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>
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>
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>
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>
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>
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>
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).
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 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>
- remove chrono dependency
- depend on proxmox 0.3.8
- remove epoch_now, epoch_now_u64 and epoch_now_f64
- remove tm_editor (moved to proxmox crate)
- use new helpers from proxmox 0.3.8
* epoch_i64 and epoch_f64
* parse_rfc3339
* epoch_to_rfc3339_utc
* strftime_local
- BackupDir changes:
* store epoch and rfc3339 string instead of DateTime
* backup_time_to_string now return a Result
* remove unnecessary TryFrom<(BackupGroup, i64)> for BackupDir
- DynamicIndexHeader: change ctime to i64
- FixedIndexHeader: change ctime to i64
by either printing the original, out-of-range timestamp as-is, or
bailing with a proper error message instead of panicking.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
this implements parsing and calculating calendarevents that have a
basic date component (year-mon-day) with the usual syntax options
(*, ranges, lists)
and some special events:
monthly
yearly/annually (like systemd)
quarterly
semiannually,semi-annually (like systemd)
includes some regression tests
the ~ syntax for days (the last x days of the month) is not yet
implemented
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
instead of using 'as' and silently converting wrong,
use the TryInto trait and raise an error if we cannot convert
this should only happen if we have a negative year,
but this is expected (we do not want schedules from before the year 0)
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
add_* are modeled after add_days
subtract one for set_mon to have a consistent interface for all fields
(i.e. getter/setter return/expect the 'real' number, not the ones
in the tm struct)
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
the tm struct contains the year - 1900 but we added that
if we want to use the libc normalization correctly, the tm struct
must have the correct year in it, else the computations for timezones,
etc. fail
instead add a getter that adds the years and a setter that subtracts it again
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
if we give multiple options/ranges for a value, e.g.
2,4,8
we always choose the biggest, instead of the smallest that is next
this happens because in DateTimeValue::find_next(value)
'next' can be set multiple times and we set it when the new
value was *bigger* than the last found 'next' value, when in reality
we have to choose the *smallest* next we can find
reverse the comparison operator to fix this
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
we never passed 'false' to it anyway so remove it
(we can add it again if we should ever need it)
also remove the adding of wday (gets normalized anyway)
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
we want to use dates for the calendarspec, and with that there are some
impossible combinations that cannot be detected during parsing
(e.g. some datetimes do not exist in some timezones, and the timezone
can change after setting the schedule)
so finding no timestamp is not an error anymore but a valid result
we omit logging in that case (since it is not an error anymore)
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
