "${_source}" || { echo "ERROR: ZFS operation failed in no-op mode" >&2; return 1; } |
|
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552 zfs send -R ${_zfscopyopts} "${_source}" | zfs receive ${_zfsopts} "${_dest}" || { echo "ERROR: ZFS operation failed" >&2; return 1; } |
|
77
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|
553 } |
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|
554 |
|
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|
555 |
|
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|
556 # |
| 73 | 557 # "privs" -- adjust privileges |
| 558 # | |
| 559 # To be used when all ZFS datasets are mounted. | |
| 560 # | |
| 561 command_privs() { | |
| 562 # mountpoint | |
|
162
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563 local _mp _d _veds _get _vestatus |
| 73 | 564 |
| 565 _mp="$1" | |
| 566 if [ -z "${_mp}" ]; then | |
| 567 echo "ERROR: no mountpoint given" >&2 | |
| 568 return 2 | |
| 569 fi | |
| 570 if [ ! -d "${_mp}" ]; then | |
| 571 echo "ERROR: directory \`${_mp}' does not exist" >&2 | |
| 572 return 1 | |
| 573 fi | |
| 574 for _d in tmp var/tmp ; do | |
| 575 chmod 01777 "${_mp}/${_d}" | |
| 576 done | |
| 577 chown root:mail "${_mp}/var/mail" | |
| 578 chmod 0775 "${_mp}/var/mail" | |
|
162
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579 |
|
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580 # |
|
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581 # Handle <mountpoint>/var/empty specially: |
|
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582 # make it writeable temporarily if it is mounted read-only: |
|
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583 # |
|
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584 _vestatus="" |
|
196
a4fd3bcbbf1c
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585 _veds="$(_get_dataset_for_varempty "${_mp}")" |
|
162
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|
586 if [ $? -eq 0 ]; then |
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203
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587 _vestatus=$(zfs list -H -o readonly -t filesystem ${_veds} 2>/dev/null) || { echo "ERROR: cannot determine readonly status of ${_mp}/var/empty" >&2; return 1; } |
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588 if [ "${_vestatus}" = "on" ]; then |
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589 zfs set readonly=off ${_veds} 1> /dev/null || { echo "ERROR: cannot reset readonly-status of ${_mp}/var/empty" >&2; return 1; } |
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590 fi |
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591 fi |
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592 # Set the access rights and the file flags as given in mtree |
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593 chmod 0555 "${_mp}/var/empty" || { echo "WARNING: Cannot chmod on var/empty" >&2; } |
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594 chflags schg "${_mp}/var/empty" || { echo "WARNING: Cannot chflags on var/empty" >&2; } |
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595 # Reset the read-only status of the mountpoint as it was before |
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596 if [ "${_vestatus}" = "on" ]; then |
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597 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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598 fi |
| 73 | 599 } |
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600 |
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74
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601 |
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602 # |
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603 # Global option handling |
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604 # |
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605 while getopts "Vh" _opt ; do |
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606 case ${_opt} in |
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607 V) |
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608 printf 'fjail v%s (rv:%s)\n' "${VERSION}" '@@HGREVISION@@' |
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609 exit 0 |
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610 ;; |
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611 h) |
| 75 | 612 echo "${USAGE}" |
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613 exit 0 |
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614 ;; |
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80
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615 \?) |
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616 exit 2; |
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617 ;; |
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618 *) |
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619 echo "ERROR: option handling failed" >&2 |
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620 exit 2 |
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621 ;; |
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622 esac |
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623 done |
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624 |
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625 # |
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626 # Reset the Shell's option handling system to prepare for handling |
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627 # command-local options. |
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628 # |
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629 shift $((OPTIND-1)) |
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630 OPTIND=1 |
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631 |
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632 test $# -gt 0 || { echo "ERROR: no command given" >&2; exit 2; } |
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633 |
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634 command="$1" |
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635 shift |
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636 |
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637 case "${command}" in |
| 73 | 638 datasets) |
| 639 command_datasets "$@" | |
| 640 ;; | |
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641 mount) |
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642 exec "$(dirname $0)/fzfs" mount "$@" |
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643 ;; |
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644 umount|unmount) |
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645 exec "$(dirname $0)/fzfs" umount "$@" |
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646 ;; |
| 73 | 647 privs) |
| 648 command_privs "$@" | |
| 649 ;; | |
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650 populate) |
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651 command_populate "$@" |
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652 ;; |
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653 configure) |
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654 command_configure "$@" |
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655 ;; |
|
226
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656 hostid) |
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657 command_hostid "$@" |
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658 ;; |
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659 copy) |
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660 command_copy "$@" |
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661 ;; |
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662 *) |
|
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663 echo "ERROR: unknown command \`${command}'" >&2 |
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664 exit 2 |
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665 ;; |
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666 esac |