For the actual partitions and blockdevices in a backup, which the
user sees like folders in the file-restore ui
Encoded as "None", to avoid cluttering DirEntryAttribute, where it
wouldn't make any sense to have.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
These can't be entered or restored anyway, and cause issues with catalog
files for example.
Also a clippy fix.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
in some configurations, samba stores NTFS-ACLs in this xattr[0], so
we should backup (if we can)
altough the 'security' namespace is special (e.g. in use by
selinux, etc.) this value is normally only used by samba and we
should be able to back it up.
to restore it, the user needs at least 'CAP_SYS_ADMIN' rights, otherwise
it cannot be set
0: https://www.samba.org/samba/docs/current/man-html/vfs_acl_xattr.8.html
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Some changer seem to append more data than we expect, but correctly
annotates that size in the subheader.
For each descriptor entry, read as much as the size given in the
subheader (or until the end of the reader), else our position in
the reader is wrong for the next entry, and we will parse
incorrect data.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
only check every 1024'th, which is cheaper to do than a modulo, as we
can just mask the 10 least-significant-bits and check if the result
is zero.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Fixes a non-negligible performance regression from commit
7f394c807b
While we skip known-verified chunks in the stat-and-inode-sort loop,
those are only the ones from previous indexes. If there's a repeated
chunk in one index they would get re-verified more often as required.
So, add the check again explicitly to the read+verify loop.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
before reading the chunks from disk in the order of the index file,
stat them first and sort them by inode number.
this can have a very positive impact on read speed on spinning disks,
even with the additional stat'ing of the chunks.
memory footprint should be tolerable, for 1_000_000 chunks
we need about ~16MiB of memory (Vec of 64bit position + 64bit inode)
(assuming 4MiB Chunks, such an index would reference 4TiB of data)
two small benchmarks (single spinner, ext4) here showed an improvement from
~430 seconds to ~330 seconds for a 32GiB fixed index
and from
~160 seconds to ~120 seconds for a 10GiB dynamic index
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
when we get an error from the tape, we possibly want to ignore it,
i.e. when the file was incomplete, but we still want to error
out if the error came from e.g, the datastore, so we have to move
the error checking code to the 'next_chunk' call
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Treat filepaths like "/root.pxar.didx" without a trailing slash as
wanting to download the entire archive content instead of erroring. The
zip-creation code already works fine for this scenario.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
in proxmox-backup-proxy, we log and discard any errors on 'accept',
so that we can continue to server requests
in proxmox-backup-api, we just have the StaticIncoming that accepts,
which will forward any errors from the underlying TcpListener
this patch also logs and discards the errors, like in the proxy.
Otherwise it could happen that if the api-daemon has more files open
than the proxy, it will shut itself down because of a
'too many open files' error if there are many open connections
(the service should also restart on exit i think, but this is
a separate issue)
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
if a datastore or root is not used directly on the pool dir
(e.g. the installer creates 2 sub datasets ROOT/pbs-1), info in
/proc/self/mountinfo returns not the pool, but the path to the
dataset, which has no iostats itself in /proc/spl/kstat/zfs/
but only the pool itself
so instead of not gathering data at all, gather the info from the
underlying pool instead. if one has multiple datastores on the same
pool those rrd stats will be the same for all those datastores now
(instead of empty) similar to 'normal' directories
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
The data on the restore daemon is either encoded into a pxar archive, to
provide the most accurate data for local restore, or encoded directly
into a zip file (or written out unprocessed for files), depending on the
'pxar' argument to the 'extract' API call.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Encodes an entire local directory into an AsyncWrite recursively.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
extract_sub_dir_seq, together with seq_files_extractor, allow extracting
files from a pxar Decoder, along with the existing option for an
Accessor. To facilitate code re-use, some helper functions are extracted
in the process.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Allows listing files and directories on a block device snapshot.
Hierarchy displayed is:
/archive.img.fidx/bucket/component/<path>
e.g.
/drive-scsi0.img.fidx/part/2/etc/passwd
(corresponding to /etc/passwd on the second partition of drive-scsi0)
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Includes methods to start, stop and list QEMU file-restore VMs, as well
as CLI commands do the latter two (start is implicit).
The implementation is abstracted behind the concept of a
"BlockRestoreDriver", so other methods can be implemented later (e.g.
mapping directly to loop devices on the host, using other hypervisors
then QEMU, etc...).
Starting VMs is currently unused but will be needed for further changes.
The design for the QEMU driver uses a locked 'map' file
(/run/proxmox-backup/$UID/restore-vm-map.json) containing a JSON
encoding of currently running VMs. VMs are addressed by a 'name', which
is a systemd-unit encoded combination of repository and snapshot string,
thus uniquely identifying it.
Note that currently you need to run proxmox-file-restore as root to use
this method of restoring.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Includes functionality for scanning and referring to partitions on
attached disks (i.e. snapshot images).
Fairly modular structure, so adding ZFS/LVM/etc... support in the future
should be easy.
The path is encoded as "/disk/bucket/component/path/to/file", e.g.
"/drive-scsi0/part/0/etc/passwd". See the comments for further
explanations on the design.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Add a watchdog that will automatically shut down the VM after 10
minutes, if no API call is received.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Implements the base of a small daemon to run within a file-restore VM.
The binary spawns an API server on a virtio-vsock socket, listening for
connections from the host. This happens mostly manually via the standard
Unix socket API, since tokio/hyper do not have support for vsock built
in. Once we have the accept'ed file descriptor, we can create a
UnixStream and use our tower service implementation for that.
The binary is deliberately not installed in the usual $PATH location,
since it shouldn't be executed on the host by a user anyway.
For now, only the API calls 'status' and 'stop' are implemented, to
demonstrate and test proxmox::api functionality.
Authorization is provided via a custom ApiAuth only checking a header
value against a static /ticket file.
Since the REST server implementation uses the log!() macro, we can
redirect its output to stdout by registering env_logger as the logging
target. env_logger is already in our dependency tree via zstd/bindgen.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
This allows switching the base user identification/authentication method
in the rest server. Will initially be used for single file restore VMs,
where authentication is based on a ticket file, not the PBS user
backend (PAM/local).
To avoid putting generic types into the RestServer type for this, we
merge the two calls "extract_auth_data" and "check_auth" into a single
one, which can use whatever type it wants internally.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
For now it only supports 'list' and 'extract' commands for 'pxar.didx'
files. This should be the foundation for a general file-restore
interface that is shared with block-level snapshots.
This is packaged as a seperate .deb file, since for block level restore
it will need to depend on pve-qemu-kvm, which we want to seperate from
proxmox-backup-client.
[original code for proxmox-file-restore.rs]
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
[code cleanups/clippy, use helpers::list_dir_content/ArchiveEntry, no
/block subdir for .fidx files, seperate binary and package]
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
I made some comparision with bombardier[0], the one listed here are
30s looped requests with two concurrent clients:
[ static download of ext-all.js ]:
lvl avg / stdev / max
none 1.98 MiB 100 % 5.17ms / 1.30ms / 32.38ms
fastest 813.14 KiB 42 % 20.53ms / 2.85ms / 58.71ms
default 626.35 KiB 30 % 39.70ms / 3.98ms / 85.47ms
[ deterministic (pre-defined data), but real API call ]:
lvl avg / stdev / max
none 129.09 KiB 100 % 2.70ms / 471.58us / 26.93ms
fastest 42.12 KiB 33 % 3.47ms / 606.46us / 32.42ms
default 34.82 KiB 27 % 4.28ms / 737.99us / 33.75ms
The reduction is quite better with default, but it's also slower, but
only when testing over unconstrained network. For real world
scenarios where compression actually matters, e.g., when using a
spotty train connection, we will be faster again with better
compression.
A GPRS limited connection (Firefox developer console) requires the
following load (until the DOMContentLoaded event triggered) times:
lvl t x faster
none 9m 18.6s x 1.0
fastest 3m 20.0s x 2.8
default 2m 30.0s x 3.7
So for worst case using sligthly more CPU time on the server has a
tremendous effect on the client load time.
Using a more realistical example and limiting for "Good 2G" gives:
none 1m 1.8s x 1.0
fastest 22.6s x 2.7
default 16.6s x 3.7
16s is somewhat OK, >1m just isn't...
So, use default level to ensure we get bearable load times on
clients, and if we want to improve transmission size AND speed then
we could always use a in-memory cache, only a few MiB would be
required for the compressable static files we server.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
by using our DeflateEncoder
for this to work, we have to create wrapper reader that generates the crc32
checksum while reading.
also we need to put the target writer in an Option, so that we can take
it out of self and move it into the DeflateEncoder while writing
compressed
we can drop the internal buffer then, since that is managed by the
deflate encoder now
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
implements a deflate encoder that can compress anything that implements
AsyncRead + Unpin into a file with the helper 'compress'
if the inner type is a Stream, it implements Stream itself, this way
some streaming data can be streamed compressed
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Previously we did not store GROUP_OBJ ACL entries for
directories, this means that these were lost which may
potentially elevate group permissions if they were masked
before via ACLs, so we also show a warning.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Don't override `group_obj` with `None` when handling
`ACL_TYPE_DEFAULT` entries for directories.
Reproducer: /var/log/journal ends up without a `MASK` type
entry making it invalid as it has `USER` and `GROUP`
entries.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Add a new module containing key-related functions and schemata from all
over, code moved is not changed as much as possible.
Requires adapting some 'use' statements across proxmox-backup-client and
putting the XDG helpers quite cozily into proxmox_client_tools/mod.rs
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Pass in an optional auth tag, which will be passed as an Authorization
header on every subsequent call.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
This way we get a better rendering in the api-viewer.
before:
[<string>, ... ]
after:
[(<source>=)?<target>, ... ]
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Stefan Reiter
Dietmar Maurer
Dominik Csapak
Thomas Lamprecht
Wolfgang Bumiller