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Author SHA1 Message Date
Johannes Schauer Marin Rodrigues
aae47da9ab
coverage.sh: fix test that was wrongly installing outside the chroot and download-only 2021-08-16 23:14:18 +02:00
Johannes Schauer Marin Rodrigues
3e488dd1dd
use apt from the outside by setting DPkg::Chroot-Directory 2021-08-16 22:33:39 +02:00
Johannes Schauer Marin Rodrigues
3e61382763
README.md: fix my name 2021-08-16 13:12:55 +02:00
Johannes Schauer Marin Rodrigues
c63ad87310
changes for release of Debian 11 Buster 2021-08-16 13:11:42 +02:00
Johannes Schauer Marin Rodrigues
594ea3c72e
improve busybox and --hook-dir examples in man page -- thanks Jochen Sprickerhof! 2021-05-31 16:33:34 +02:00
Johannes Schauer Marin Rodrigues
3f79c18a0d
since apt 2.1.16 we can use --error-on=any and do not anymore need to error out on all W: lines (closes: #6) 2021-05-31 11:17:45 +02:00
Benjamin Drung
0378c101bb
Pass extended attributes (excluding system) to tar2sqfs 
/bin/ping (from iputils-ping) uses the security capabilities to allow
users to use the program:

```
$ getcap /bin/ping
/bin/ping cap_net_raw=ep
```

Debian testing/unstable images (variant important) contain security and
system attributes:

```
$ mmdebstrap --variant=important bullseye root.tar
$ tar --xattrs --xattrs-include='*' -vv -tf root.tar | grep -B 1 '^ '
-rwxr-xr-x* 0/0           77432 2021-02-02 18:49 ./bin/ping
  x: 20 security.capability
--
drwxr-sr-x* 0/102             0 2021-05-07 15:10 ./var/log/journal/
  x: 44 system.posix_acl_access
  x: 44 system.posix_acl_default
```

When generating a squashfs image with mmdebstrap 0.7.5-2, these security
capabilities are lost. Example for building a squashfs image in a
minimal Debian unstable schroot:

```
$ apt install -y mmdebstrap squashfs-tools-ng
$ mmdebstrap --variant=important buster root.squashfs
$ rdsquashfs -x /bin/ping root.squashfs
$
```

tar2sqfs from squashfs-tools-ng 1.0.4-1 supports encoding extended
attributes from the namespace `user`, `trusted`, and `security` (see
`include/sqfs/xattr.h`). GNU tar (version 1.34) supports these three
namespaces plus the namespace `system`.

Passing extended attributes from the `system` namespace to tar2sqfs will
produce an error:

```
ERROR: squashfs does not support xattr prefix of system.posix_acl_default
```

So pass the extended attributes to tar2sqfs, but exclude the `system`
namespace. Then ping will keep its security attributes:

```
$ rdsquashfs -x /bin/ping root.squashfs
security.capability=0x0100000200200000000000000000000000000000
```

Closes: #988100
Signed-off-by: Benjamin Drung <benjamin.drung@ionos.com>
 2021-05-17 21:43:10 +02:00
Johannes Schauer Marin Rodrigues
88a031477a
add --skip=cleanup/apt/lists and --skip=cleanup/apt/cache 2021-05-09 20:44:02 +02:00
Vagrant Cascadian
c51fb24c7b
Use all cores when compressing with zstd. 2021-05-09 17:32:04 +02:00
Johannes Schauer Marin Rodrigues
236b84a486
tarfilter: add --pax-exclude and --pax-include to strip extended attributes because tar2sqfs only supports user.*, trusted.* and security.* 2021-05-07 09:39:40 +02:00
Johannes Schauer Marin Rodrigues
bd5d3c3dab
tarfilter: remove leftover debugging statement 2021-05-07 09:20:36 +02:00
Johannes Schauer Marin Rodrigues
ebfac91738
also choose null format if stdout is /dev/null and check whether major and minor number of /dev/null are as expected to avoid false positives 2021-05-04 15:01:53 +02:00
Konstantin Demin
ccd4b5c163
gpg: handle ASCII-armored keyrings as well 
gpg command "--list-keys" requires input files to be passed with
option "--keyring" and each file must match type "public keyring v4"
while gpg command "--show-keys" doesn't require extra options and
handles also ASCII-armored public keyrings as well.

Signed-off-by: Konstantin Demin <rockdrilla@gmail.com>
 2021-04-25 22:33:37 +03:00
Helmut Grohne
2767b051bc
implement --format=null 2021-03-25 07:04:14 +01:00
Johannes Schauer Marin Rodrigues
4c17f36072
better document the TMPDIR env var 2021-03-08 19:33:51 +01:00
Johannes Schauer Marin Rodrigues
4cd69d444a
coverage.sh: let cover output to stderr to prevent wrong message output order 2021-03-08 19:33:24 +01:00
Johannes Schauer Marin Rodrigues
4cd547286c
coverage.sh: sysvinit-utils also works with chrootless 2021-03-08 19:32:53 +01:00
Johannes Schauer Marin Rodrigues
65070e23da
coverage.sh: add more docs for chrootless essential test 2021-03-08 19:32:19 +01:00
Johannes Schauer Marin Rodrigues
5a3d1ab5c4
Rework /dev, /sys, /proc mounting 
- assume all entries in @devfiles to be in /dev
 - allow for /dev, /sys and /proc not to exist in the target and print warning
 - allow for /dev entries as well as /sys and /proc not to exist on the outside
 - simplify umount by storing special options in @umountopts
 - remove superfluous checks for root and unshare mode
 - make sure /dev entries are less than 100 chars in size for tar
 2021-03-08 08:04:35 +01:00
Johannes Schauer Marin Rodrigues
d52eaa4814
instead of checking for defined-ness and then comparing with the empty string, we can just use 'length' which returns undef if its argument is undef 2021-03-08 07:54:04 +01:00
Johannes Schauer Marin Rodrigues
270fd09b43
update copyright information 2021-03-08 07:52:14 +01:00
Johannes Schauer Marin Rodrigues
d5c8a85ace
document problems with chrootless mode in man page 2021-02-23 12:50:18 +01:00
Johannes Schauer Marin Rodrigues
ecbc10794c
warn if --dpkgopt is used in chrootless mode because of #808203 2021-02-23 12:49:46 +01:00
Johannes Schauer Marin Rodrigues
49f464e7da
create /etc/dpkg/dpkg.cfg.d/ if --dpkgopt is used 2021-02-23 12:49:26 +01:00
Johannes Schauer Marin Rodrigues
bbf12c221d
tarfilter: fixup last commit by formatting with black 2021-02-22 13:45:55 +01:00
Benjamin Drung
043ab3bbf0
tarfilter: Compile prefix pattern only once 
According to Debian bug #978742, mmtarfilter has a slow performance with
many path exclusions. The execution can be speed up if the regular
expression is only compiled once instead of every time in the hot loop.

Signed-off-by: Benjamin Drung <benjamin.drung@cloud.ionos.com>
 2021-02-22 13:15:16 +01:00
Johannes Schauer Marin Rodrigues
5fd1ca62d9
coverage.sh: don't attempt deleting non-existant directory 2021-02-19 14:40:20 +01:00
Johannes Schauer Marin Rodrigues
067daaf4c2
also run unshare with --propagation unchanged in root mode 2021-02-19 12:53:14 +01:00
Josh Triplett
f8fc7d9bbf
Fix typo in hook directory example 2021-02-06 18:58:30 +01:00
Johannes Schauer Marin Rodrigues
976cc9c1c4
release 0.7.5 2021-02-06 14:46:37 +01:00
Johannes Schauer Marin Rodrigues
276363c2a1
coverage.sh: remove chroot directories 2021-02-06 14:46:37 +01:00
Johannes Schauer Marin Rodrigues
0009e62b3e
coverage.sh: do not run cap_sys_admin test under lxc 2021-02-06 14:46:37 +01:00
Johannes Schauer Marin Rodrigues
73cd7cd2e8
run unshare --mount with --propagation unchanged to prevent 'cannot change root filesystem propagation' when running mmdebstrap from inside a chroot 2021-02-06 10:11:53 +01:00
Trent W. Buck
f976dabb51
add examples/twb 2021-02-06 10:10:17 +01:00
Johannes Schauer Marin Rodrigues
39167dbc30
expose hook name to hooks via MMDEBSTRAP_HOOK environment variable 2021-02-06 09:18:05 +01:00
Johannes Schauer Marin Rodrigues
8a4f4d90ab
remove example showing mmdebstrap as debootstrap replacement for sbuild-createchroot as it doesn't work in unshare mode 2021-02-04 17:47:40 +01:00
Johannes Schauer Marin Rodrigues
e1e0df7799
skip emulation check for extract variant 2021-02-04 17:47:10 +01:00
Johannes Schauer Marin Rodrigues
c740b01dc8
unset TMPDIR in hooks because there is no value that works inside as well as outside the chroot 2021-02-04 17:46:39 +01:00
Johannes Schauer Marin Rodrigues
0595c5c220
add new suite name trixie 2021-02-04 17:43:33 +01:00
Johannes Schauer Marin Rodrigues
7a43ff89dc
improve dpkg and apt version parsing 2021-02-04 17:42:40 +01:00
Johannes Schauer Marin Rodrigues
aaa7c14275
hooks/setup00-merged-usr.sh: add rationale 2021-02-04 17:40:35 +01:00
Johannes Schauer Marin Rodrigues
4e658549f0
coverage.sh: clean up some additional files 2021-02-04 17:39:50 +01:00
Johannes 'josch' Schauer
d9633d05fe
release 0.7.4 2021-01-16 00:33:40 +01:00
Johannes 'josch' Schauer
7bd733fb8b
In root mode, check whether it's possible to mount 
- even if the user is root, they might not have permission to mount
 - check for CAP_SYS_ADMIN and unshare --mount before proceeding
 - allow one to disable the check with --skip=check/canmount
 - this is useful in container environments like docker
 2021-01-13 18:40:29 +01:00
Johannes 'josch' Schauer
205f5c2692
document how to use mmdebstrap to create a docker chroot 2021-01-13 18:08:04 +01:00
Johannes 'josch' Schauer
4693034138
allow unshare as root user 
- this is useful when you are already root and want the benefits of
   unsharing the mount namespace to prevent messing up your system
 - if the unshare mode is used as root, the user namespace is not unshared
   anymore and newuidmap, setuid and friends are not called anymore
 - if the unshare mode is used as non-root test if the user namespace can be
   unshared, otherwise test if the mount namespace can be unshared
 2021-01-13 16:15:59 +01:00
Johannes 'josch' Schauer
0f6741d01a
coverage.sh: allow to run on stable 2021-01-11 13:28:18 +01:00
Johannes 'josch' Schauer
ea6bbc1d9c
#898446 got closed and the default of kernel.unprivileged_userns_clone changed to 1 2021-01-09 19:44:39 +01:00
Johannes 'josch' Schauer
62bcf3261e
do not run an additional env command inside the chroot 2021-01-09 19:44:00 +01:00
Johannes 'josch' Schauer
7ff3f53fb9
apt 2.1.16 fixed immediate configure 2021-01-09 19:43:15 +01:00