mirror of
https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-11-20 02:09:24 +01:00
122 lines
4.4 KiB
Bash
122 lines
4.4 KiB
Bash
#!/bin/sh -e
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# checking debian-tor account
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uid=`getent passwd debian-tor | cut -d ":" -f 3`
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home=`getent passwd debian-tor | cut -d ":" -f 6`
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# if there is the uid the account is there and we can do
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# the sanit(ar)y checks otherwise we can safely create it.
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if [ "$uid" ]; then
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if [ "$home" = "/var/lib/tor" ]; then
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:
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#echo "debian-tor homedir check: ok"
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else
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echo "ERROR: debian-tor account has an unexpected home directory!"
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echo "It should be '/var/lib/tor', but it is '$home'."
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echo "Removing the debian-tor user might fix this, but the question"
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echo "remains how you got into this mess to begin with."
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exit 1
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fi
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else
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adduser --quiet \
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--system \
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--disabled-password \
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--home /var/lib/tor \
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--no-create-home \
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--shell /bin/bash \
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--group \
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debian-tor
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fi
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for i in lib run log; do
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if ! [ -d "/var/$i/tor" ]; then
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echo "Something or somebody made /var/$i/tor disappear."
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echo "Creating one for you again."
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mkdir "/var/$i/tor"
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fi
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done
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find /var/lib/tor \( \( ! -user debian-tor \) -o \( ! -group debian-tor \) \) -print0 | xargs -0 --no-run-if-empty chown debian-tor:debian-tor
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find /var/lib/tor -type d -print0 | xargs -0 --no-run-if-empty chmod 02700
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find /var/lib/tor -type f -print0 | xargs -0 --no-run-if-empty chmod 00600
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find /var/run/tor \( \( ! -user debian-tor \) -o \( ! -group debian-tor \) \) -print0 | xargs -0 --no-run-if-empty chown debian-tor:debian-tor
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find /var/run/tor -type d -print0 | xargs -0 --no-run-if-empty chmod 02750
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find /var/run/tor -type f -print0 | xargs -0 --no-run-if-empty chmod 00600
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find /var/log/tor \( \( ! -user debian-tor \) -o \( ! -group adm \) \) -print0 | xargs -0 --no-run-if-empty chown debian-tor:adm
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find /var/log/tor -type d -print0 | xargs -0 --no-run-if-empty chmod 02750
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find /var/log/tor -type f -print0 | xargs -0 --no-run-if-empty chmod 00640
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move_away_keys=0
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if [ "$1" = "configure" ] &&
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[ -e /var/lib/tor/keys ] &&
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[ ! -z "$2" ]; then
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if dpkg --compare-versions "$2" lt 0.1.2.19-2; then
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move_away_keys=1
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elif dpkg --compare-versions "$2" gt 0.2.0 &&
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dpkg --compare-versions "$2" lt 0.2.0.26-rc; then
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move_away_keys=1
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fi
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fi
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if [ "$move_away_keys" = "1" ]; then
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echo "Retiring possibly compromised keys. See /usr/share/doc/tor/NEWS.Debian.gz"
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echo "and /var/lib/tor/keys/moved-away-by-tor-package/README.REALLY for"
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echo "further information."
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if ! [ -d /var/lib/tor/keys/moved-away-by-tor-package ]; then
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mkdir /var/lib/tor/keys/moved-away-by-tor-package
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cat > /var/lib/tor/keys/moved-away-by-tor-package/README.REALLY << EOF
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It has been discovered that the random number generator in Debian's
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openssl package is predictable. This is caused by an incorrect
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Debian-specific change to the openssl package (CVE-2008-0166). As a
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result, cryptographic key material may be guessable.
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See Debian Security Advisory number 1571 (DSA-1571) for more information:
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http://lists.debian.org/debian-security-announce/2008/msg00152.html
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The Debian package for Tor has moved away the onion keys upon package
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upgrade, and it will have moved away your identity key if it was created
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in the affected timeframe. There is no sure way to automatically tell
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if your key was created with an affected openssl library, so this move
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is done unconditionally.
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If you have restarted Tor since this change (and the package probably
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did that for you already unless you configured your system differently)
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then the Tor daemon already created new keys for itself and in all
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likelyhood is already working just fine with new keys.
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If you are absolutely certain that your identity key was created with
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a non-affected version of openssl and for some reason you have to retain
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the old identity, then you can move back the copy of secret_id_key to
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/var/lib/tor/keys. Do not move back the onion keys, they were created
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only recently since they are temporary keys with a lifetime of only a few
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days anyway.
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Sincerely,
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Peter Palfrader, Tue, 13 May 2008 13:32:23 +0200
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EOF
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fi
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for f in secret_onion_key secret_onion_key.old; do
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if [ -e /var/lib/tor/keys/"$f" ]; then
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mv -v /var/lib/tor/keys/"$f" /var/lib/tor/keys/moved-away-by-tor-package/"$f"
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fi
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done
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if [ -e /var/lib/tor/keys/secret_id_key ]; then
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id_mtime=`/usr/bin/stat -c %Y /var/lib/tor/keys/secret_id_key`
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sept=`date -d '2006-09-10' +%s`
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if [ "$id_mtime" -gt "$sept" ] ; then
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mv -v /var/lib/tor/keys/secret_id_key /var/lib/tor/keys/moved-away-by-tor-package/secret_id_key
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fi
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fi
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fi
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#DEBHELPER#
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exit 0
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