sd_notify is not synchronous, iow. it only waits until the message
reaches the queue not until it is processed by systemd
when the process that sent such a message exits before systemd could
process it, it cannot be associated to the correct pid
so in case of reloading, we send a message with 'MAINPID=<newpid>'
to signal that it will change. if now the old process exits before
systemd knows this, it will not accept the 'READY=1' message from the
child, since it rejects the MAINPID change
since there is no (AFAICS) library interface to check the unit status,
we use 'systemctl is-active <SERVICE_NAME>' to check the state until
it is not 'reloading' anymore.
on newer systemd versions, there is 'sd_notify_barrier' which would
allow us to wait for systemd to have all messages from the current
pid to be processed before acknowledging to the child, but on buster
the systemd version is to old...
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
log invalid owners to system log, and continue with next group just as
if permission checks fail for the following operations:
- verify store with limited permissions
- list store groups
- list store snapshots
all other call sites either handle it correctly already (sync/pull), or
operate on a single group/snapshot and can bubble up the error.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
for more useful log output
old:
Nov 10 11:50:51 foo pvestatd[3378]: proxmox-backup-client failed: Error: error trying to connect: tcp connect error: No route to host (os error 113)
new:
Nov 10 11:55:21 foo pvestatd[3378]: proxmox-backup-client failed: Error: error trying to connect: error connecting to https://thebackuphost:8007/ - tcp connect error: No route to host (os error 113)
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
similar to what we do for zfs. By bailing before partitioning, the disk is
still considered unused after a failed attempt.
Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
If a package is or will be installed from the enterprise repo, retrieve
the changelog from there as well (securely via HTTPS and authenticated
with the subcription key).
Extends the get_string method to take additional headers, in this case
used for 'Authorization'. Hyper does not have built-in basic auth
support AFAICT but it's simple enough to just build the header manually.
Take the opportunity and also set the User-Agent sensibly for GET
requests, just like for POST.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
to easily check the store of a worker_id
this fixes the issue that one could not filter by type 'syncjob' and
datastore simultaneously
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
very basic, based on API/concepts of PVE one.
Still missing, addint an extra_info string option to APTUpdateInfo
and pass along running kernel/PBS version there.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Clippy complains about the number of paramters we have for
create_archive and it really does need to be made somewhat
less awkward and more usable. For now we just log to stderr
as we previously did. Added todo-comments for this.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
the basedir is already /usr/share/javascript/proxmox-backup/
so adding a subdir of that as alias is not needed
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
with remote Authids, not local Userids.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
if the user/token could have either configured/manually executed the
task, but it was either executed via the schedule (root@pam) or
another user/token.
without this change, semi-privileged users (that cannot read all tasks
globally, but are DatastoreAdmin) could schedule jobs, but not read
their logs once the schedule executes them. it also makes sense for
multiple such users to see eachothers manually executed jobs, as long as
the privilege level on the datastore (or remote/remote_store/local
store) itself is sufficient.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
since the store is not a path parameter, we need to do manual instead of
schema checks. also dropping Datastore.Backup here
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
to allow on-demand scanning of remote datastores accessible for the
configured remote user.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
instead of await'ing the result of 'create_service' directly,
poll it together with the shutdown_future
if we reached that, fork_restart the new daemon, and await
the open future from 'create_service'
this way the old process still handles open connections until they finish,
while we already start a new process that handles new incoming connections
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
they are not an error and we should retry the read
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
when a file shrunk during backup, we endlessly looped, reading/copying 0 bytes
we already have code that handles shrunk files, but we forgot to
break from the read loop
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
we have information here not available in the access log, especially
if the /api2/extjs formatter is used, which encapsulates errors in a
200 response.
So keep the auth log for now, but extend it use from create ticket
calls to all authentication failures for API calls, this ensures one
can also fail2ban tokens.
Do that logging in a central place, which makes it simple but means
that we do not have the user ID information available to include in
the log.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
add all of our configuration files in /etc/proxmox-backup/ further,
call some ZFS tool to get that status.
Also, use the subscription command form manager, as we often require
more info than the status. Also, adapt formatting a bit.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
those are not in a hot code path, and it is not really much work to
build them on the go..
It may not matther much, but it is unnecessary. Rust will probably
inline most of it anyway..
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
and change all users of the /status/tasks api call to this
with this change we can now delete the /status/tasks api call
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
instead of returning 0 elements (which does not really make sense anyway),
change it so that there is no limit anymore (besides usize::MAX)
this is technically a breaking change for the api, but i guess
no one is using limit=0 for anything sensible anyway
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
in the api we use PROXMOX_SAFE_ID_REGEX for backup ids, but here
(where we use it to list them) we use a local regex
since the first is a superset of the one used here, simply extend
the local one
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
should cover all the current scenarios. remote server-side checks can't
be meaningfully unit-tested, but they are simple enough so should
hopefully never break.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
in case the garbage_collection errors out, we never set the in-memory
state, so if it failed, the last 'good' starttime was considered
for the schedule
this could lead to the job running every minute instead of the
correct schedule
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
instead of manually, this has the advantage that we now set
the jobstate correctly and can return with an error if it is
currently running (instead of failing in the task)
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
index files that were smaller than their respective header size,
would fail with
"failed to fill whole buffer"
instead now check explicitely for the size and fail with
"index too small (size)"
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
try do reduce some unecessary lines, make match arms more precise so
one can faster see what's actually happening.
Also, avoid
> return Err(format_err!(...))
stuff, just use bail!()
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
re-use the future we already have for task log rotation to trigger
it.
Move the FileLogger in ApiConfig into an Arc, so that we can actually
update it and REST using the new one.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
so that we can easily get the main PID of the last recently launched
daemon. Will be used to get the control socket of that one for access
lgo rotate in a future patch
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
this is internal for now, use the comanndo socket struct
implementation, and ideally not a new one but the existing ones
created in the proxy and api daemons.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Allows to extend the use of that socket in the future, e.g., for log
rotate re-open signaling.
To reflect this we use a more general name, and change the commandos
to a more clear namespace.
Both are actually somewhat a breaking change, but the single real
world issue it should be able to cause is, that one won't be able to
stop task from older daemons, which still use the older abstract
socket name format.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
This is a preparatory step to replace the task control socket with it
and provide a "reopen log file" command for the rest server.
Kept it simple by disallowing to register new commands after the
socket gets spawned, this avoids the need for locking.
If we really need that we can always wrap it in a Arc<RWLock<..>> or
something like that, or even nicer, register at compile time.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
writing to a file can explode quite easily.
time formatting to rfc3339 should be more robust, but it has a few
conditions where it could fail, so catch that too (and only really
do it if required).
The writes to stdout are left as is, it normally is redirected to
journal which is in memory, and thus breaks later than most stuff,
and at that point we probably do not care anymore anyway.
It could make sense to actually return a result here..
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
We renamed the last one always to a file without compression
extension, even if it was .zst previously. So always add the correct
ending to the new last one, if compress was true.
Further, we cannot detect if there'd be a compression required if we
rotated (renamed) it already to the file with .zst included.
So check on rotation itself if it would be a "no .zst" -> ",zst"
transition, and call compress there.
it really should be OK now *knocking wood*
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
by requiring
- Datastore.Backup permission for target datastore
- Remote.Read permission for source remote/datastore
- Datastore.Prune if vanished snapshots should be removed
- Datastore.Modify if another user should own the freshly synced
snapshots
reading a sync job entry only requires knowing about both the source
remote and the target datastore.
note that this does not affect the Authid used to authenticate with the
remote, which of course also needs permissions to access the source
datastore.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
instead of hard-coding 'backup@pam'. this allows a bit more flexibility
(e.g., syncing to a datastore that can directly be used as restore
source) without overly complicating things.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
no idea why I added it as "delete", for all other such operations we
use the "remove" sub-command...
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
again, base idea copied off PVE, but, we safe the information about
which pending version we send a mail out already in a separate
object, to keep the api return type APTUpdateInfo clean.
This also makes a few things a bit easier, as we can update the
package status without saving/restoring the notify information.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
apt changes some of its state/cache also if it errors out, most of
the time, so we actually want to print both, stderr and stdout.
Further, only warn if its exit code is non-zero, for the same
rationale, it may bring updates available even if it errors (e.g.,
because a future pbs-enterprise repo is additionally configured but
not accessible).
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
it's not used anywhere, and not needed either until the day we might
implement push syncs.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
equivalent to verifying a whole datastore, except for reading job
(entries), which is accessible to regular Datastore.Audit/Backup users
as well.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
for verifying a whole datastore. Datastore.Backup now allows verifying
only backups owned by the triggering user.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
they are returned when reading the manifest, which just requires
Datastore.Audit as well. Datastore.Read is for reading backup contents,
not metadata.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
even for otherwise unprivileged users.
since effective privileges of an API token are always intersected with
those of their owning user, this does not allow an unprivileged user to
elevate their privileges in practice, but avoids the need to involve a
privileged user to deploy API tokens.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
a user should be allowed to read/list/overwrite backups owned by their
own tokens, but a token should not be able to read/list/overwrite
backups owned by their owning user.
when changing ownership of a backup group, a user should be able to
transfer ownership to/from their own tokens if the backup is owned by
them (or one of their tokens).
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
since it's not possible to extend existing structs, UserWithTokens
duplicates most of user::User.. to avoid duplicating user::ApiToken as
well, this returns full API token IDs, not just the token name part.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
in most generic places. this is accompanied by a change in
RpcEnvironment to purposefully break existing call sites.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
with an optional Tokenname, appended with '!' as delimiter in the string
representation like for PVE.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Make it more clear that removed files are chunks (not indexes or
something like that, user cannot know that we do not touch them here)
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
fixes commit b4fb262335, which copied
over the "Removed bad files:" block, but only adapted the log text,
not the actual variable.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
instead of prerotating 1000 tasks
(which resulted in 2 writes each time an active worker was finished)
simply append finished tasks to the archive (which will be rotated)
page cache should be good enough so that we can get the task logs fast
since existing installations might have an 'index' file, we
still have to read tasks from there, but only if it exists
this simplifies the TaskListInfoIterator a good amount
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
by moving the properties of the storage status out again to the top
level object
also introduce proper structs for the types used, to get type-safety
and better documentation for the api calls
this changes the backup counts from an array of [groups,snapshots] to
an object/struct with { groups, snapshots } and include 'other' types
(though we do not have any at this moment)
this way it is better documented
this also adapts the ui code to cope with the api changes
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
saves files mtime as i64 instead of u64 which enables backup of
files with negative mtime
the catalog_decode_i64 is compatible to encoded u64 values (if < 2^63)
but not reverse, so all "old" catalogs can be read with the new
decoder, but catalogs that contain negative mtimes will decode wrongly
on older clients
also remove the arbitrary maximum value of 2^63 - 1 for
encode_u64 (we just use up to 10 bytes now) and correctly
decode them and update the comments accordingly
adds also test for i64 encode/decode and for compatibility between
u64 encode and i64 decode
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
fixes commit 16f9f244cf which extended
the return schema of the status API but did not adapted the client
status command to that.
Simply define our own tiny return schema and use that.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
we never actually compressed any files, since we only looked at
the extension:
* if it was 'zst' (which was always true for newly rotated files), we
would not compress it
* even if it was not 'zst', we compressed it inplace, never adding '.zst'
(possibly compressing them multiple times as zstd)
now we add new rotated files simply as '.X' and add a 'target' to the
compress fn, where we rename it to (but now we have to unlink the source
path)
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
commit a4915dfc2b made a wrong fix, as
it did not observed that the last expressions was done under the
invariant that we had a last verification result, because if none
could be loaded we already returned true (include).
It thus broke the case for "never re-verify", which is important when
using multiple schedules, a more high frequent one for new,
unverified snapshots, and a low frequency to re-verify older snapshots,
e.g., monthly.
Fix this case again, rework the code to avoid this easy to oversee
invariant. Use a nested match to better express the implication of
each setting, and add some comments.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
and load it again when opening it
this way we can persist the status of the last garbage collect across
daemon reloads and reboots
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
This is intended for when the server needs to do requests on
arbitrary, non PBS, external HTTP resources.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
we're a bit strict here what we accept, rather than changing that
lets do it like PVE/PMG and uppercase.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
This is indented to be used for the PVE storage library, replacing
the missuse of the much more expensive status API call.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
For proxmox packages it works the same way as PVE, by retrieving the
changelog URL and issuing a HTTP GET to it, forwarding the output to the
client. As this is only supposed to be a workaround removed in the
future, a simple block_on is used to avoid async.
For debian packages we can simply call 'apt-get changelog' and forward
it's output.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
As always, libapt is mocking us with complexity, but we can get the
approximate result we want by retrieving dependencies of all
to-be-updated packages and then seeing if they are missing.
If they are, we assume they will be installed.
For this, query_detailed_info is extended to allow reading details for
non-installed packages, and this is also exposed in
list_installed_apt_packages via 'all_versions_for'. This is necessary so
we can retrieve changelogs for such packages.
Note that we cannot retrieve all that information all the time, as
querying details for packages that aren't installed takes a rather long
time.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Avoids custom hardcoded logic, but can only be used for debian packages
as of now. Adds a FIXME to switch over to use --print-uris only once our
package repos support that changelog format.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
To get package details for a specific version instead of only the
candidate.
Also cleanup filter function with extra struct instead of unnamed &str
parameters.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
...to avoid having the tools:: module depend on api2.
The get_string function is based directly on hyper and thus relatively
simple, not supporting redirects for example.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
gets rid of the return value and moving around of the zip
and decoder data
avoids cloning the path prefix on every recursion
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
by using the new ZipEncoder and recursively add files to it
the zip only contains directories, normal files and hardlinks (by simply
copying the content), no symlinks, etc.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
similar to StdChannelWriter, but implements AsyncWrite and sends
to a tokio::sync::mpsc::Sender
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
This modules contains the 'ZipEncoder' struct, which wraps an async writer,
to create a ZIP archive on the fly
To create a ZIP file, have a target that implements AsyncWrite,
give it to ZipEncoder::new, add entries via 'add_entry' and
at the end, call 'finish'
for now, this does not implement compression (uses ZIPs STORE mode), and
does not support empty directories or hardlinks (or any other special
files)
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Fixes a bug in which the userid of the ticket cache is updated,
when a user connects, but the ticket itself is not.
This means a newly connected user has a previously connected
user's ticket and thus, cannot do anything, as the client will
attempt to use the invalid ticket.
e.g. if john@pbs connected to the server first, followed by
mike@pbs, the following would be stored in the ticket cache.
{
"localhost": {
"mike@pbs": {
"ticket": "PBS:john@pbs:AAAA",
"timestamp": 1601039326,
"token": "BBBB"
}
}
}
Signed-off-by: Dylan Whyte <d.whyte@proxmox.com>
The first rotation is normally the one still opened by one or more
processes for writing, so it must NOT be replaced, removed, ..., as
this then makes the remaining logging, until those processes are
noticed that they should reopen the logfile due to rotation, goes
into nirvana, which is far from ideal for a log.
Only rotating (renaming) is OK for this active file, as this does not
invalidates the file and keeps open FDs intact.
So start compressing with the second rotation, which should be clear
to use, as all writers must have been told to reopen the log during
the last rotation, reopen is a fast operation and normally triggered
at least day ago (at least if one did not dropped the state file
manually), so we are fine to archive that one for real.
If we plan to allow faster rotation the whole rotation+reopen should
be locked, so that we can guarantee that all writers switched over,
but this is unlikely to be needed.
Again, this is was logrotate sanely does by default since forever.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
this is not the job of logrotate, and the real 20+ years battle
tested log rotate binary does not do so either as it's actually
pretty dangerous.
If we "replace" the file we break any logger which already opened a
new one here, e.g., a dameon starting up, and thus that writer would
log to nirvana.
It's the job of a logger to create a file if not existing, it makes
no sense to do it here.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
To cater to the paranoid, a new datastore-wide setting "verify-new" is
introduced. When set, a verify job will be spawned right after a new
backup is added to the store (only verifying the added snapshot).
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Force consumers to use the lookup_datastore method instead of
potentially opening a datastore twice, and pass the config we have
already loaded into open_with_path, removing the need for open(1).
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Commit 9070d11f4c introduced this change for other call sites,
assuming it is correct, this one was missed.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
and use that in ApiConfig to avoid that it is owned by root if the
proxmox-backup-api process creates it first.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
for now log auth errors also to the syslog, on a protected (LAN
and/or firewalled) setup this should normally happen due to
missconfiguration, not tries to break in.
This reduces syslog noise *a lot*. A current full journal output from
the current boot here has 72066 lines, of which 71444 (>99% !!) are
"successful auth for user ..." messages
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
reuse the FileLogger module in append mode.
As it implements write, which is not thread safe (mutable self) and
we use it in a async context we need to serialize access using a
mutex.
Try to use the same format we do in pveproxy, namely the one which is
also used in apache or nginx by default.
Use the response extensions to pass up the userid, if we extract it
from a ticket.
The privileged and unprivileged dameons log both to the same file, to
have a unified view, and avoiding the need to handle more log files.
We avoid extra intra-process locking by reusing the fact that a write
smaller than PIPE_BUF (4k on linux) is atomic for files opened with
the 'O_APPEND' flag. For now the logged request path is not yet
guaranteed to be smaller than that, this will be improved in a future
patch.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Add a generous limit now and return the correct error (414 URI Too
Long). Otherwise we could to pretty larger GET requests, 64 KiB and
possible bigger (at 64 KiB my simple curl test failed due to
shell/curl limitations).
For now allow a 3072 characters as combined length of URI path and
query.
This is conform with the HTTP/1.1 RFCs (e.g., RFC 7231, 6.5.12 and
RFC 2616, 3.2.1) which do not specify any limits, upper or lower, but
require that all server accessible resources mus be reachable without
getting 414, which is normally fulfilled as we have various length
limits for stuff which could be in an URI, in place, e.g.:
* user id: max. 64 chars
* datastore: max. 32 chars
The only known problematic API endpoint is the catalog one, used in
the GUI's pxar file browser:
GET /api2/json/admin/datastore/<id>/catalog?..&filepath=<path>
The <path> is the encoded archive path, and can be arbitrary long.
But, this is a flawed design, as even without this new limit one can
easily generate archives which cannot be browsed anymore, as hyper
only accepts requests with max. 64 KiB in the URI.
So rather, we should move that to a GET-as-POST call, which has no
such limitations (and would not need to base32 encode the path).
Note: This change was inspired by adding a request access log, which
profits from such limits as we can then rely on certain atomicity
guarantees when writing requests to the log.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
needs new proxmox dependency to get the RpcEnvironment changes,
adding client_ip getter and setter.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Rewrite most of the documentation to be more readable and correct
(according to the current implementations).
Add a table visualizing all different locks used to synchronize
concurrent operations.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Contains a link to the 'backup' module's doc, as that explains a lot
about the inner workings of PBS and probably marks a good entry point
for new readers.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Avoid races when updating manifest data by flocking a lock file.
update_manifest is used to ensure updates always happen with the lock
held.
Snapshot deletion also acquires the lock, so it cannot interfere with an
outstanding manifest write.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
The 'Ok::<_, Self::Error>(res)' type annotation was from a time where
we could not use async, and had a combinator here which needed
explicity type information. We switched over to async in commit
91e4587343 and, as the type annotation
is already included in the Future type, we can safely drop it.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Given the .pxarexclude file
foo
/bar
The following happens:
exclude: /foo
exclude: /bar
exclude: /subdir/foo
include: /subdir/bar
since the `/bar` line is an absolute path
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Removing a snapshot has some more safety checks which we don't want to
ignore when removing an entire group (i.e. locking the manifest and
notifying GC).
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
There's no point in having that as a seperate method, just parse the
thing into a struct and write it back out correctly.
Also makes further changes to the method simpler.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
If we can't acquire a lock (either because the snapshot disappeared, it
is about to be forgotten/pruned, or it is currently still running) skip
the snapshot. Hold the lock during verification, so that it cannot be
deleted while we are still verifying.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
...to avoid it being forgotten or pruned while in use.
Update lock error message for deletions to be consistent.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
To allow other reading operations on the base snapshot as well. No
semantic changes with this patch alone, as all other locks on snapshots
are exclusive.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
A removal can fail if the snapshot is already gone (this is fine, our
job is done either way) or we couldn't get a lock (also fine, it can't
be removed then, just warn the user so he knows what happened and why it
wasn't removed) - keep going either way.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
A snapshot that's currently being read can still appear in the prune
list, but should not be removed.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
This adds a change-owner command to proxmox-backup-client,
that allows a caller with datastore modify privileges
to change the owner of a backup-group.
Signed-off-by: Dylan Whyte <d.whyte@proxmox.com>
To untangle the server code from the actual backup
implementation.
It would be ideal if the whole backup/ dir could become its
own crate with minimal dependencies, certainly without
depending on the actual api server. That would then also be
used more easily to create forensic tools for all the data
file types we have in the backup repositories.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Used to not require access to the WorkerTask struct outside
the `server` and `api2` module, so it'll be easier to
separate those backup/server/client parts into separate
crates.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
This is only acquired in those two methods, both as shared. So it has
no use.
It seems, that it was planned in the past that the index deletion
should take the exclusive, while read and write takes the shared
flock on the index, as one can guess from the lock comments in commit
0465218953
But then later, in commit c8ec450e37)
the documented semantics where changed to use a temp file and do an
atomic rename instead for atomicity.
The reader shared flock on the index file was done inbetween,
probably as preparatory step, but was not removed again when strategy
was changed to using the file rename instead.
Do so now, to avoid confusion of readers and a useless flock.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
via HTTP2/backup reader protocol. they already could do so via the plain
HTTP download-file/.. API calls that the GUI uses, but the reader
environment required READ permission on the whole datastore instead of
just BACKUP on the backup group itself.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
a reader connection should not be allowed to read arbitrary chunks in
the datastore, but only those that were previously registered by opening
the corresponding index files.
this mechanism is needed to allow unprivileged users (that don't have
full READ permissions on the whole datastore) access to their own
backups via a reader environment.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
not triggered by any current code, but this would lead to a stack
exhaustion since borrow would call deref which would call borrow again..
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Previously only Datastore.Modify was required for creating a new
datastore.
But, that endpoint allows one to pass an arbitrary path, of which all
parent directories will be created, this can allow any user with the
"Datastore Admin" role on "/datastores" to do some damage to the
system. Further, it is effectively a side channel for revealing the
systems directory structure through educated guessing and error
handling.
Add a new privilege "Datastore.Allocate" which, for now, is used
specifically for the create datastore API endpoint.
Add it only to the "Admin" role.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
avoiding the need for reshuffling all bits when a new privilege is
added at the start or in the middle of this definition.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
If a fuse_loop instance dies suddenly (e.g. SIGKILL), the FUSE mount and
loop device assignment are left behind. We can determine this scenario
on specific unmap, when the PID file is either missing or contains a PID
of a non-running process, but the backing file and potentially loop
device are still there.
If that's the case, do an "emergency cleanup", by unassigning the
loopdev, calling 'fusermount -u' and then cleaning any leftover files
manually.
With this in place, pretty much any situation is now recoverable via
only the 'proxmox-backup-client' binary, by either calling 'unmap' with
or without parameters.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
On unmap, only report success if the instance we are killing actually
terminates. This is especially important so that cleanup routines can be
assured that /run files are actually cleaned up after calling
cleanup_unused_run_files.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
A 'map' call will only clean up what it needs, that is only leftover
files or dangling instances of it's own name.
For a full cleanup the user can call 'unmap' without any arguments.
The 'cleanup on error' behaviour of map_loop is removed. It is no longer
needed (since the next call will clean up anyway), and in fact fixes a
bug where trying to map an image twice would result in an error, but
also cleanup the .pid file of the running instance, causing 'unmap' to
fail afterwards.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
So user doesn't need to remember which loop devices he has mapped to
what.
systemd unit encoding is used to transform a unique identifier for the
mapped image into a suitable name. The files created in /run/pbs-loopdev
will be named accordingly.
The encoding all happens outside fuse_loop.rs, so the fuse_loop module
does not need to care about encodings - it can always assume a name is a
valid filename.
'unmap' without parameter displays all current mappings. It's
autocompletion handler will list the names of all currently mapped
images for easy selection. Unmap by /dev/loopX or loopdev number is
maintained, as those can be distinguished from mapping names.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
the same as the regular TaskState, but without its fields, so that
we can use the api macro and use it as api call parameter
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Allows mapping fixed-index .img files (usually from VM backups) to be
mapped to a local loopback device.
The architecture uses a FUSE-backed temp file mapped to a loopdev:
/dev/loopX -> FUSE /run/pbs-loopdev/xxx -> backup client -> PBS
Since unmapping requires some cleanup (unmap the loopdev, stop FUSE,
remove the temp files) a special 'unmap' command is added, which uses a
PID file to send SIGINT to the backup-client instance started with
'map', which will handle the cleanup itself.
The polling with select! in mount.rs needs to be split in two, since we
have a chicken and egg problem between running FUSE and setting up the
loop device - so we need to do them concurrently, until the loopdev is
assigned, at which point we can report success and daemonize, and then
continue polling the FUSE loop future.
A loopdev module is added to tools containing all required functions for
mapping a loop device to the FUSE file, with the ioctls moved into an
inline module to avoid exposing them directly.
The client code is placed in the 'mount' module, which, while
admittedly a loose fit, allows reuse of the daemonizing code.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
if the archive file does not exist yet, we cannot rotate it, but it's not
actually an error, so just return Ok(false) to indicate no rotation took
place
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
while we probably do not add much more to them, it still looks ugly.
If this was made so that adding a World readable API call is "hard"
and not done by accident, it rather should be done as a test on build
time. But, IMO, the API permission schema definitions are easy to
review, and not often changed/added - so any wrong World readable API
call will normally still caught.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
In theory, one can do std::mem::forget, and ignore the drop handler. With
the lifetime hack, this could result in a crash.
So we simply require 'static lifetime now (futures also needs that).
Causes a panic if last_update is smaller than RRD_DATA_ENTRIES*reso,
which (I believe) can happen when inserting the first value for a DB.
Clamp the value to 0 in that case.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Fix a potential bug where errors that happen after the SendHandle has
been dropped while doing the thread join might have been ignored.
Requires internal check_abort to be moved out of 'impl SendHandle' since
we only have the Mutex left, not the SendHandle.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
This can slow things down by a lot on setups with (relatively) high
seek time, in the order of doubling the backup times if cache isn't
populated with the last backups chunk inode info.
Effectively there's nothing known this protects us from in the
codebase. The only thing which was theorized about was the case
where a really long running backup job (over 24 hours) is still
running and writing new chunks, not indexed yet anywhere, then an
update (or manual action) triggers a reload of the proxy. There was
some theory that then a GC in the new daemon would not know about the
oldest writer in the old one, and thus use a less strict atime limit
for chunk sweeping - opening up a window for deleting chunks from the
long running backup.
But, this simply cannot happen as we have a per datastore process
wide flock, which is acquired shared by backup jobs and exclusive by
GC. In the same process GC and backup can both get it, as it has a
process locking granularity. If there's an old daemon with a writer,
that also has the lock open shared, and so no GC in the new process
can get exclusive access to it.
So, with that confirmed we have no need for a "half-assed"
verification in the backup finish step. Rather, we plan to add an
opt-in "full verify each backup on finish" option (see #2988)
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
We forgot to put braces around the DNS_NAME regex, and in
DNS_NAME_OR_IP_REGEX
this is wrong because the regex
^foo|bar$
matches 'foo' at the beginning and 'bar' at the end, so either
foobaz
bazbar
would match. only
^(foo|bar)$
matches only 'foo' and 'bar'
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
* add square brackets to ipv6 adresses in BackupRepository if they not
already have some (we save them without in the remote config)
* in get_pull_parameters, we now create a BackupRepository first and use
those values (which does the [] mapping), this also has the advantage
that we have one place less were we hardcode 8007 as port
* in the ui, add square brackets for ipv6 adresses for remotes
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
when upgrading from a version where we stored all tasks in the 'active' file,
we did not completly account for finished tasks still there
we should update the file when encountering any finished task in
'active' as well as filter them out on the api call (if they get through)
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
this adds the ability to add port numbers in the backup repo spec
as well as remotes, so that user that are behind a
NAT/Firewall/Reverse proxy can still use it
also adds some explanation and examples to the docs to make it clearer
for h2 client i left the localhost:8007 part, since it is not
configurable where we bind to
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
When creating a new zpool for a datastore, also instantiate an
import-unit for it. This helps in cases where '/etc/zfs/zool.cache'
get corrupted and thus the pool is not imported upon boot.
This patch needs the corresponding addition of 'zfs-import@.service' in
the zfsonlinux repository.
Suggested-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
we need this, because we append the port to this to get a target url
e.g. we print
format!("https://{}:8007/", address)
if address is now an ipv6 (e.g. fe80::1) it would become
https://fe80::1:8007/ which is a valid ipv6 on its own
by using square brackets we get:
https://[fe80::1]:8007/ which now connects to the correct ip/port
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
since len() and MAX_INDEX_TASKS are both usize, they underflow
instead of getting negative values
instead check the sizes and set them accordingly
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
this starts a task once a day at "00:00" that rotates the task log
archive if it is bigger than 500k
if we want, we can make the schedule/size limit/etc. configurable,
but for now it's ok to set fixed values for that
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
since there are no users of this anymore and we now have a nicer
TaskListInfoIterator to use, we can drop this function
this also means that 'update_active_workers' does not need to return
a list anymore since we never used that result besides in
read_task_list
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
this means that limiting with epoch now works correctly
also change the api type to i64, since that is what the starttime is
saved as
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
this makes the filtering/limiting much nicer and readable
since we now have potentially an 'infinite' amount of tasks we iterate over,
and cannot now beforehand how many there are, we return the total count
as always 1 higher then requested iff we are not at the end (this is
the case when the amount of entries is smaller than the requested limit)
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
this is an iterator that reads/parses/updates the task list as
necessary and returns the tasks in descending order (newest first)
it does this by using our logrotate iterator and using a vecdeque
we can use this to iterate over all tasks, even if they are in the
archive and even if the archive is logrotated but only read
as much as we need
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
instead of removing tasks beyond the 1000 that are in the index
write them into an archive file by appending them at the end
this way we can later still read them
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
one for only the active tasks and one for up to 1000 finished tasks
factor out the parsing of a task file (we will later need this again)
and use iterator combinators for easier code
we now sort the tasks ascending (this will become important in a later patch)
but reverse (for now) it to keep compatibility
this code also omits the converting into an intermittent hash
since it cannot really happen that we have duplicate tasks in this list
(since the call is locked by an flock, and it is the only place where we
write into the lists)
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
this is a helper to rotate and iterate over log files
there is an iterator for open filehandles as well as
only the filename
also it has the possibilty to rotate them
for compression, zstd is used
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
also changes:
* correct comment about reset (replace 'sync' with 'action')
* check schedule change correctly (only when it is actually changed)
with this changes, we can drop the 'lookup_last_worker' method
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
we rely on the jobstate handling to write the error of the worker
into its state file, but we used '?' here in a block which does not
return the error to the block, but to the function/closure instead
so if a prune job failed because of such an '?', we did not write
into the statefile and got a wrong state there
instead use our try_block! macro that wraps the code in a closure
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
like the sync jobs, so that if an admin configures a schedule it
really starts the next time that time is reached not immediately
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
listing, updating or deleting a user is now possible for the user
itself, in addition to higher-privileged users that have appropriate
privileges on '/access/users'.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
