Commit Graph
237 Commits
Author SHA1 Message Date
Joachim Wiberg 2f4cdd0d9c Fix 'ip addr show proto NAME'
- Add support for proto by name in ip addr show
 - Add missing static protos, needed for show

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-05-21 09:00:10 +02:00
Joachim WibergandMattias Walström 23dc237403 Switch to PAM for system authentication
- Add sshd 'UsePAM yes'
 - Buildroot automatically adds and enables:
   - /etc/pam.d/ with authentication for login, sshd, and sudo
   - PAM support in BusyBox login

Also, prepare for adding RADIUS authentication support to ietf-system
the only tricky part is testing against a RADIUS server.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-05-15 16:06:08 +02:00
Tobias Waldekranz 50a9bba1c7 board/common: fdisk: Allow reformatting of disks
Assume that the caller always want to create a new partition table,
even in scenarios where one already exists. This allows devices to be
reprovisioned with a newer image, for example.

Fixes #394
2024-05-07 15:34:47 +02:00
Tobias Waldekranz 21ab842357 board/common: Fix incorrect path to /etc/partition-uuid
While we're here, fix some whitespace nits.
2024-05-07 15:34:47 +02:00
Joachim Wiberg f0205b0a35 board/common: document reserved syslog facilities
[skip ci]

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-05-05 18:15:03 +02:00
Joachim WibergandMattias Walström 6a8eaacc6e Replace python + rust based gencert2 with C based gencert3
Also, sync r2s_defconfig with latest major changes.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-05-03 15:33:00 +02:00
Joachim WibergandTobias Waldekranz 474820c44b Fix #424: regression, root user can log in without password
This fixes a serious security regression introduced late in the v24.04
release cycle.  The root cause is the placement of the shadow file in
the rootfs overlay, which causes any changes made by the Buildroot
setting BR2_TARGET_ENABLE_ROOT_LOGIN to be discarded/overwritten just
before creating the squashfs image.

The fix in this commit relocates all files from b4eb450 to the skeleton
in Infix, package/skeleton-init-finit/skeleton/etc, which is one of the
first packages to be installed when starting a build.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-05-03 07:54:48 +02:00
Joachim WibergandTobias Waldekranz a0df130852 board/common: relocate dagger script to confd tree
The dagger tool is a helper for scripts generated by confd and should
therefore be installed by confd instead of the rootfs overlay.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-05-03 07:54:48 +02:00
Joachim WibergandTobias Waldekranz 22c911f85e package/landing: new package
Relocate the default landing page from the rootfs overlay to a package
so that customer repos can override it.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-05-03 07:54:48 +02:00
Joachim WibergandTobias Waldekranz d1b0f69e18 board/common: minor, whitespace
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-30 15:51:17 +02:00
Joachim WibergandTobias Waldekranz 969ec1dd11 board/common: drop operator and staff, add backup user and group
- Free up 'operator' and 'staff' groups for NETCONF use
 - Reserve 'backup' user and group for future auto-backup (Debian)

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-30 15:51:17 +02:00
Joachim WibergandTobias Waldekranz a972966a02 board/common: override default Buildroot passwd and group files
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-30 15:51:17 +02:00
Joachim WibergandTobias Waldekranz 132dca844a board/common: disable lldpd on dsa0 interface
Fixes #404

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-29 14:31:40 +02:00
Joachim WibergandTobias Waldekranz bb18afa883 board/common: probe system base mac also on qemu systems
The base mac address is used by bridges in Infix.  This patch adds
support for extracting a base mac from the first interface "- 1",
e.g., if the mac address of e1 is 08:00:20:00:00:01, the base mac
will be 08:00:20:00:00:00.

This works with the Infamy test framework (Qeneth) and also with
the qemu script, included in this patch.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-29 08:44:44 +02:00
Joachim WibergandTobias Waldekranz adab286bf9 board/common: ensure /run/system.json is readable only wheel group
Writable by root, readble only by wheel members, e.g. admin.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-29 08:44:44 +02:00
Joachim WibergandTobias Waldekranz b993c8daa7 board/common: minor, fix a few pylint warnings
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-29 08:44:44 +02:00
Mattias WalströmandTobias Waldekranz ced93c89c7 grub: Select root partion from UUID 2024-04-22 14:22:50 +02:00
Joachim Wiberg c5015faafe dnsmasq: only listen on loopback :53, as local resolver
Even though dnsmasq only listened to requests from 127.0.0.1, port 53
was visible using nmap.  We only use dnsmasq as a local resolver, so
we can safely change the config to bind to loopback instead, and at
the same time get less noise from nmap scans.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-15 15:36:41 +02:00
Joachim Wiberg 76cf464a01 ttyd: run on 127.0.0.1:8801 to allow nginx on 0.0.0.0:7681
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-15 15:36:41 +02:00
Joachim Wiberg e5e97719e8 board/common: override default nginx landing page
This commit adds a landing page, generated from the top README.md.  It
is a temporary fix before adding a proper web ui.

Run ./gen.sh from the directory to update index.html using the template.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-15 15:36:41 +02:00
Joachim Wiberg 4ae641d65f confd: refactor services stop/start and add web netbrowse
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-15 15:36:41 +02:00
Joachim Wiberg 8bf78c2fbb board/common: relocate mkcert and fix openssl v3 x509 output
Not for public consumption.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-15 15:36:41 +02:00
Joachim Wiberg b3bb8a3075 confd: enable/disable nginx servers using available/enabled symlinks
Relocate all nginx .conf files to board/common/rootfs/etc/nginx/ and
introduce available/*.conf with symlinks to enabled/*.conf

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-15 15:36:41 +02:00
Joachim Wiberg efec5f57cd confd: make web server and web console interface configurable
This commit adds an initial YANG model for Infix web services under the
infix-services.yang umbrella.  For now the nginx server statements in
/etc/nginx/nginx.conf are always on, but the backend ttyd, and the
entire nginx server can be disabled.

The default in the YANG model for both is disabled, the factory-config
has been updated to enable these services by default.

The Web Console Interface mDNS service has been updated to advertise
on port 7681, which nginx is set to forward to ttyd.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-15 15:36:41 +02:00
Joachim Wiberg fc7d9bacac board/common: enable ttyd, web console app
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-15 15:36:41 +02:00
Joachim Wiberg 28cf5525bf board/common: add mkcert, generates self-signed HTTPS certificate
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-15 15:36:41 +02:00
Joachim Wiberg a4a1673f0f board/common: add route by named protocol
As the UNIX gods originally intended.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-11 06:19:07 +02:00
Joachim Wiberg c4d436a2fd board/common: drop unused schema mount
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-11 06:19:07 +02:00
Joachim Wiberg b55f74395b board/netconf: simplify and relocate to board/common
With Classic builds out of the way we can move everything back to common
again to simplify and reduce our collective cognitive overhead a bit.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-11 06:19:07 +02:00
Joachim Wiberg 493be97769 Drop legacy Classic builds
The Classic builds served for a while as an introduction to classic
embedded systems, with a user managed read-writable /etc.  Today we
decided to firmly take the plunge into the future with NETCONF and
focus on our core platforms aarch64 and x86_64 (for Qemu).

The reasons are several: reduce overhead, simplify build and release
work, as well as manual testing, since Classic builds do not have any
automated regression testing.

The Classic builds may be resurrected later in a dedicated project.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-11 06:19:07 +02:00
Mattias WalströmandJoachim Wiberg b350483617 Always enable coredumps
They will be availible in /var/crash/ (maximum one per process name)
2024-04-05 15:34:21 +02:00
Joachim Wiberg 1dcbea52b9 confd: handle ip/route additions to container networks at runtime
On any change to a container network interface we should schedule a
restart of the container to activate the changes.  This code triggers
also at boot, when applying the whole startup-config, which initctl
handles by queuing any create/touch events for services.

This patch depends on the two previous commtis backporing fixes to
Finit's initctl tool and an upgrade of the k8s-logger.

Fixes #375

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-03 16:08:37 +02:00
Joachim Wiberg ea3bfda2de board/common: fix issue where containers without network get network
Also, log the actual `podman create` arguments to the container log so
we can see what the script actually does when customers report bizarre
happenings with containers.

Fixes #370

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-03 16:08:37 +02:00
Joachim Wiberg fad75575e4 confd: add limited support for container capabilities
This change adds limited support for container capabilities.  It allows
a more fine-grained control than priviliged mode does.

Fixes #365

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-03 16:08:37 +02:00
Joachim Wiberg 9575e03dc9 board/common: fix container upgrde for oci-archive:/ images
Add exception for local images, the "pull" step must be handled by the
operator, i.e., wget of the latest image to the same location as set up
in the image configuration, e.g., for oci-archive:/tmp/foo.tar.gz that
/tmp/foo.tar.gz exists when issuing the upgrade command.

Fixes #368

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-04-03 16:08:37 +02:00
Mattias Walström a0f09a1c06 Add script that generates a certificate with unlimited expiredate
Primary use is to generate default HTTPS certificate.

Sample usage:
/bin/gencert --country SE --state Vastmanland --city Vasteras --organisation ACME --organisation-unit Second  --common-name switch.local --out-certificate /tmp/out.cert --out-key /tmp/out.key
2024-03-20 14:19:52 +01:00
Joachim Wiberg eec5546100 board/common: add missing newline at end of /etc/motd
With the changes in 9847a8f we can keep the /etc/motd file with a proper
newline at EOF so that also Classic builds make sense.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-03-01 20:19:17 +01:00
Joachim Wiberg 84391c18a4 board/common: introduce Debian-like alternatives system
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-03-01 14:13:06 +01:00
Joachim Wiberg 360d3b322d confd: use podman stop/start to prevent container corruption
Sending SIGTERM to conmon is not a safe shutdown of a podman container.
To handle gracefully handle shutdown, restarting and provide an orderly
start of dependencies, we use the Finit sysv trick via container script
wrapper to call 'podman stop foo'.

However, since podman does not support syslog as output for containers
we employ an old FIFO trick with another program, k8s-logger, to allow
logs to reach syslog.  Please note that k8s-logger must have properly
started before we call `podman start` -- this makes us fully dependent
on the 'container' wrapper script.  Hence the documentation update.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-02-25 19:49:27 +01:00
Joachim Wiberg a530db9ae5 board/common: confine containers in their own parent cgroup
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-02-25 19:49:27 +01:00
Joachim Wiberg 337f39a74d board/common: quiet flag and check if running for start/stop
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-02-25 19:49:27 +01:00
Joachim Wiberg 3b5c0248d7 confd: handle factory-default RPC better wrt. container networks
Because sysrepo callbacks are threaded and factory-default RPC is called
from a separate subscription (to prevent blocking), we cannot prevent
ietf-intefaces.c from being called before infix-containers.c, regardless
of the priority we set for our subscriptions.

When assigning a physical network interface this becomes a bit of a pain
during factory-default RPC since the physical interface is hidden from
the host network namespace.

So, when applying factory to running, we check each interface if it was
a container-network previously, if so we call on the container script in
the exit of the current dagger generation to move the interface back to
the host netns.

This affects all other functions that assume interfaces only live in the
host netns.  To that end a set of new helper functions have been added
to wrap iproute2 commands in nsenter when the interface lives elsewhere.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-02-25 19:49:27 +01:00
Joachim Wiberg 61cba2615f confd: make container privileged mode configurable
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-02-25 19:49:27 +01:00
Joachim Wiberg a6f6fcac6a confd: add support for oci: and oci-archive: images
1. add support for extracting, and finding the directory holding the
    index.json metadata file in, OCI images.  An archive in Infix is either
    a .tar or .tar.gz archive, which we need to unpack for this version of
    podman to be able to load them.
 2. new RPC '/infix-containers:oci-load' calls 'container load' of an
    OCI archive (tarball), optionally gzipped.  The resulting image uses
    the directory name of the unpacked tarball, so the container script
    offers a way to retag the image after loading it.

First class citizens in container transport are docker:// and the OCI
family of URI:s.  A docker:// URL, or a local docker-archive:path, is
assumed to be well formed, in which case we leave it up to podman to
handle.

Note: 'podman import' does not fully understand OCI formats.  It drops
      ENTRYPOINT and COMMAND, while 'podman load' handles things a lot
      better.  Only letdown is it does not support nameing the image.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-02-25 19:49:27 +01:00
Joachim Wiberg 580599f549 confd: misc. fixes and cleanup
- drop debug logs
 - no need to restart upgraded containers, they restart automatically
 - fix ordering in volume prune (when containers are removed)
 - skip directories in container activation (inbox -> execd queue)
 - Fix 'container pull IMG creds USER[:PASS]' bug, extra '=' variable
   assignment inside infix.xml
 - Fix 'container run IMG CMD ARGS' to actually put the CMD in
   ENTRYPOINT and append ARGS to image.  The podman run and create
   commands are *not* behaving the same way
 - Rename 'attach' to 'exec', execute command inside an running container
 - Add 'container [shell | connect]' to start shell in -- " -- " -- " --
 - Add 'container [stat | cleanup | usage stats]' commands
 - Add in="tty" to commands thay may end up being interactive
 - Split <ACTION> line into multiple lines for readability
 - Fix container shift logic:

     root@infix-00-00-00:/> show container
     /usr/sbin/container: line 361: shift: shift count out of range

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-02-25 19:49:27 +01:00
Joachim Wiberg cd4e8b0a9f confd: add support for mounting read-only files in containers
In the container configuration context:

    edit file ntp.conf
    set path /etc/ntp.conf
    set content

The last command opens a text editor where you can paste the contents
of the file.  This is stored base64 encoded in the datastore as well
as in JSON/XML.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-02-25 19:49:27 +01:00
Joachim Wiberg 31502c8aab confd: add support for upgrading container images
This patch adds a new CLI command 'container upgrade foo', where 'foo'
is the name of the container.  If more than one container use the same
image, multiple upgrades must be done because a container runs not on
the 'image:tag' but on the hash of the 'image:tag' it was created from.

Rename "done" queue to "active", since we want to recreate an active
container after fetching an updated base image.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-02-25 19:49:27 +01:00
Joachim Wiberg aafa88b648 confd: add support for container volumes
This commit adds support for writable container volumes.  A volume, when
compared to a mount, is a writable directory created when the container
starts and is automatically rsync'ed with the underlying directory it
is mounted on on first use.  A mount otoh does not rsync so it results
only in an empty directory inside the container.

The podman/docker mount feature will be used later to bind mount single
files or sharing directories from the host, e.g., /sys/class/leds/ to
one of more containers.

Note: unused volumes are automatically pruned.  Hence, a volume
      currently cannot be moved to another container.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-02-25 19:49:27 +01:00
Joachim Wiberg 256c462c0c confd: add support for read-only containers
This creates a container without a writable layer.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-02-25 19:49:27 +01:00
Joachim Wiberg d8dde9cde2 confd: add support for custom container ENTRYPOINT
This was a tough nut to crack.  Turns out the trick to changing the
ENTRYPOINT is to set --entrypoint=command and then call 'podman create
... command args'.  Not entirely obvious since the documented approach
is to use a JSON array as the argument: podman create
--entrypoint='["command", "args" ]'.

Admittedly, encoding this in C to transfer it via a POSIX shell script
to the command line, is not the easiest task I've undertaken.  So I gave
up and found this workaround.

Worth noting, however, is that one *must* set `--entrypoint`, it is not
enough to just append the command to the 'podman create' command line.
Due to differences in docker and podman, we cannot supply the full args
to an alternate entrypoint command.  But for the command to actually run
we need to override the image's ENTRYPOINT and send the command and args
as the last arguments on the command line to podman create.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2024-02-25 19:49:27 +01:00