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* selinux: Update policy to fix user/group settingsStefano Brivio2023-08-182-4/+13
| | | | | | | | | Somehow most of this used to work on older kernels, but now we need to explicitly permit setuid, setgid, and setcap capabilities, as well as read-only access to passwd (as we support running under a given login name) and sssd library facilities. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* selinux: Fix user namespace creation after breaking kernel changeStefano Brivio2023-08-182-0/+4
| | | | | | | | | | | | | | | | | Kernel commit ed5d44d42c95 ("selinux: Implement userns_create hook") seems to just introduce a new functionality, but given that SELinux implements a form of mandatory access control, introducing the new permission breaks any application (shipping with SELinux policies) that needs to create user namespaces, such as passt and pasta for sandboxing purposes. Add the new 'allow' rules. They appear to be backward compatible, kernel-wise, and the policy now requires the new 'user_namespace' class to build, but that's something distributions already ship. Reported-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
* selinux: Use explicit paths for binaries in file contextStefano Brivio2023-08-182-2/+4
| | | | | | | | | There's no reason to use wildcards, and we don't want any similarly-named binary (not that I'm aware of any) to risk being associated to passt_exec_t and pasta_exec_t by accident. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
* fedora: Install pasta as hard link to ensure SELinux file context matchStefano Brivio2023-08-181-0/+7
| | | | | | | | | | | | | | The Makefile installs symbolic links by default, which actually worked at some point (not by design) with SELinux, but at least on recent kernel versions it doesn't anymore: override pasta (and pasta.avx2) with hard links. Otherwise, even if the links are labeled as pasta_exec_t, SELinux will "resolve" them to passt_exec_t, and we'll have pasta running as passt_t instead of pasta_t. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Acked-by: Richard W.M. Jones <rjones@redhat.com>
* passt: Relicense to GPL 2.0, or any later versionStefano Brivio2023-04-0611-12/+12
| | | | | | | | | | | | | | | | | | | In practical terms, passt doesn't benefit from the additional protection offered by the AGPL over the GPL, because it's not suitable to be executed over a computer network. Further, restricting the distribution under the version 3 of the GPL wouldn't provide any practical advantage either, as long as the passt codebase is concerned, and might cause unnecessary compatibility dilemmas. Change licensing terms to the GNU General Public License Version 2, or any later version, with written permission from all current and past contributors, namely: myself, David Gibson, Laine Stump, Andrea Bolognani, Paul Holzinger, Richard W.M. Jones, Chris Kuhn, Florian Weimer, Giuseppe Scrivano, Stefan Hajnoczi, and Vasiliy Ulyanov. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Adjust path for SELinux policy and interface file to latest guidelines2023_03_29.b10b983Stefano Brivio2023-03-291-9/+8
| | | | | | | | | | | | | | | | | | | Forget about: https://fedoraproject.org/wiki/SELinux_Policy_Modules_Packaging_Draft and: https://fedoraproject.org/wiki/PackagingDrafts/SELinux_Independent_Policy The guidelines to follow are: https://fedoraproject.org/wiki/SELinux/IndependentPolicy Start from fixing the most pressing issue, that is, a path conflict with policy-selinux-devel about passt.if, and, while at it, adjust the installation paths for policy files too. Reported-by: Xose Vazquez Perez <xose.vazquez@gmail.com> Link: https://bugzilla.redhat.com/show_bug.cgi?id=2182476 Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Don't install useless SELinux interface file for pastaStefano Brivio2023-03-291-2/+0
| | | | | | | | | | That was meant to be an example, and I just dropped it in the previous commit -- passt.if should be more than enough as a possible example. Reported-by: Carl G. <carlg@fedoraproject.org> Link: https://bugzilla.redhat.com/show_bug.cgi?id=2182145 Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* selinux: Drop useless interface file for pastaStefano Brivio2023-03-291-25/+0
| | | | | | | | | This was meant to be an example, but I managed to add syntax errors to it. Drop it altogether. Reported-by: Carl G. <carlg@fedoraproject.org> Link: https://bugzilla.redhat.com/show_bug.cgi?id=2182145 Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Refresh SELinux labels in scriptlets, require -selinux package2023_03_17.dd23496Stefano Brivio2023-03-171-5/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | Instead of: https://fedoraproject.org/wiki/SELinux_Policy_Modules_Packaging_Draft follow this: https://fedoraproject.org/wiki/PackagingDrafts/SELinux_Independent_Policy which seems to make more sense and fixes the issue that, on a fresh install, without a reboot, the file contexts for the binaries are not actually updated. In detail: - labels are refreshed using the selinux_relabel_pre and selinux_relabel_post on install, upgrade, and uninstall - use the selinux_modules_install and selinux_modules_uninstall macros, instead of calling 'semodule' directly (no functional changes in our case) - require the -selinux package on SELinux-enabled environments and if the current system policy is "targeted" Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Install SELinux interface files to shared include directory2023_03_10.70c0765Stefano Brivio2023-03-101-0/+4
| | | | | Link: https://github.com/fedora-selinux/selinux-policy/pull/1613 Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* contrib/selinux: Split interfaces into smaller bitsStefano Brivio2023-03-101-10/+61
| | | | | | | ...to fit accepted Fedora practices. Link: https://github.com/fedora-selinux/selinux-policy/pull/1613 Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* contrib/selinux: Drop unused passt_read_data() interfaceStefano Brivio2023-03-101-8/+0
| | | | Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* contrib/selinux: Drop "example" from headers: this is the actual policyStefano Brivio2023-03-106-6/+6
| | | | Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* contrib: Drop libvirt out-of-tree patch, integration mostly works in 9.1.0Stefano Brivio2023-03-091-427/+0
| | | | | | | | ...and in any case, this patch doesn't offer any advantage over the current upstream integration. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
* contrib: Drop QEMU out-of-tree patchesStefano Brivio2023-03-092-208/+0
| | | | | | | Native support was introduced with commit 13c6be96618c, QEMU 7.2. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
* contrib: Drop Podman out-of-tree patch, integration is upstream nowStefano Brivio2023-03-091-605/+0
| | | | | | | | See https://github.com/containers/podman/pull/16141, shipped in Podman 4.4. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
* contrib/selinux: Let interface users set paths for log, PID, socket filesStefano Brivio2023-03-091-1/+25
| | | | | | | | | | | | | | | | Even libvirt itself will configure passt to write log, PID and socket files to different locations depending on whether the domain is started as root (/var/log/libvirt/...) or as a regular user (/var/log/<PID>/libvirt/...), and user_tmp_t would only cover the latter. Create interfaces for log and PID files, so that callers can specify different file contexts for those, and modify the interface for the UNIX socket file to allow different paths as well. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Tested-by: Laine Stump <laine@redhat.com> Reviewed-by: Laine Stump <laine@redhat.com>
* contrib/selinux: Allow binding and connecting to all UDP and TCP portsStefano Brivio2023-03-091-12/+15
| | | | | | | | | | | | | | | | | | | | | Laine reports that with a simple: <portForward proto='tcp'> <range start='2022' to='22'/> </portForward> in libvirt's domain XML, passt won't start as it fails to bind arbitrary ports. That was actually the intention behind passt_port_t: the user or system administrator should have explicitly configured allowed ports on a given machine. But it's probably not realistic, so just allow any port to be bound and forwarded. Also fix up some missing operations on sockets. Reported-by: Laine Stump <laine@redhat.com> Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Tested-by: Laine Stump <laine@redhat.com> Reviewed-by: Laine Stump <laine@redhat.com>
* contrib/selinux: Let passt write to stdout and stderr when it startsStefano Brivio2023-03-091-0/+1
| | | | | | | | | | Otherwise, it's unusable as stand-alone tool, or in foreground mode, and it's also impossible to get output from --help or --version, because for SELinux it's just a daemon. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Tested-by: Laine Stump <laine@redhat.com> Reviewed-by: Laine Stump <laine@redhat.com>
* contrib/selinux: Drop duplicate init_daemon_domain() ruleStefano Brivio2023-03-091-1/+0
| | | | | | Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Tested-by: Laine Stump <laine@redhat.com> Reviewed-by: Laine Stump <laine@redhat.com>
* contrib/apparmor: Split profile into abstractions, use themStefano Brivio2023-02-273-60/+89
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | One day, libvirt might actually support running passt to provide guest connectivity. Should libvirtd (or virtqemud) start passt, it will need to access socket and PID files in specific locations, and passt needs to accept SIGTERM in case QEMU fails to start after passt is already started. To make this more convenient, split the current profile into two abstractions, for passt and for pasta, so that external programmes can include the bits they need (and especially not include the pasta abstraction if they only need to start passt), plus whatever specific adaptation is needed. For stand-alone usage of passt and pasta, the 'passt' profile simply includes both abstractions, plus rules to create and access PID and capture files in default or reasonable ($HOME) locations. Tested on Debian with libvirt 9.0.0 together with a local fix to start passt as intended, namely libvirt commit c0efdbdb9f66 ("qemu_passt: Avoid double daemonizing passt"). This is an example of how the libvirtd profile (or virtqemud abstraction, or virtqemud profile) can use this: # support for passt network back-end /usr/bin/passt Cx -> passt, profile passt { /usr/bin/passt r, owner @{run}/user/[0-9]*/libvirt/qemu/run/passt/* rw, signal (receive) set=("term") peer=/usr/sbin/libvirtd, signal (receive) set=("term") peer=libvirtd, include if exists <abstractions/passt> } translated: - when executing /usr/bin/passt, switch to the subprofile "passt" (not the "discrete", i.e. stand-alone profile), described below. Scrub the environment (e.g. LD_PRELOAD is dropped) - in the "passt" subprofile: - allow reading the binary - allow read and write access to PID and socket files - make passt accept SIGTERM from /usr/sbin/libvirtd, and libvirtd peer names - include anything else that's needed by passt itself Suggested-by: Andrea Bolognani <abologna@redhat.com> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* selinux/passt.te: Allow setting socket option on routing netlink socketStefano Brivio2023-02-211-1/+1
| | | | Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* selinux/passt.te: Allow /etc/resolv.conf symlinks to be followedStefano Brivio2023-02-211-0/+1
| | | | Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* selinux/passt.te: Allow setcap on the process itselfStefano Brivio2023-02-211-0/+1
| | | | | | | This is needed by the new functions in isolate.c, add the corresponding rule. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* selinux: Switch to a more reasonable model for PID and socket filesStefano Brivio2023-02-212-5/+7
| | | | | | | | Instead of restricting PID files to /var/run/passt.pid, which is a single file and unlikely to be used, use the user_tmp_t type which should cover any reasonable need. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* selinux: Define interfaces for libvirt and similar frameworksStefano Brivio2023-02-212-0/+27
| | | | | | | | | | Services running passt will commonly need to transition to its domain, terminate it, connect and write to its socket. The init_daemon_domain() macro now defines the default transition to the passt_t domain, using the passt_exec_t type. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* selinux/passt.if: Fix typo in passt_read_data interface definitionStefano Brivio2023-02-211-1/+1
| | | | | | | | | This is an example interface, currently unused, so it went undetected: m4 macros need a backtick at the beginning of a block instead of a single quote. Fixes: 1f4b7fa0d75d ("passt, pasta: Add examples of SELinux policy modules") Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* Remove contrib/debian, Debian package development now happens on SalsaStefano Brivio2022-11-166-63/+0
| | | | | | | | | The development of the Debian package is now at: https://salsa.debian.org/sbrivio/passt Drop contrib/debian, it's finally obsolete. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* contrib/apparmor: Merge pasta and passt profiles, update rulesStefano Brivio2022-11-162-88/+51
| | | | | | | | | | | | | AppArmor resolves executable links before profile attachment rules are evaluated, so, as long as pasta is installed as a link to passt, there's no way to differentiate the two cases. Merge the two profiles and leave a TODO note behind, explaining two possible ways forward. Update the rules so that passt and pasta are actually usable, once the profile is installed. Most required changes are related to isolation and sandboxing features. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* conf, log, Makefile: Add versioning informationStefano Brivio2022-10-151-1/+1
| | | | | | | Add a --version option displaying that, and also include this information in the log files. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* contrib/podman: Rebase to latest upstreamStefano Brivio2022-09-241-45/+50
| | | | | | One check moved from networking_linux.go to networking_common.go. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Escape % characters in spec file's changelog2022_09_06.e2cae8fStefano Brivio2022-09-071-1/+1
| | | | | | ...rpmbuild otherwise expands valid macro names in changelog entries. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Add selinux-policy Requires: tag2022_09_01.7ce9fd1Stefano Brivio2022-09-021-2/+5
| | | | | | | | | | | | | | | | fedora-review says: Note: Directories without known owners: /usr/share/selinux/packages/passt, /usr/share/doc/passt, /usr/share/selinux, /usr/share/selinux/packages and selinux-policy owns those two last ones. While at it, split Requires: tags also for post and preun actions onto different lines, for consistency. Reported-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Add %dir entries for own SELinux policy directory and documentationStefano Brivio2022-09-021-3/+5
| | | | | | | | | | | | | fedora-review says: Note: No known owner of /usr/share/selinux/packages/passt, /usr/share/doc/passt While at it, replace "passt" by "%{name}" in a few places for consistency. Reported-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* podman, slirp4netns.sh: Use --netns option on pasta's command line2022_08_29.0cb795eStefano Brivio2022-08-301-3/+3
| | | | | | | | | | ...instead of PATH. This seems to be the only change needed in existing pasta integrations after patch: Use explicit --netns option rather than multiplexing with PID Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
* contrib: Rebase Podman patch to latest upstreamStefano Brivio2022-08-301-47/+47
| | | | | | Trivial conflicts in man pages only. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Pass explicit bindir, mandir, docdir, and drop OpenSUSE overrideStefano Brivio2022-08-301-5/+1
| | | | | | | | | | | | Fedora's parameters currently match the ones from the Makefile (which is based on GNU recommendations), but that's not necessarily guaranteed. This should make the OpenSUSE Tumbleweed override for docdir unnecessary: drop it. Suggested-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Use full versioning for SELinux subpackage Requires: tagStefano Brivio2022-08-301-1/+1
| | | | | | | | ...as recommended in: https://docs.fedoraproject.org/en-US/packaging-guidelines/#_requiring_base_package Reported-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Define git_hash in spec file and reuse itStefano Brivio2022-08-301-2/+4
| | | | | | | | | ...as it's used twice. The short version, however, appears hardcoded only once in the output, and it comes straight from the rpkg macro building the version string -- leave that macro as it is. Suggested-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Drop comment stating the spec file is an example fileStefano Brivio2022-08-301-2/+0
| | | | | | | ...as this ends up in the actual spec file. Suggested-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Drop SPDX identifier from spec fileStefano Brivio2022-08-301-2/+0
| | | | | | | | | | | | | | | | ...which makes it fall under MIT licensing terms. Daniel reports that it's very unusual for spec files to contain explicit licensing terms and might cause minor inconveniences later on, on mass changes to spec files. I originally added licensing information using SPDX identifiers to make the project fully compliant with the REUSE Specification 3.0 (https://reuse.software/spec/), but there are anyway a few more files not including explicit licensing information. It might be worth to fix that later on, in any case. Suggested-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Adopt versioning guideline for snapshotsStefano Brivio2022-08-301-2/+5
| | | | | | | | | | | | The "Simple versioning" scheme: https://docs.fedoraproject.org/en-US/packaging-guidelines/Versioning/#_simple_versioning probably doesn't apply to passt, given that upstream git tags are not really releases. Switch to the "Snapshots" versioning scheme: https://docs.fedoraproject.org/en-US/packaging-guidelines/Versioning/#_snapshots Suggested-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* Makefile: Use more GNU-style directory variables, explicit docdir for OpenSUSE2022_08_21.7b71094Stefano Brivio2022-08-211-0/+4
| | | | | | | | | | | | | It turns out that, while on most distributions "docdir" would be /usr/share/doc, it's /usr/share/doc/packages/ on OpenSUSE Tumbleweed. Use an explicit docdir as shown in: https://en.opensuse.org/openSUSE:Build_Service_cross_distribution_howto and don't unnecessarily hardcode directory variables in the Makefile. Otherwise, RPM builds for OpenSUSE will fail now that we have a README there. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Fix man pages wildcards in spec fileStefano Brivio2022-08-201-5/+5
| | | | | | | | If the man pages are not compressed, the current wildcards wouldn't match them. Drop the trailing '.' from them. Reported-by: Artur Frenszek-Iwicki <fedora@svgames.pl> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Don't hardcode CFLAGS setting, use %set_build_flags macro insteadStefano Brivio2022-08-201-1/+1
| | | | | | | | | This will also set any distribution-specific LDFLAGS. It's not needed anymore starting from Fedora 36, but the package might be built on other versions and distributions too (including e.g. CentOS Stream 8). Reported-by: Artur Frenszek-Iwicki <fedora@svgames.pl> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Build SELinux subpackage as noarchStefano Brivio2022-08-201-0/+1
| | | | | | | | Otherwise, passt-selinux will be built separately for each supported architecture. Suggested-by: Artur Frenszek-Iwicki <fedora@svgames.pl> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Change source URL to HEAD link with explicit commit SHAStefano Brivio2022-08-202-2/+6
| | | | | | | | | This is required as Fedora doesn't accept a temporary pointer to a source URL. Reported-by: Ralf Corsepius <rc040203@freenet.de> Reported-by: Artur Frenszek-Iwicki <fedora@svgames.pl> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Drop VCS tag from spec fileStefano Brivio2022-08-201-1/+0
| | | | | | | | | It seems to be exposed by Koji (https://pagure.io/koji/issue/2541), but it's not actually in use, so we have to drop that. The website the URL tag points to reports all the needed information anyway. Reported-by: Artur Frenszek-Iwicki <fedora@svgames.pl> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Start Release tag from 1, not 0Stefano Brivio2022-08-201-1/+1
| | | | | | | | ...as specified by the Fedora Packaging Guidelines: https://docs.fedoraproject.org/en-US/packaging-guidelines/Versioning/#_simple_versioning Reported-by: Artur Frenszek-Iwicki <fedora@svgames.pl> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* fedora: Introduce own rpkg macro for changelogStefano Brivio2022-08-202-1/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | git_dir_changelog is useful in theory, but it requires pairs of annotated tags, which should be generated by rpkg itself to make any sense, implying a relatively heavyweight interaction whenever I want to push a new package version. Also, the default content of the changelog entries include the full list of changes, but the Fedora Packaging Guidelines specifically mention that: [t]hey must never simply contain an entire copy of the source CHANGELOG entries. We don't have a CHANGELOG file, but the full git history is conceptually equivalent for this purpose, I guess. Introduce our own passt_git_changelog() rpkg macro, building changelog entries, using tags in the form DATE-SHA, where DATE is an ISO 8601 date representation, and SHA is a short (7-digits) form of the head commit at a given moment (git push). These changelog entries mention, specifically, changes to the packaging information itself (entries under contrib/fedora), and simply report a link to cgit for the ranges between tags. Reported-by: Benson Muite <benson_muite@emailplus.org> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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