On Mar 30, 2022, at 9:38 AM, Bernhard Bitsch <bbitsch@ipfire.org> wrote:

Hello all,


Am 30.03.2022 um 16:06 schrieb Michael Tremer:

Hello everyone,
Thank you very much for helping me test this.
I decided that we will have to create an emergency core update for this, because it will otherwise break people’s system. We also have a vulnerability in zlib which is being handed around by the press, so that has helped me to make a decision.

I think this is a good solution. Shall we add a warning to backup wiki page? Because in the moment a backup -> reinstall -> restore process leaves an incomplete system.

I also pushed two more patches. One filters out any empty lines because they have quite a damaging effect and it happens easily that they are added to the include list. Secondly, I brought back the existence check which I thought was only there for the globbing mechanism, but also had the small side-effect of filtering out the file list early on which helps keeping tar happy.
Please review those changes and please install the new c166 from testing as soon as the build has finished (I am not sure if you are all on the nightly-builds list to see any notifications).
https://git.ipfire.org/?p=ipfire-2.x.git;a=commitdiff;h=4f0e7f24f293ca10096e616010cfd4417afc157c

The test on empty string should be in the 'while read -r file' loop. The empty lines are in the include files. The outer for loop iterates over the file list.

Regards,
Bernhard

https://git.ipfire.org/?p=ipfire-2.x.git;a=commitdiff;h=b275771fdd10ac7116e5d400dc10d3148df8ac27
Best,
-Michael

On 29 Mar 2022, at 20:21, Bernhard Bitsch <bbitsch@ipfire.org> wrote:

Just checked the blank line problem.
Pattern is empty , file name list is '/' --> no names produced ( with existence check )
Pattern is empty --> produced file name '/' ( without -e check )

Am 29.03.2022 um 20:36 schrieb Bernhard Bitsch:

Hi all,
Am 29.03.2022 um 17:23 schrieb Adolf Belka:

Hi All,

On 29/03/2022 16:22, Michael Tremer wrote:

On 29 Mar 2022, at 15:22, Bernhard Bitsch <bbitsch@ipfire.org> wrote:

Looks like your include.user file contains absolute paths.

That was not the problem but I have corrected that. I would have expected that when the main include and exclude files were made relative that the update script would also have checked for any entries in the include.user and exclude.user files but it looks like it didn't.th

According to the source they are chosen.

Or an empty line maybe?

That turned out to be the problem. There was an empty line after the two lines I had added. You only saw it if you scrolled the pointer down the file in the editor.

Interesting. A blank line should produce nothing.

Removing that blank line removed the line only with a / and the backup then successfully ran and created a backup file containing all the directories expected.

The only thing I found is that there was the following tar error message

tar: Exiting with failure status due to previous errors

The only thing I found in the backup output was several lines such as

tar: /etc/squid/squid.conf.local: Cannot stat: No such file or directory
tar: /etc/squid/squid.conf.pre.local: Cannot stat: No such file or directory

There were seven lines in total like this and the three I checked were files that did not exist on my system. I presume that these are files that should be backed up if present but don't have to be present so that the error messages are nothing to worry about.
There were no error messages when doing the backup via the WUI.

Good find. ;)
Michael's patch removes the test of existence, globbing produces existent file names only. But I suppose there are several full names of files, not existing in each implementation.
Conclusion: Repair the file globbing by the shopt and do the existence check. So all existent files are chosen, that are listed in the include files.
Regards,
Bernhard

The blank line was only on my vm testbed system but as I clone this for any testing activities I will have to check all of my existing vm's to fix this.

Glad we resolved this simply. Sorry for the anxiety.

Regards,

Adolf.

Am 29.03.2022 um 16:14 schrieb Adolf Belka:

Hi All,
This is what I get with the pushd/popd version in place on the same system
-bash-5.1$ sudo /var/ipfire/backup/bin/backup.pl list
etc/group
etc/hosts
etc/hosts.allow
etc/hosts.deny
etc/httpd/server.crt
etc/httpd/server.csr
etc/httpd/server-ecdsa.crt
etc/httpd/server-ecdsa.csr
etc/httpd/server-ecdsa.key
etc/httpd/server.key
etc/ipsec.user.conf
etc/ipsec.user.secrets
etc/logrotate.d
etc/passwd
etc/shadow
etc/ssh/sshd_config
etc/ssh/ssh_host_ecdsa_key
etc/ssh/ssh_host_ecdsa_key.pub
etc/ssh/ssh_host_ed25519_key
etc/ssh/ssh_host_ed25519_key.pub
etc/ssh/ssh_host_rsa_key
etc/ssh/ssh_host_rsa_key.pub
/etc/sudoers
etc/sysconfig/createfiles
etc/sysconfig/firewall.local
etc/sysconfig/lm_sensors
etc/sysconfig/modules
etc/sysconfig/ramdisk
etc/sysconfig/rc
etc/sysconfig/rc.local
etc/unbound
/home/ahb
root/.bash_history
var/ipfire/accounting/settings.conf
var/ipfire/auth/users
var/ipfire/backup/addons/backup
var/ipfire/backup/exclude.user
var/ipfire/backup/include.user
var/ipfire/ca/cacert.pem
var/ipfire/captive/agb.txt
var/ipfire/captive/clients
var/ipfire/captive/coupons
var/ipfire/captive/logo.dat
var/ipfire/captive/settings
var/ipfire/captive/terms.txt
var/ipfire/captive/voucher_out
var/ipfire/certs/hostcert.pem
var/ipfire/certs/hostkey.pem
var/ipfire/certs/phoebevmipseccert.pem
var/ipfire/connscheduler/connscheduler.conf
var/ipfire/crls/cacrl.pem
var/ipfire/cups/cups-browsed.conf
var/ipfire/cups/subscriptions.conf
var/ipfire/ddns/config
var/ipfire/ddns/ddns.conf
var/ipfire/ddns/settings
var/ipfire/dhcp/advoptions
var/ipfire/dhcp/advoptions-list
var/ipfire/dhcpc/dhcpcd.conf
var/ipfire/dhcp/dhcpd.conf
var/ipfire/dhcp/dhcpd.conf.local
var/ipfire/dhcp/enable_blue
var/ipfire/dhcp/enable_green
var/ipfire/dhcp/fixleases
var/ipfire/dhcp/settings
var/ipfire/dma/auth.conf
var/ipfire/dma/dma.conf
var/ipfire/dma/mail.conf
var/ipfire/dns
var/ipfire/dnsforward/config
var/ipfire/dns/settings
var/ipfire/ethernet/aliases
var/ipfire/ethernet/settings
var/ipfire/ethernet/wireless
var/ipfire/extrahd/settings
var/ipfire/firewall
var/ipfire/firewall/config
var/ipfire/firewall/settings
var/ipfire/fwhosts
var/ipfire/isdn/settings
var/ipfire/logging/settings
var/ipfire/mac/settings
var/ipfire/main/firstsetup_ok
var/ipfire/main/gpl_accepted
var/ipfire/main/hostname.conf
var/ipfire/main/hosts
var/ipfire/main/manualpages
var/ipfire/main/routing
var/ipfire/main/security
var/ipfire/main/send_profile
var/ipfire/main/settings
var/ipfire/modem/settings
var/ipfire/optionsfw/settings
var/ipfire/ovpn
var/ipfire/ovpn/ccd.conf
var/ipfire/ovpn/collectd.vpn
var/ipfire/ovpn/enable
var/ipfire/ovpn/server.conf
var/ipfire/ovpn/settings
var/ipfire/pakfire/settings
var/ipfire/ppp
var/ipfire/ppp/fake-resolv.conf
var/ipfire/ppp/settings
var/ipfire/private/cakey.pem
var/ipfire/proxy
var/ipfire/proxy/asnbl-helper.conf
var/ipfire/proxy/cachemgr.conf
var/ipfire/proxy/enable
var/ipfire/proxy/settings
var/ipfire/proxy/squid.conf
var/ipfire/qos/bin
var/ipfire/qos/classes
var/ipfire/qos/level7config
var/ipfire/qos/portconfig
var/ipfire/qos/settings
var/ipfire/qos/subclasses
var/ipfire/qos/tosconfig
var/ipfire/remote/enablessh
var/ipfire/remote/settings
var/ipfire/sensors/settings
var/ipfire/suricata/oinkmaster.conf
var/ipfire/suricata/oinkmaster-modify-sids.conf
var/ipfire/suricata/oinkmaster-provider-includes.conf
var/ipfire/suricata/providers-settings
var/ipfire/suricata/settings
var/ipfire/suricata/suricata-default-rules.yaml
var/ipfire/suricata/suricata-dns-servers.yaml
var/ipfire/suricata/suricata-emerging-used-rulefiles.yaml
var/ipfire/suricata/suricata-homenet.yaml
var/ipfire/suricata/suricata-http-ports.yaml
var/ipfire/suricata/suricata-sslbl_blacklist-used-rulefiles.yaml
var/ipfire/suricata/suricata-used-providers.yaml
var/ipfire/time/
var/ipfire/time/counter.conf
var/ipfire/time/enable
var/ipfire/time/settime.conf
var/ipfire/time/settings
var/ipfire/upnp/settings
var/ipfire/urlfilter
var/ipfire/urlfilter/settings
var/ipfire/urlfilter/squidGuard.conf
var/ipfire/vpn
var/ipfire/vpn/config
var/ipfire/vpn/ipsec.conf
var/ipfire/vpn/settings
var/ipfire/wakeonlan/clients.conf
var/ipfire/wio/wio.conf
var/ipfire/wireless/config
var/ipfire/wireless/settings
var/lib/suricata
var/log/rrd/collectd
var/log/rrd/hddshutdown-md127.rrd
var/log/rrd/hddshutdown-sda.rrd
var/log/rrd/hddshutdown-sdb.rrd
var/log/rrd/hddtemp-md127.rrd
var/log/rrd/hddtemp-sda.rrd
var/log/rrd/hddtemp-sdb.rrd
var/log/rrd/wio
var/log/vnstat
var/tmp/idsrules-emerging.tar.gz
var/tmp/idsrules-sslbl_blacklist.rules
The following are in the previous list but not in this one:-
/
/etc/conntrackd/conntrackd.conf
/etc/ipsec.user-post.conf
/root/.gitconfig
/root/.ssh
Regards,
Adolf.
On 29/03/2022 16:01, Adolf Belka wrote:

Hi All,

On 29/03/2022 15:36, Bernhard Bitsch wrote:

Hi,

Am 29.03.2022 um 15:11 schrieb Michael Tremer:

Hello,

Could you please send the file listing to find out what is being included what shouldn’t?

Unfortunately, as I stopped the backup continuing once it had reached 1.2GB, the file created was not able to be opened. Probably stopping the backup corrupted it in some way.

Just for easy quick handling, you can use
'/var/ipfire/backup/bin/backup.pl list' to show the files included.

I gave this a go and here is the output from the command.

-bash-5.1$ sudo /var/ipfire/backup/bin/backup.pl list
/
/etc/conntrackd/conntrackd.conf
/etc/group
/etc/hosts
/etc/hosts.allow
/etc/hosts.deny
/etc/httpd/server.crt
/etc/httpd/server.csr
/etc/httpd/server-ecdsa.crt
/etc/httpd/server-ecdsa.csr
/etc/httpd/server-ecdsa.key
/etc/httpd/server.key
/etc/ipsec.user.conf
/etc/ipsec.user-post.conf
/etc/ipsec.user.secrets
/etc/logrotate.d
/etc/passwd
/etc/shadow
/etc/squid/squid.conf.local
/etc/squid/squid.conf.pre.local
/etc/ssh/sshd_config
/etc/ssh/ssh_host_ecdsa_key
/etc/ssh/ssh_host_ecdsa_key.pub
/etc/ssh/ssh_host_ed25519_key
/etc/ssh/ssh_host_ed25519_key.pub
/etc/ssh/ssh_host_rsa_key
/etc/ssh/ssh_host_rsa_key.pub
//etc/sudoers
/etc/sysconfig/createfiles
/etc/sysconfig/firewall.local
/etc/sysconfig/lm_sensors
/etc/sysconfig/modules
/etc/sysconfig/ramdisk
/etc/sysconfig/rc
/etc/sysconfig/rc.local
/etc/unbound
//home/ahb
/root/.bash_history
/root/.gitconfig
/root/.ssh
/var/ipfire/accounting/settings.conf
/var/ipfire/auth/users
/var/ipfire/backup/addons/backup
/var/ipfire/backup/exclude.user
/var/ipfire/backup/include.user
/var/ipfire/ca/cacert.pem
/var/ipfire/captive/agb.txt
/var/ipfire/captive/clients
/var/ipfire/captive/coupons
/var/ipfire/captive/logo.dat
/var/ipfire/captive/settings
/var/ipfire/captive/terms.txt
/var/ipfire/captive/voucher_out
/var/ipfire/certs/hostcert.pem
/var/ipfire/certs/hostkey.pem
/var/ipfire/certs/phoebevmipseccert.pem
/var/ipfire/connscheduler/connscheduler.conf
/var/ipfire/crls/cacrl.pem
/var/ipfire/cups/cups-browsed.conf
/var/ipfire/cups/subscriptions.conf
/var/ipfire/ddns/config
/var/ipfire/ddns/ddns.conf
/var/ipfire/ddns/settings
/var/ipfire/dhcp/advoptions
/var/ipfire/dhcp/advoptions-list
/var/ipfire/dhcpc/dhcpcd.conf
/var/ipfire/dhcp/dhcpd.conf
/var/ipfire/dhcp/dhcpd.conf.local
/var/ipfire/dhcp/enable_blue
/var/ipfire/dhcp/enable_green
/var/ipfire/dhcp/fixleases
/var/ipfire/dhcp/settings
/var/ipfire/dma/auth.conf
/var/ipfire/dma/dma.conf
/var/ipfire/dma/mail.conf
/var/ipfire/dns
/var/ipfire/dnsforward/config
/var/ipfire/dns/settings
/var/ipfire/ethernet/aliases
/var/ipfire/ethernet/settings
/var/ipfire/ethernet/wireless
/var/ipfire/extrahd/settings
/var/ipfire/firewall
/var/ipfire/firewall/config
/var/ipfire/firewall/settings
/var/ipfire/fwhosts
/var/ipfire/isdn/settings
/var/ipfire/logging/settings
/var/ipfire/mac/settings
/var/ipfire/main/firstsetup_ok
/var/ipfire/main/gpl_accepted
/var/ipfire/main/hostname.conf
/var/ipfire/main/hosts
/var/ipfire/main/manualpages
/var/ipfire/main/routing
/var/ipfire/main/security
/var/ipfire/main/send_profile
/var/ipfire/main/settings
/var/ipfire/modem/settings
/var/ipfire/optionsfw/settings
/var/ipfire/ovpn
/var/ipfire/ovpn/ccd.conf
/var/ipfire/ovpn/collectd.vpn
/var/ipfire/ovpn/enable
/var/ipfire/ovpn/server.conf
/var/ipfire/ovpn/settings
/var/ipfire/pakfire/settings
/var/ipfire/ppp
/var/ipfire/ppp/fake-resolv.conf
/var/ipfire/ppp/settings
/var/ipfire/private/cakey.pem
/var/ipfire/proxy
/var/ipfire/proxy/asnbl-helper.conf
/var/ipfire/proxy/cachemgr.conf
/var/ipfire/proxy/enable
/var/ipfire/proxy/settings
/var/ipfire/proxy/squid.conf
/var/ipfire/qos/bin
/var/ipfire/qos/bin/qos.sh
/var/ipfire/qos/classes
/var/ipfire/qos/level7config
/var/ipfire/qos/portconfig
/var/ipfire/qos/settings
/var/ipfire/qos/subclasses
/var/ipfire/qos/tosconfig
/var/ipfire/remote/enablessh
/var/ipfire/remote/settings
/var/ipfire/sensors/settings
/var/ipfire/suricata/oinkmaster.conf
/var/ipfire/suricata/oinkmaster-modify-sids.conf
/var/ipfire/suricata/oinkmaster-provider-includes.conf
/var/ipfire/suricata/providers-settings
/var/ipfire/suricata/settings
/var/ipfire/suricata/suricata-default-rules.yaml
/var/ipfire/suricata/suricata-dns-servers.yaml
/var/ipfire/suricata/suricata-emerging-used-rulefiles.yaml
/var/ipfire/suricata/suricata-homenet.yaml
/var/ipfire/suricata/suricata-http-ports.yaml
/var/ipfire/suricata/suricata-sslbl_blacklist-used-rulefiles.yaml
/var/ipfire/suricata/suricata-used-providers.yaml
/var/ipfire/time/
/var/ipfire/time/counter.conf
/var/ipfire/time/enable
/var/ipfire/time/settime.conf
/var/ipfire/time/settings
/var/ipfire/upnp/settings
/var/ipfire/urlfilter
/var/ipfire/urlfilter/settings
/var/ipfire/urlfilter/squidGuard.conf
/var/ipfire/vpn
/var/ipfire/vpn/config
/var/ipfire/vpn/ipsec.conf
/var/ipfire/vpn/settings
/var/ipfire/wakeonlan/clients.conf
/var/ipfire/wio/wio.conf
/var/ipfire/wireless/config
/var/ipfire/wireless/settings
/var/lib/suricata
/var/log/rrd/collectd
/var/log/rrd/hddshutdown-md127.rrd
/var/log/rrd/hddshutdown-sda.rrd
/var/log/rrd/hddshutdown-sdb.rrd
/var/log/rrd/hddtemp-md127.rrd
/var/log/rrd/hddtemp-sda.rrd
/var/log/rrd/hddtemp-sdb.rrd
/var/log/rrd/wio
/var/log/vnstat
/var/tmp/idsrules-emerging.tar.gz
/var/tmp/idsrules-sslbl_blacklist.rules

Regards,
Adolf.

Bernhard

-Michael

On 29 Mar 2022, at 14:10, Adolf Belka <adolf.belka@ipfire.org> wrote:

Hi Michael,

Just tried this patch out on my vm testbed system and it still doesn't work for me. The backup file had got to 1.3GB when I deleted the backup file as it was still growing. The normal correct backup file on that vm machine is around 7MB

The above was the case for both running it from the WUI or from the command line from my unprivileged user using sudo backupctrl exclude

Regards,

Adolf.


On 29/03/2022 14:27, Michael Tremer wrote:

This patch fixes globbing expansion in the backup include file list
which got broken in c7e0d73e7cfd7be95db9d0a5f3392b8241813d5b.

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---
   config/backup/backup.pl | 8 ++++----
   1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/config/backup/backup.pl b/config/backup/backup.pl
index a2337cf23..6f9295e94 100644
--- a/config/backup/backup.pl
+++ b/config/backup/backup.pl
@@ -19,6 +19,8 @@
# #
###############################################################################
   +shopt -s nullglob
+
   NOW="$(date "+%Y-%m-%d-%H:%M")"
     list_addons() {
@@ -38,10 +40,8 @@ process_includes() {
       for include in $@; do
           local file
           while read -r file; do
-            for file in ${file}; do
-                if [ -e "/${file}" ]; then
-                    echo "${file}"
-                fi
+            for file in /${file}; do
+                echo "${file}"
               done
           done < "${include}"
       done | sort -u