Imported using git-ubuntu import.
Changelog parent: aa7b103571
New changelog entries:
* Add two new hooks for Ubuntu Touch to setup sensible /etc/passwd,
/etc/shadow, /etc/group and /etc/gshadow PRIOR to package installation
to guarantee user/group ordering on the image and then to check for any
unexpected change to those files. (LP: #1332538)
Any change to either the initial set of users and groups or to the
post-package-install set will now be fatal to the image and will require
a manual update of the hardcoded user/group list contained in this new
chroot_early hook.
* Bump dependency on live-build accordingly.
* Update the setup_user hook to also take care of gshadow.
impish
2.245
Stéphane Graber
10 years ago
committed by
usd-importer
parent
aa7b103571
commit
d803954231
@ -0,0 +1,251 @@
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#!/bin/sh -eu
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# Known good post-debootstrap values
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passwd_bootstrap="9ebb1c3da5b0ad8f1d366528b32c97cb"
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shadow_bootstrap="1c562aa2ed2f443b9151953e800eca16"
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group_bootstrap="60cd81599d39db5d624e63c8c18d4a5e"
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gshadow_bootstrap="3819432fb99fe6b8f38410c58d503de1"
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# Current post-debootstrap values
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passwd_hash=$(set -- $(md5sum /etc/passwd) && echo $1)
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shadow_hash=$(set -- $(cat /etc/shadow | sed "s/:.*:0:99999:/:0:99999:/g" | md5sum) && echo $1)
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group_hash=$(set -- $(md5sum /etc/group) && echo $1)
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gshadow_hash=$(set -- $(md5sum /etc/gshadow) && echo $1)
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# /etc/passwd
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if [ "$passwd_bootstrap" = "$passwd_hash" ]; then
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cat > /etc/passwd <<EOF
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root:x:0:0:root:/root:/bin/bash
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daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
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bin:x:2:2:bin:/bin:/usr/sbin/nologin
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sys:x:3:3:sys:/dev:/usr/sbin/nologin
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sync:x:4:65534:sync:/bin:/bin/sync
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games:x:5:60:games:/usr/games:/usr/sbin/nologin
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man:x:6:12:man:/var/cache/man:/usr/sbin/nologin
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lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin
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mail:x:8:8:mail:/var/mail:/usr/sbin/nologin
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news:x:9:9:news:/var/spool/news:/usr/sbin/nologin
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uucp:x:10:10:uucp:/var/spool/uucp:/usr/sbin/nologin
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proxy:x:13:13:proxy:/bin:/usr/sbin/nologin
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www-data:x:33:33:www-data:/var/www:/usr/sbin/nologin
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backup:x:34:34:backup:/var/backups:/usr/sbin/nologin
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list:x:38:38:Mailing List Manager:/var/list:/usr/sbin/nologin
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irc:x:39:39:ircd:/var/run/ircd:/usr/sbin/nologin
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gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/usr/sbin/nologin
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nobody:x:65534:65534:nobody:/nonexistent:/usr/sbin/nologin
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syslog:x:100:103::/home/syslog:/bin/false
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usermetrics:x:101:104:User Metrics:/var/lib/usermetrics:/bin/false
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messagebus:x:102:106::/var/run/dbus:/bin/false
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clickpkg:x:103:107::/nonexistent:/bin/false
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dnsmasq:x:104:65534:dnsmasq,,,:/var/lib/misc:/bin/false
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sshd:x:105:65534::/var/run/sshd:/usr/sbin/nologin
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rtkit:x:106:109:RealtimeKit,,,:/proc:/bin/false
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whoopsie:x:107:110::/nonexistent:/bin/false
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lightdm:x:108:111:Light Display Manager:/var/lib/lightdm:/bin/false
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lxc-dnsmasq:x:109:114:LXC dnsmasq,,,:/var/lib/lxc:/bin/false
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pulse:x:110:115:PulseAudio daemon,,,:/var/run/pulse:/bin/false
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system:x:1000:1000:system,,,:/nonexistent:/bin/false
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radio:x:1001:1001:radio,,,:/nonexistent:/bin/false
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EOF
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else
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echo "/etc/passwd post-debootstrap hash doesn't match record" >&2
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exit 1
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fi
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# /etc/shadow
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if [ "$shadow_bootstrap" = "$shadow_hash" ]; then
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cat > /etc/shadow <<EOF
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root:*:16329:0:99999:7:::
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daemon:*:16329:0:99999:7:::
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bin:*:16329:0:99999:7:::
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sys:*:16329:0:99999:7:::
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sync:*:16329:0:99999:7:::
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games:*:16329:0:99999:7:::
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man:*:16329:0:99999:7:::
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lp:*:16329:0:99999:7:::
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mail:*:16329:0:99999:7:::
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news:*:16329:0:99999:7:::
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uucp:*:16329:0:99999:7:::
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proxy:*:16329:0:99999:7:::
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www-data:*:16329:0:99999:7:::
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backup:*:16329:0:99999:7:::
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list:*:16329:0:99999:7:::
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irc:*:16329:0:99999:7:::
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gnats:*:16329:0:99999:7:::
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nobody:*:16329:0:99999:7:::
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syslog:*:16329:0:99999:7:::
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usermetrics:*:16329:0:99999:7:::
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messagebus:*:16329:0:99999:7:::
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clickpkg:*:16329:0:99999:7:::
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dnsmasq:*:16329:0:99999:7:::
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sshd:*:16329:0:99999:7:::
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rtkit:*:16329:0:99999:7:::
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whoopsie:*:16329:0:99999:7:::
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lightdm:*:16329:0:99999:7:::
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lxc-dnsmasq:!:16329:0:99999:7:::
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pulse:*:16329:0:99999:7:::
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system:!:16329:0:99999:7:::
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radio:!:16329:0:99999:7:::
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EOF
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else
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echo "/etc/shadow post-debootstrap hash doesn't match record" >&2
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exit 1
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fi
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# /etc/group
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if [ "$group_bootstrap" = "$group_hash" ]; then
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cat > /etc/group <<EOF
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root:x:0:
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daemon:x:1:
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bin:x:2:
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sys:x:3:
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adm:x:4:syslog
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tty:x:5:
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disk:x:6:
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lp:x:7:
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mail:x:8:
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news:x:9:
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uucp:x:10:
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man:x:12:
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proxy:x:13:
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kmem:x:15:
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dialout:x:20:
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fax:x:21:
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voice:x:22:
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cdrom:x:24:
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floppy:x:25:
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tape:x:26:
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sudo:x:27:
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audio:x:1005:
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dip:x:30:
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www-data:x:33:
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backup:x:34:
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operator:x:37:
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list:x:38:
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irc:x:39:
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src:x:40:
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gnats:x:41:
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shadow:x:42:
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utmp:x:43:
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video:x:44:
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sasl:x:45:
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plugdev:x:46:
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staff:x:50:
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games:x:60:
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users:x:100:
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nogroup:x:65534:
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netdev:x:101:
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crontab:x:102:
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syslog:x:103:
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usermetrics:x:104:
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systemd-journal:x:105:
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messagebus:x:106:
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clickpkg:x:107:
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ssh:x:108:
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rtkit:x:109:
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whoopsie:x:110:
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lightdm:x:111:
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nopasswdlogin:x:112:
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bluetooth:x:1002:
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lxc-dnsmasq:x:114:
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pulse:x:115:
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pulse-access:x:116:
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system:x:1000:
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radio:x:1001:
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gps:x:1021:
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android_net:x:3003:
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android_net2:x:3004:
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android_net3:x:3002:
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android_graphics:x:1003:
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android_input:x:1004:
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sdcard_rw:x:1015:
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android_media:x:1013:
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android_nvram:x:9997:
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android_cache:x:2001:
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EOF
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else
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echo "/etc/group post-debootstrap hash doesn't match record" >&2
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exit 1
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fi
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# /etc/gshadow
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if [ "$gshadow_bootstrap" = "$gshadow_hash" ]; then
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cat > /etc/gshadow <<EOF
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root:*::
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daemon:*::
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bin:*::
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sys:*::
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adm:*::syslog
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tty:*::
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disk:*::
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lp:*::
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mail:*::
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news:*::
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uucp:*::
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man:*::
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proxy:*::
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kmem:*::
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dialout:*::
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fax:*::
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voice:*::
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cdrom:*::
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floppy:*::
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tape:*::
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sudo:*::
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audio:*::pulse
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dip:*::
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www-data:*::
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backup:*::
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operator:*::
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list:*::
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irc:*::
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src:*::
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gnats:*::
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shadow:*::
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utmp:*::
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video:*::
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sasl:*::
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plugdev:*::
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staff:*::
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games:*::
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users:*::
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nogroup:*::
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netdev:!::
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crontab:!::
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syslog:!::
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usermetrics:!::
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systemd-journal:!::
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messagebus:!::
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clickpkg:!::
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ssh:!::
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rtkit:!::
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whoopsie:!::
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lightdm:!::
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nopasswdlogin:!::
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bluetooth:!::
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lxc-dnsmasq:!::
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pulse:!::
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pulse-access:!::
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system:!::
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radio:!::
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gps:!::
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android_net:!::
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android_net2:!::
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android_net3:!::
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android_graphics:!::
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android_input:!::
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sdcard_rw:!::
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android_media:!::
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android_nvram:!::
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android_cache:!::
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EOF
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else
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echo "/etc/gshadow post-debootstrap hash doesn't match record" >&2
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exit 1
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fi
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# Record the current state for later comparison
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for file in /etc/passwd /etc/shadow /etc/group /etc/gshadow; do
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rm -f ${file}-
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cp ${file} ${file}.orig
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done
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@ -0,0 +1,37 @@
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#!/bin/sh -eu
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passwd_hash=$(set -- $(md5sum /etc/passwd) && echo $1)
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shadow_hash=$(set -- $(cat /etc/shadow | sed "s/:.*:0:99999:/:0:99999:/g" | md5sum) && echo $1)
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group_length=$(cat /etc/group | wc -l)
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gshadow_length=$(cat /etc/gshadow | wc -l)
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passwd_orig_hash=$(set -- $(md5sum /etc/passwd.orig) && echo $1)
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shadow_orig_hash=$(set -- $(cat /etc/shadow.orig | sed "s/:.*:0:99999:/:0:99999:/g" | md5sum) && echo $1)
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group_orig_length=$(cat /etc/group.orig | wc -l)
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gshadow_orig_length=$(cat /etc/gshadow.orig | wc -l)
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if [ "$passwd_hash" != "$passwd_orig_hash" ]; then
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echo "/etc/passwd has changed during setup." >&2
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diff -Nrup /etc/passwd.orig /etc/passwd >&2
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exit 1
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fi
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if [ "$shadow_hash" != "$shadow_orig_hash" ]; then
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echo "/etc/shadow has changed during setup." >&2
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diff -Nrup /etc/shadow.orig /etc/shadow >&2
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exit 1
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fi
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if [ "$group_length" != "$group_orig_length" ]; then
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echo "/etc/group has changed during setup." >&2
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diff -Nrup /etc/group.orig /etc/group >&2
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exit 1
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fi
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if [ "$gshadow_length" != "$gshadow_orig_length" ]; then
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echo "/etc/gshadow has changed during setup." >&2
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diff -Nrup /etc/gshadow.orig /etc/gshadow >&2
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exit 1
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fi
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rm /etc/passwd.orig /etc/shadow.orig /etc/group.orig /etc/gshadow.orig
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