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Commit Graph

6820 Commits

Author SHA1 Message Date
Georgia Garcia
3ea2bfec56 Merge Small fixes in MountRule
- Removed unnecessary variable source_is_path in mount rules
- Changed a string to a r-string to avoid an 'invalid escape sequence \s' warning

MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1172
Approved-by: Georgia Garcia <georgia.garcia@canonical.com>
Merged-by: Georgia Garcia <georgia.garcia@canonical.com>
2024-03-04 11:53:51 +00:00
Georgia Garcia
3d1a867c0a Merge Update mailinglist and homepage in changehat READMEs
MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1170
Approved-by: Georgia Garcia <georgia.garcia@canonical.com>
Merged-by: Georgia Garcia <georgia.garcia@canonical.com>
2024-03-04 11:53:10 +00:00
Georgia Garcia
dfb02cbd93 Merge MountRule: check for unknown fstype and options keywords, and fix issues uncovered by that
* **MountRule: sync flags_keywords with parser code**

    ... based on /mount.cc mnt_opts_table

    Several keywords and aliases were missing in flags_keywords:
    - B
    - M
    - make-private
    - make-rprivate
    - make-rshared
    - make-rslave
    - make-runbindable
    - make-shared
    - make-slave
    - make-unbindable
    - r
    - R
    - read-only
    - w

    Also sort the keywords in the same order as in mount.cc.

    Note: AARE handling is still a TODO.

    After that, update the list of known parsing failures:
    - several valid profiles are now correctly parsed
    - some `"make-*" mount opt and an invalid src` bad profiles are no
      longer detected as being invalid

* **test-mount.py: fix MountRule instance creation**

    If fstype or options is a str, it has to be exactly one keyword, because
    \__init__() / check_and_split_list() won't parse a str.

    Our "normal" code already honors this, and only hands over fstype and
    options as sets or a single-keyword str.

    However, a few tests (wrongly) handed over a str that would need further
    parsing. Adjust the tests to no longer do this.

* **MountRule: check for unknown fstype and options**

    ... now that the previous commits fixed issues that ended up as unknown
    keywords.

    Also add mount/ok_12.sd as known-failing test. It uses fstype=AARE which
    MountRule doesn't support (yet?).

MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1169
Approved-by: Georgia Garcia <georgia.garcia@canonical.com>
Merged-by: Georgia Garcia <georgia.garcia@canonical.com>
2024-03-04 11:52:53 +00:00
Georgia Garcia
90f056c1c6 Merge Several MountRule fixes and improvements
* Fix writing 'mount {options,fstype} in ...' rules

We need spaces around the 'in' keyword.

Also add some tests for this.

* Make error check more readable

* MountRule: make get_clean() more readable

... by getting rid of two mostly-identical, big return statements.

Also add tests for bare umound and remount rules to ensure full test
coverage.

MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1168
Approved-by: Georgia Garcia <georgia.garcia@canonical.com>
Merged-by: Georgia Garcia <georgia.garcia@canonical.com>
2024-03-04 11:52:33 +00:00
Maxime Bélair
0daf3e8c9b Changing string to r-string to avoid warning 2024-03-04 09:02:24 +01:00
Maxime Bélair
a86c1bd45a Remove unnecessary variable source_is_path in mount rules 2024-03-04 09:00:58 +01:00
Christian Boltz
8f4073ecd9 MountRule: check for unknown fstype and options
... now that the previous commits fixed issues that ended up as unknown
keywords.

Also add mount/ok_12.sd as known-failing test. It uses fstype=AARE which
MountRule doesn't support (yet?).
2024-03-03 21:30:49 +01:00
Christian Boltz
440be71c12 Update mailinglist and homepage in changehat READMEs 2024-03-03 18:12:06 +01:00
Christian Boltz
8d21f01924 test-mount.py: fix MountRule instance creation
If fstype or options is a str, it has to be exactly one keyword, because
__init__() / check_and_split_list() won't parse a str.

Our "normal" code already honors this, and only hands over fstype and
options as sets or a single-keyword str.

However, a few tests (wrongly) handed over a str that would need further
parsing. Adjust the tests to no longer do this.
2024-03-03 15:52:14 +01:00
Christian Boltz
4e546291a5 MountRule: sync flags_keywords with parser code
... based on /mount.cc mnt_opts_table

Several keywords and aliases were missing in flags_keywords:
- B
- M
- make-private
- make-rprivate
- make-rshared
- make-rslave
- make-runbindable
- make-shared
- make-slave
- make-unbindable
- r
- R
- read-only
- w

Also sort the keywords in the same order as in mount.cc.

Note: AARE handling is still a TODO.

After that, update the list of known parsing failures:
- several valid profiles are now correctly parsed
- some `"make-*" mount opt and an invalid src` bad profiles are no
  longer detected as being invalid
2024-03-03 15:37:59 +01:00
Christian Boltz
8c026077d6 MountRule: make get_clean() more readable
... by getting rid of two mostly-identical, big return statements.

Also add tests for bare umound and remount rules to ensure full test
coverage.
2024-03-03 13:09:43 +01:00
Christian Boltz
5e4c4a0cb3 Make error check more readable 2024-03-03 12:53:49 +01:00
Christian Boltz
9c27a7c435 Fix writing 'mount {options,fstype} in ...' rules
We need spaces around the 'in' keyword.

Also add some tests for this.
2024-03-03 12:49:57 +01:00
Christian Boltz
a367c07437 Merge Add useful error message in test-mount.py
If /proc/filesystems contains a filesystem that is not listed in
MountRule valid_fs, print a useful error message that says what exactly
is going on, instead of only saying "False is not True".

MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1166
Approved-by: Georgia Garcia <georgia.garcia@canonical.com>
Merged-by: Christian Boltz <apparmor@cboltz.de>
2024-03-01 21:30:33 +00:00
Christian Boltz
2200013088 Merge Cleanup old handling of mount rules
Now that we have MountRule and MountRuleset, drop the old "just store
the whole rule" code for mount rules.

Also drop some old tests that used that "store the whole mount rule"
code, and adjust the regex_matches tests to import the regex directly
from apparmor.regex.

MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1165
Approved-by: Georgia Garcia <georgia.garcia@canonical.com>
Merged-by: Christian Boltz <apparmor@cboltz.de>
2024-03-01 21:29:48 +00:00
Christian Boltz
d5afc33c40 Merge MountRule: Fix typo in 'btrfs', and add '9p' filesystem
The `9p` filesystem is available during the build in build.opensuse.org.

MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1164
Approved-by: Georgia Garcia <georgia.garcia@canonical.com>
Merged-by: Christian Boltz <apparmor@cboltz.de>
2024-03-01 21:27:44 +00:00
Christian Boltz
517e7c96c8 MountRule: add '9p' filesystem
This filesystem is available during the build in build.opensuse.org
2024-03-01 21:36:26 +01:00
Christian Boltz
a7cd59819e Add useful error message in test-mount.py
If /proc/filesystems contains a filesystem that is not listed in
MountRule valid_fs, print a useful error message that says what exactly
is going on, instead of only saying "False is not True".
2024-03-01 20:34:11 +01:00
Christian Boltz
e7f5ee3271 MountRule: Fix typo in 'btrfs' 2024-03-01 19:49:21 +01:00
Christian Boltz
da75b1c8d8 Cleanup old handling of mount rules
Now that we have MountRule and MountRuleset, drop the old "just store
the whole rule" code for mount rules.

Also drop some old tests that used that "store the whole mount rule"
code, and adjust the regex_matches tests to import the regex directly
from apparmor.regex.
2024-03-01 19:46:02 +01:00
Georgia Garcia
b264bb62c9 Prepare for AppArmor 4.0 beta1 release
- update version file
- update library version

Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>
v4.0.0-beta1
2024-02-29 19:24:53 -03:00
John Johansen
35287c8e1c Merge add fine grained network mediation support
Similar to https://gitlab.com/apparmor/apparmor/-/merge_requests/1095, but this time simplified.
This version removes support for ip and port ranges and subnets. This can be added later.

It also contains an updated version of the network layout required by the kernel side of AppArmor.

MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1160
Approved-by: John Johansen <john@jjmx.net>
Merged-by: John Johansen <john@jjmx.net>
2024-02-29 21:58:24 +00:00
Georgia Garcia
119e3f38f9 parser: maintain compatibility for fine grained inet network mediation
A simple rule without conditionals need to be generated for when the
kernel does not support fine grained inet network mediation.

Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>
2024-02-29 18:27:20 -03:00
Georgia Garcia
dd0d145a19 tests: add fine grained network regression tests 2024-02-29 17:09:19 -03:00
Georgia Garcia
f6ad1cbe1e tests: add multi string support in requires_parser_support
By not having quotes in $@, the string splits by the whitespace.
That prevents us from checking if the parser supports rules
that have spaces in them.

Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>
2024-02-29 16:25:59 -03:00
Georgia Garcia
8a5e7227db parser: add parser tests for specified perms
Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>
2024-02-29 16:25:59 -03:00
Georgia Garcia
79ee3eb180 parser: add parser tests for local conditional 2024-02-29 16:25:59 -03:00
Georgia Garcia
052dd987b3 parser: add network conditional parser tests 2024-02-29 16:25:59 -03:00
Georgia Garcia
7e25be7b0b parser: change network conditionals to allow unquoted ids
Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>
2024-02-29 16:25:59 -03:00
Georgia Garcia
ddefe11a40 parser: add fine grained conditionals to network rule
Options available are ip= and port= inside the peer group or outside,
representing local addresses and ports:

network peer=(ip=127.0.0.1 port=8080),
network ip=::1 port=8080 peer=(ip=::2 port=8081),

The 'ip' option supports both IPv4 and IPv6. Examples would be
ip=192.168.0.4, or ip=::578d

The 'port' option accepts a 16-bit unsigned integer. An example would
be port=1234

Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>
2024-02-29 16:25:59 -03:00
John Johansen
b83cf90b82 Merge Fix some DENIES for smbd when honouring pam restrictions
with smbd.conf param 'obey pam restrictions = yes'

on tumbleweed we get some new DENIES (which can prevent login)

e.g.

type=AVC msg=audit(1709113104.674:533): apparmor="DENIED" operation="exec" class="file" profile="smbd" name="/usr/sbin/unix_chkpwd" pid=3509 comm="smbd[127.0.0.1]" requested_mask="x" denied_mask="x" fsuid=0 ouid=0
type=AVC msg=audit(1709110904.602:345): apparmor="DENIED" operation="open" class="file" profile="smbd" name="/usr/etc/security/limits.d/" pid=3746 comm="smbd[127.0.0.1]" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
type=AVC msg=audit(1709110904.602:346): apparmor="DENIED" operation="open" class="file" profile="smbd" name="/proc/3746/loginuid" pid=3746 comm="smbd[127.0.0.1]" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
type=AVC msg=audit(1709110904.602:347): apparmor="DENIED" operation="open" class="file" profile="smbd" name="/usr/etc/environment" pid=3746 comm="smbd[127.0.0.1]" requested_mask="r" denied_mask="r" fsuid=0 ouid=0

Fixes: https://bugzilla.opensuse.org/show_bug.cgi?id=1220032

Signed-off-by: Noel Power <noel.power@suse.com>

MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1159
Approved-by: John Johansen <john@jjmx.net>
Merged-by: John Johansen <john@jjmx.net>
2024-02-29 18:00:40 +00:00
John Johansen
e3cb9e1669 Merge Adding userspace support for mount rules in aa-genprof/aa-logprof
Adding userspace support for mount rules in aa-genprof/aa-logprof

MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1153
Approved-by: John Johansen <john@jjmx.net>
Merged-by: John Johansen <john@jjmx.net>
2024-02-29 17:59:51 +00:00
Maxime Bélair
924b335dfc Adding userspace support for mount rules in aa-genprof/aa-logprof 2024-02-29 17:59:50 +00:00
John Johansen
a2da64304f Merge profiles: add nautilus unconfined profile
Nautilus uses user namespaces to load thumbnails, hence it needs an
unconfined profile when user namespaces are restricted from unconfined
like other applications in MR #1123

Although nautilus has extensions that would allow opening a terminal
from the nautilus interface, they do not inherit nautilus' AppArmor
label, therefore the use of unconfined does not allow arbitrary use of
unprivileged user namespaces using the nautilus label.

https://gitlab.com/apparmor/apparmor/-/merge_requests/1123

In addition this serves as a handle to uniquely identify them instead
of unconfined to peers in policy.

Note that unconfined mode should be changed for default_allow when
https://gitlab.com/apparmor/apparmor/-/merge_requests/1109 is merged.

Fixes: https://bugs.launchpad.net/bugs/2047256
Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>

MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1161
Approved-by: John Johansen <john@jjmx.net>
Merged-by: John Johansen <john@jjmx.net>
2024-02-29 12:02:44 +00:00
Georgia Garcia
bb53886211 profiles: add nautilus unconfined profile
Nautilus uses user namespaces to load thumbnails, hence it needs an
unconfined profile when user namespaces are restricted from unconfined
like other applications in MR #1123

Although nautilus has extensions that would allow opening a terminal
from the nautilus interface, they do not inherit nautilus' AppArmor
label, therefore the use of unconfined does not allow arbitrary use of
unprivileged user namespaces using the nautilus label.

https://gitlab.com/apparmor/apparmor/-/merge_requests/1123

In addition this serves as a handle to uniquely identify them instead
of unconfined to peers in policy.

Note that unconfined mode should be changed for default_allow when
https://gitlab.com/apparmor/apparmor/-/merge_requests/1109 is merged.

Fixes: https://bugs.launchpad.net/bugs/2047256
Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>
2024-02-29 08:21:25 -03:00
Georgia Garcia
746f76d3e1 parser: add ability to specify permission in network rules
Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>
2024-02-28 21:42:18 -03:00
Georgia Garcia
35f25a251b parser: fix coverity issues found in snapshot 70858
This commit add fixes for issues found in coverity's snapshot 70858.
  - CID 323127:  Performance inefficiencies  (COPY_INSTEAD_OF_MOVE)
  - CID 323125:  Uninitialized members  (UNINIT_CTOR)

I'm also removing Novell, Inc. from the copyright notice added by a
copy-paste error, and an unused variable left over from debugging.

Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>
2024-02-28 10:24:08 -03:00
Noel Power
c09f58a364 Fix some DENIES for smbd when honouring pam restrictions
with smbd.conf param 'obey pam restrictions = yes'

on tumbleweed we get some new DENIES (which can prevent login)

e.g.

type=AVC msg=audit(1709113104.674:533): apparmor="DENIED" operation="exec" class="file" profile="smbd" name="/usr/sbin/unix_chkpwd" pid=3509 comm="smbd[127.0.0.1]" requested_mask="x" denied_mask="x" fsuid=0 ouid=0
type=AVC msg=audit(1709110904.602:345): apparmor="DENIED" operation="open" class="file" profile="smbd" name="/usr/etc/security/limits.d/" pid=3746 comm="smbd[127.0.0.1]" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
type=AVC msg=audit(1709110904.602:346): apparmor="DENIED" operation="open" class="file" profile="smbd" name="/proc/3746/loginuid" pid=3746 comm="smbd[127.0.0.1]" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
type=AVC msg=audit(1709110904.602:347): apparmor="DENIED" operation="open" class="file" profile="smbd" name="/usr/etc/environment" pid=3746 comm="smbd[127.0.0.1]" requested_mask="r" denied_mask="r" fsuid=0 ouid=0

Fixes: https://bugzilla.opensuse.org/show_bug.cgi?id=1220032

Signed-off-by: Noel Power <noel.power@suse.com>
2024-02-28 09:59:55 +00:00
Christian Boltz
909e330fd0 Merge aa-notify: precompile filter regexes
Precompile each filter regex with re.compile so they don't need to be
recompiled for each log message when using re.match directly.

Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>

MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1158
Approved-by: Christian Boltz <apparmor@cboltz.de>
Merged-by: Christian Boltz <apparmor@cboltz.de>
2024-02-26 17:15:26 +00:00
Georgia Garcia
88907253e4 aa-notify: precompile filter regexes
Precompile each filter regex with re.compile so they don't need to be
recompiled for each log message when using re.match directly.

Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>
2024-02-26 10:24:46 -03:00
Christian Boltz
124e73ec93 Merge profiles: update visual studio code so that it can be run from gnome
The current attachment works from the commandline but not from
gnome as it uses an alternate path.

Fixes: https://gitlab.com/apparmor/apparmor/-/issues/368
Signed-off-by: John Johansen <john.johansen@canonical.com>

Closes #368
MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1156
Approved-by: Christian Boltz <apparmor@cboltz.de>
Merged-by: Christian Boltz <apparmor@cboltz.de>
2024-02-25 10:11:30 +00:00
John Johansen
4b1bc85022 Merge aa-unconfined: Fix race when reading proc/*/attr/current
aa-unconfined can fault if it looses the race between checkking if
proc/*/attr/{apparmor/,}current exists, and actually opening the file.
Catch open/file errors and ignore them like the file doesn't exist.

Fixes: https://gitlab.com/apparmor/apparmor/-/issues/355
Signed-off-by: John Johansen <john.johansen@canonical.com>

Closes #355
MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1157
Acked-by: seth.arnold@gmail.com
Approved-by: John Johansen <john@jjmx.net>
Merged-by: John Johansen <john@jjmx.net>
2024-02-25 07:36:16 +00:00
John Johansen
c4f649da92 aa-unconfined: Fix race when reading proc/*/attr/current
aa-unconfined can fault if it looses the race between checkking if
proc/*/attr/{apparmor/,}current exists, and actually opening the file.
Catch open/file errors and ignore them like the file doesn't exist.

Fixes: https://gitlab.com/apparmor/apparmor/-/issues/355
Signed-off-by: John Johansen <john.johansen@canonical.com>
2024-02-24 20:33:35 -08:00
John Johansen
108f489f2b profiles: update visual studio code so that it can be run from gnome
The current attachment works from the commandline but not from
gnome as it uses an alternate path.

Fixes: https://gitlab.com/apparmor/apparmor/-/issues/368
Signed-off-by: John Johansen <john.johansen@canonical.com>
2024-02-24 20:27:13 -08:00
John Johansen
4d2172e82e Merge aa-notify: add notification filtering
Allow notification filtering of the fields profile, operation, name,
denied_mask, net_family and net_socket using regex. Both command line
and config options in notify.conf are available.

Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>

MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1154
Approved-by: John Johansen <john@jjmx.net>
Merged-by: John Johansen <john@jjmx.net>
2024-02-25 04:07:00 +00:00
John Johansen
95d9ba8d8b Merge makefiles: test for support of flto-partition flag
Test for compiler support of "-flto-partition=none" flag before passing
it.

Fixes: https://gitlab.com/apparmor/apparmor/-/issues/310

Closes #310
MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1155
Approved-by: John Johansen <john@jjmx.net>
Merged-by: John Johansen <john@jjmx.net>
2024-02-25 03:31:01 +00:00
Félix Poisot
420d3395fc makefiles: test for support of flto-partition flag
Test for compiler support of "-flto-partition=none" flag before passing
it.

Fixes: https://gitlab.com/apparmor/apparmor/-/issues/310
2024-02-24 16:07:55 +00:00
Georgia Garcia
4608d32628 aa-notify: add notification filtering
Allow notification filtering of the fields profile, operation, name,
denied_mask, net_family and net_socket using regex. Both command line
and config options in notify.conf are available.

Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>
2024-02-23 17:20:18 -03:00
John Johansen
2394ca82c5 Merge utils: fix aa-notify last login test
The tests for aa-notify that were related to the last login were
assuming that the machine had been logged in at least once in the last
30 days, but that might not be the case.

Update the test to check for the last login date and update the test
logs considering that value.

Fixes: https://bugs.launchpad.net/bugs/1939022

Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>

MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1152
Approved-by: John Johansen <john@jjmx.net>
Merged-by: John Johansen <john@jjmx.net>
2024-02-21 22:38:35 +00:00
Georgia Garcia
105b50502b utils: fix aa-notify last login test
The tests for aa-notify that were related to the last login were
assuming that the machine had been logged in at least once in the last
30 days, but that might not be the case.

Update the test to check for the last login date and update the test
logs considering that value.

Fixes: https://bugs.launchpad.net/bugs/1939022

Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>
2024-02-21 18:18:26 -03:00