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>
mktime/gmtime can normalize time and even can handle special timezone
cases like the fact that the time 2:30 on specific day/timezone combos
do not exists
we have to convert the signature of all functions that use
normalize_time since mktime/gmtime can return an EOVERFLOW
but if this happens there is no way we can find a good time anyway
since normalize_time will always set wday according to the rest of the
time, remove set_wday
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
while it was correct, there was no measurable speed gain
(a benchmark yielded 2.8 ms for a spec that did not find a timestamp either way)
so remove it for simpler code
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
modeled after pves/pmgs vncticket (i substituted the vnc with term)
by putting the path and username as secret data in the ticket
when sending the ticket to /access/ticket it only verifies it,
checks the privs on the path and does not generate a new ticket
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
While we do not yet support the date specs for CalendarEvent the left
out "weekly" special expression[0] dies not requires that support.
It is specified to be equivalent with `Mon *-*-* 00:00:00` [0] and
this can be implemented with the weekday and time support we already
have.
[0]: https://www.freedesktop.org/software/systemd/man/systemd.time.html#Calendar%20Events
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Make it actually do the correct cast by using `libc::c_char`.
Fixes issues when building on other platforms, e.g., the aarch64
client only build on Arch Linux ARM I tested in my free time.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
zfs does not have to be installed, so simply log an error and
continue, users still get an error when clicking directly on
ZFS
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
not exhaustive of what zfs allows (space is missing), but this
can be done easily without problems
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
those names are allowed for zpools
these will fail for now, but it will be fixed in the next commit
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
We get the path to our executable via a readlink() on
"/proc/self/exe", which appends a " (deleted)" during
package reloads.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
provides some basic statistics functions (sum, mean, etc.)
and a function to return the parameters of the linear regression of
two variables
implemented using num_traits to be more flexible for the types
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
disk_usage returned the same values as defined in StorageStatus,
so simply use that
with that we can replace the logic of the datastore status with that
function and also use it for root disk usage of the nodes
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
two things were wrong here:
* the range (x..y) does not include y, so the range
(day_num+1..6) goes from (day_num+1) to 5 (but sunday is 6)
* WeekDays.bits() does not return the 'day_num' of that day, but
the bit value (e.g. 64 for SUNDAY) but was treated as the index of
the day of the week
to fix this, we drop the map to WeekDays and use the 'indices'
directly
this patch makes the test work again
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Make `flistxattr()` return a `ListXAttr` helper which
provides an iterator over `&CStr`.
This exposes the property that xattr names are a
zero-terminated string without simply being an opaque
"byte vector". Using &[u8] as a type here is too lax.
Also let `fgetxattr` take a `CStr`. While this may be a
burden on the caller, we usually already have
zero-terminated strings on the call site. Currently we only
use this method coming from `flistxattr` after all.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
entry() allows to lookup the position where and entry belongs and update/insert
it in the HashMap more efficiently than get_mut() and insert().
Details: https://gankra.github.io/blah/hashbrown-insert/
In addition, use the struct LinkedList and remove the outdated code.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
- do not "double"-block_in_place() (it may not be nested)
- do not call block_in_place() in non-worker threads
is_in_tokio() isn't sufficient, we need to actually know
that we're in a worker-thread, so we do this by remembering
that we're blocking.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
tokio now has Handle::try_current() allowing us to
generally check for a tokio runtime even if spawned by
someone else
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
This helpers are used to construct the extended attributes values from
the ACLs stored in the pxar archive.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
They are not only needed by the pxar::sequential_decoder but also for the fuse
xattr impl, so it makes more sense to have them there.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
This will return a mutable reference just like get_mut, but on a cache miss
it will get and insert the missing value via the fetch method provided via the
Cacher trait.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Implements a cache with least recently used cache replacement policy.
Internally the state is tracked by a HashMap (for fast access) and a doubly
linked list (for the access order).
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
The -sys, -tools and -api crate have now been merged into
the proxmx crate directly. Only macro crates are separate
(but still reexported by the proxmox crate in their
designated locations).
When we need to depend on "parts" of the crate later on
we'll just have to use features.
The reason is mostly that these modules had
inter-dependencies which really make them not independent
enough to be their own crates.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
add a helper to perform some basic checks on password prompts.
- verification (asks for a 2nd time)
- check length
also use the new helper where password input in tty is taken to reduce
duplicate code.
this helper should be used when creating keys, changing passphrases etc.
note: this helper can be extended later on to provide better checks for
password strength.
Signed-off-by: Oguz Bektas <o.bektas@proxmox.com>
futures-0.3 has a futures::future::abortable() function
which does the exact same, returns an Abortable future with
an AbortHandle providing an abort() method.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Stefan Reiter
Dietmar Maurer
Dominik Csapak
Wolfgang Bumiller
Fabian Grünbichler
Thomas Lamprecht
Hannes Laimer
Christian Ebner
Oguz Bektas