annotate debian/dropbear.postinst @ 1902:4a6725ac957c

Revert "Don't include sk keys at all in KEX list" This reverts git commit f972813ecdc7bb981d25b5a63638bd158f1c8e72. The sk algorithms need to remain in the sigalgs list so that they are included in the server-sig-algs ext-info message sent by the server. RFC8308 for server-sig-algs requires that all algorithms are listed (though OpenSSH client 8.4p1 tested doesn't require that)
author Matt Johnston <matt@ucc.asn.au>
date Thu, 24 Mar 2022 13:42:08 +0800
parents 7fc4ba3c1cbb
children
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1 #!/bin/sh
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2 set -e
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3
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4 test "$1" = 'configure' || exit 0
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5
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6 if test ! -e /etc/dropbear/dropbear_rsa_host_key; then
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7 if test -f /etc/ssh/ssh_host_rsa_key; then
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8 echo "Converting existing OpenSSH RSA host key to Dropbear format."
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9 /usr/lib/dropbear/dropbearconvert openssh dropbear \
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10 /etc/ssh/ssh_host_rsa_key /etc/dropbear/dropbear_rsa_host_key
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11 else
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12 echo "Generating Dropbear RSA key. Please wait."
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13 dropbearkey -t rsa -f /etc/dropbear/dropbear_rsa_host_key
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14 fi
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15 fi
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16 if test ! -e /etc/dropbear/dropbear_dss_host_key; then
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17 if test -f /etc/ssh/ssh_host_dsa_key; then
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18 echo "Converting existing OpenSSH RSA host key to Dropbear format."
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19 /usr/lib/dropbear/dropbearconvert openssh dropbear \
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20 /etc/ssh/ssh_host_dsa_key /etc/dropbear/dropbear_dss_host_key
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21 else
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22 echo "Generating Dropbear DSS key. Please wait."
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23 dropbearkey -t dss -f /etc/dropbear/dropbear_dss_host_key
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24 fi
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25 fi
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26 if test ! -s /etc/default/dropbear; then
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27 # check whether OpenSSH seems to be installed.
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28 if test -x /usr/sbin/sshd; then
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29 cat <<EOT
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30 OpenSSH appears to be installed. Setting /etc/default/dropbear so that
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31 Dropbear will not start by default. Edit this file to change this behaviour.
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32
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33 EOT
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34 cat >>/etc/default/dropbear <<EOT
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35 # disabled because OpenSSH is installed
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36 # change to NO_START=0 to enable Dropbear
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37 NO_START=1
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38
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39 EOT
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40 fi
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41 cat >>/etc/default/dropbear <<EOT
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42 # the TCP port that Dropbear listens on
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43 DROPBEAR_PORT=22
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44
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45 # any additional arguments for Dropbear
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46 DROPBEAR_EXTRA_ARGS=
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47
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48 # specify an optional banner file containing a message to be
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49 # sent to clients before they connect, such as "/etc/issue.net"
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50 DROPBEAR_BANNER=""
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51
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52 # RSA hostkey file (default: /etc/dropbear/dropbear_rsa_host_key)
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53 #DROPBEAR_RSAKEY="/etc/dropbear/dropbear_rsa_host_key"
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54
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55 # DSS hostkey file (default: /etc/dropbear/dropbear_dss_host_key)
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56 #DROPBEAR_DSSKEY="/etc/dropbear/dropbear_dss_host_key"
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57
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58 # Receive window size - this is a tradeoff between memory and
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59 # network performance
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60 DROPBEAR_RECEIVE_WINDOW=65536
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61 EOT
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62 fi
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63
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64 if test -x /etc/init.d/dropbear; then
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65 update-rc.d dropbear defaults >/dev/null
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66 if test -x /usr/sbin/invoke-rc.d; then
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67 invoke-rc.d dropbear restart
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68 else
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69 /etc/init.d/dropbear restart
70
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70 fi
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71 fi
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72
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73 if test -n "$2" && dpkg --compare-versions "$2" lt '0.50-4' &&
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74 update-service --check dropbear 2>/dev/null; then
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75 update-service --remove /etc/dropbear 2>/dev/null || :
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76 sleep 6
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77 rm -rf /var/run/dropbear /var/run/dropbear.log
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78 update-service --add /etc/dropbear || :
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79 fi