| 1 | #!/bin/bash |
| 2 | # |
| 3 | # Richard Kettlewell 2011-06-18 |
| 4 | # |
| 5 | # This file is part of secnet. |
| 6 | # See README for full list of copyright holders. |
| 7 | # |
| 8 | # secnet is free software; you can redistribute it and/or modify it |
| 9 | # under the terms of the GNU General Public License as published by |
| 10 | # the Free Software Foundation; either version 3 of the License, or |
| 11 | # (at your option) any later version. |
| 12 | # |
| 13 | # secnet is distributed in the hope that it will be useful, but |
| 14 | # WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | # General Public License for more details. |
| 17 | # |
| 18 | # You should have received a copy of the GNU General Public License |
| 19 | # version 3 along with secnet; if not, see |
| 20 | # https://www.gnu.org/licenses/gpl.html. |
| 21 | # |
| 22 | set -e |
| 23 | |
| 24 | group=${group:-secnet} |
| 25 | user=${user:-secnet} |
| 26 | |
| 27 | # pick ID1 ID2 ... IDn |
| 28 | # Echoes an ID matching none of ID1..IDn |
| 29 | pick() { |
| 30 | local n |
| 31 | n=250 # better not choose 0! |
| 32 | while :; do |
| 33 | ok=true |
| 34 | for k in "$@"; do |
| 35 | if [ $n = $k ]; then |
| 36 | ok=false |
| 37 | break |
| 38 | fi |
| 39 | done |
| 40 | if $ok; then |
| 41 | echo $n |
| 42 | return |
| 43 | fi |
| 44 | n=$((1+$n)) |
| 45 | done |
| 46 | } |
| 47 | |
| 48 | if dscl . -read /Groups/$group >/dev/null 2>&1; then |
| 49 | : |
| 50 | else |
| 51 | gids=$(dscl . -list /Groups PrimaryGroupID|awk '{print $2}') |
| 52 | gid=$(pick $gids) |
| 53 | dscl . -create /Groups/$group |
| 54 | dscl . -create /Groups/$group PrimaryGroupID $gid |
| 55 | dscl . -create /Groups/$group Password \* |
| 56 | fi |
| 57 | |
| 58 | if dscl . -read /Users/$user >/dev/null 2>&1; then |
| 59 | : |
| 60 | else |
| 61 | uids=$(dscl . -list /Users UniqueID|awk '{print $2}') |
| 62 | uid=$(pick $uids) |
| 63 | gid=$(dscl . -read /Groups/$group PrimaryGroupID | awk '{print $2}') |
| 64 | dscl . -create /Users/$user |
| 65 | dscl . -create /Users/$user UniqueID $uid |
| 66 | dscl . -create /Users/$user UserShell /usr/bin/false |
| 67 | dscl . -create /Users/$user RealName 'secnet' |
| 68 | dscl . -create /Users/$user NFSHomeDirectory /var/empty |
| 69 | dscl . -create /Users/$user PrimaryGroupID $gid |
| 70 | dscl . -create /Users/$user Password \* |
| 71 | fi |
| 72 | |
| 73 | cp uk.org.greenend.secnet.plist /Library/LaunchDaemons/. |
| 74 | launchctl load /Library/LaunchDaemons |
| 75 | echo "To start secnet:" |
| 76 | echo " sudo launchctl start uk.org.greenend.secnet" |
| 77 | echo |
| 78 | echo "To stop secnet:" |
| 79 | echo " sudo launchctl stop uk.org.greenend.secnet" |
| 80 | echo |
| 81 | echo "To uninstall:" |
| 82 | echo " sudo launchctl unload /Library/LaunchDaemons/uk.org.greenend.secnet.plist" |
| 83 | echo " sudo rm -f /Library/LaunchDaemons/uk.org.greenend.secnet.plist" |