Commit Graph

195 Commits

Author SHA1 Message Date
Dietmar Maurer
62ee2eb405 avoid some clippy warnings 2019-10-26 11:42:05 +02:00
Dietmar Maurer
834a2f95a0 avoid some clippy warnings 2019-10-25 18:44:51 +02:00
Dietmar Maurer
f58f426e86 src/pxar/binary_search_tree.rs: allow(clippy::many_single_char_names) 2019-10-25 18:22:19 +02:00
Christian Ebner
8abd12f1f3 pxar: decoder: cleanup un-needed Decoder::get_dir()
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-10-23 08:02:23 +02:00
Christian Ebner
9c25c0330a pxar: fuse: optimize fuse readdir callback
The expensive call to Decoder::read_directory_entry() can be omitted as
Decoder::attributes() returns all the information the fuse response needs.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-10-23 08:02:03 +02:00
Dietmar Maurer
ffe171c5db src/pxar/encoder.rs: avoid duplicate check for MAX_DIRECTORY_ENTRIES
Simply by reordering code.
2019-10-23 07:55:56 +02:00
Christian Ebner
62d123e50a pxar: add functionality to pass exclude MatchPatterns on create
This exposes the option to pass a list of exclude MatchPattern via the
'--exclude' option.
The list is encoded as file '.pxarexclude-cli' in the archives root directory.
If such a file is present in the filesystem, it is skipped and not included in
the archive in order to avoid conflicting information.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-10-23 07:31:49 +02:00
Christian Ebner
ba8165c607 pxar: encoder: add encode_pxar_exclude_cli() function.
This provides the functionality needed to encode MatchPatterns passed on the cli
in the root directory.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-10-23 07:30:30 +02:00
Dietmar Maurer
920243b12d pxar: simplify MatchPattern::to_bytes 2019-10-23 07:29:02 +02:00
Christian Ebner
e50a90e010 pxar: Implement to_bytes() for MatchPattern in order to write them to file.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-10-23 07:21:11 +02:00
Christian Ebner
40c9ff9d81 src/pxar/encoder.rs: include .pxarexclude files into the catalog
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-10-17 10:25:20 +02:00
Christian Ebner
20feec9fac pxar: fuse: include nsec information in stat
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-10-17 10:24:13 +02:00
Christian Ebner
d388e244f5 src/pxar/fuse.rs: make verbose flag independent from deamonize by adding this as new flag
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-20 08:00:04 +02:00
Christian Ebner
e717e9a3bf src/pxar/fuse.rs: refactor Session::new()
and add Session::from_decoder() in order to be able to create a fuse session
with a `Decoder` given as argument.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-20 07:59:51 +02:00
Christian Ebner
946b72a6b2 src/pxar/fuse.rs: introduce Context in order to add caching.
This patch introduces `Context` to hold the decoder, ino_offset and caches for
the attributes and the goodbye table.
By caching, certain callbacks can be handled without the need to read additional
data via the decoder, which improves performance.
The searching of the goodbye table is refactored as well, avoiding recursive
function calls in case of a hash collision.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-20 07:56:40 +02:00
Christian Ebner
1c93182371 src/pxar/decoder.rs: fix bug in decoder read
`offset` points to the `PXAR_FILENAME`, therefore read the filename before
the `PXAR_ENTRY`.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-20 07:54:16 +02:00
Christian Ebner
0e20b336e1 pxar: fuse: avoid possible hash collision in lookup by additional checking against filename
The hash of the filename in the goodbye table items allows to quickly compare to
a hashed filename.
Unfortunately, a matching hash is no garantee for matching filenames as hash
collisions are possible.
This patch fixes such possible collisions by further checking the filenames once
a matching hash has been found.
This introduces no significant extra cost (except for the filename comparison)
for cases with matching hashes, as the lookup call has to seek and read the file
attributes (including the filename) anyway.
In cases with hash collision, the next matching item is read and treaded
analogously (what means we need at least one extra seek).
As collisions should be not that frequent, this should be an acceptable penalty.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-16 10:22:22 +02:00
Wolfgang Bumiller
653b1ca10e some clippy fixups
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
2019-09-11 12:14:05 +02:00
Christian Ebner
03310bea12 src/pxar/fuse.rs: s/Buf/ReplyBuf/ and s/BufState/ReplyBufState/
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-11 11:27:18 +02:00
Christian Ebner
48cc1b8234 src/pxar/fuse.rs: refactor stat and fix i-node mapping
The functionality of stat is split into smaller sub-functions, which allows
to reuse them more flexible, as the code flow is similar but not always the same.
By this, the ugly and incorrect re-setting of the i-node in the lookup callback
function is avoided.
The correct i-node is now calculated beforehand and stat simply creates a
`libc::stat` struct from the provided parameters.
Also, this fixes incorrect i-node assignments in the readdir callback function.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-11 11:26:55 +02:00
Christian Ebner
22eaa905a4 src/pxar/fuse.rs: impl readdir callback for fuse
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-10 11:38:58 +02:00
Christian Ebner
1652192f4d src/pxar/fuse.rs: impl readlink callback for fuse
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-10 11:38:48 +02:00
Christian Ebner
3710b23db5 src/pxar/decoder.rs: read_link has to read filename before entry.
The offset points to the start of the item, which is the filename

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-10 11:36:04 +02:00
Christian Ebner
7eb9848ba7 src/pxar/fuse.rs: impl opendir callback for fuse
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-10 11:35:13 +02:00
Christian Ebner
2c5fd378d3 src/pxar/fuse.rs: impl read callback for fuse
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-10 11:34:55 +02:00
Christian Ebner
97e4db9dd5 src/pxar/fuse.rs: impl open callback for fuse
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-10 11:34:18 +02:00
Christian Ebner
b00689254a src/pxar/fuse.rs: impl lookup callback for fuse
The lookup call checks if the given filename is found in the directory referenced
by the i-node by calclulating the filenames hash and looking it up in the
directories goodbye table.
If found, the entries parameters are returned.
In order to be able to lookup the parent offset by a given file offset in the
readdir callback, this also stores the corresponding values in a HashMap.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-10 10:54:23 +02:00
Christian Ebner
1443927c02 src/pxar/decoder.rs: correctly handle hardlinks in Decoders attribute function
If the attributes are then returned by seeking to the new offset.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-10 10:46:39 +02:00
Christian Ebner
d00097a0e6 src/pxar/decoder.rs: split functionality of list_dir into list_dir and goodbye_table
In order to read the contents of the goodbye table while keeping the
functionality of list_dir in place as is.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-10 10:46:29 +02:00
Christian Ebner
ac12570e99 src/pxar/decoder.rs: make read_directory_entry usable by fuse
... and thereby allow it to read a single directory entry based on the
start and end archive offsets.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-10 10:32:48 +02:00
Christian Ebner
3f7f4f34be src/pxar/decoder.rs: remove DirectoryEntry start_offset and end_offset functions
... as they are not needed with the latest iteration of the fuse callback
function impl (which never made it into the repos).

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-10 10:30:45 +02:00
Christian Ebner
ac30bc3326 src/pxar/decoder.rs: correctly read, check and skip filename
The previous implementation simply skipped over `size` bytes, which is not
correct as size includes also the header.
By relying on `SequentailDecoder`s read_filename function, this is correctly
taken care of plus some more integrity checks.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-10 10:30:21 +02:00
Christian Ebner
d21ae955a6 src/pxar/fuse.rs: impl getattr callback for fuse
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-06 12:24:14 +02:00
Christian Ebner
ec04ea81f2 src/pxar/fuse.rs: Refactor run_in_context and remove inode_to_offset and offset_to_inode
as their functionality is used only once so it makes more sense to keep them
inline.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-06 12:22:53 +02:00
Christian Ebner
8413083fc5 src/pxar/fuse.rs: Improve comments, add rustfmt skip tag and reafctor
Also, removes an unused println statement in the decoder callback function and
fixes a typo.
Further, use ABI compatible Option<&T> for FFI to avoid use of raw pointers.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-06 12:22:17 +02:00
Christian Ebner
bbd055bf45 src/pxar/decoder.rs: impl functionality needed for fuse implementation
Implements functions attributes, open, read, read_link and get_dir
to be used by the fuse implementation which uses file offsets within the archive
as inodes to reference the archives items.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-06 07:18:14 +02:00
Christian Ebner
132cb0d0db src/pxar/decoder.rs: Add comment for unsolved issue and refactor if statement.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-06 07:16:31 +02:00
Christian Ebner
70b03a07c8 src/pxar/sequential_decoder.rs: make functions needed in non-sequential decoder accessible from within crate
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-04 06:15:05 +02:00
Christian Ebner
f92e8266ae src/pxar/format_definitions.rs: move header type in PxarHeader and hash in PxarGoodbyeItem to top of struct
By this it is possible to read and check just the first u64 of the corresponding
structs in order to identify the items.
This is needed for the fuse implementation in order to get entries based on the
archive offset, used as inode.
Directories are referenced by the offset to the goodbye tail while other items
are referenced by the offset of the filename followed by the entry.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-04 06:14:30 +02:00
Christian Ebner
75933d1e83 src/pxar/fuse.rs: add function to map offset to inode and vice versa
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-04 06:13:59 +02:00
Christian Ebner
c7fee396c6 src/pxar/decoder.rs: add getter functions to obtain start/end offsets for directories
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-04 06:10:56 +02:00
Christian Ebner
3626ac611f src/pxar/decoder.rs: rustfmt fixups
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-09-04 06:09:17 +02:00
Christian Ebner
bcb664cb69 pxar/fuse: add pxar cli flag to set single- or multi-threaded session loop
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
2019-08-23 09:43:14 +02:00
Christian Ebner
de2791868a src/pxar/sequentail_decoder.rs: followup: cleanup S_IFMT masking
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
2019-08-23 09:42:22 +02:00
Christian Ebner
9cb9e1b7db src/pxar/sequential_decoder.rs: style fixups
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
2019-08-23 09:42:19 +02:00
Christian Ebner
dac88033ba src/pxar/dir_stack.rs: style fixups
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
2019-08-23 09:39:14 +02:00
Christian Ebner
b69169e7be src/pxar/fuse.rs: style fixups
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
2019-08-23 09:37:58 +02:00
Christian Ebner
d792dc3cd2 src/pxar/match_pattern.rs: style fixups
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
2019-08-23 09:37:56 +02:00
Christian Ebner
4ea22b68d9 src/pxar/format_definition.rs: style fixup
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
2019-08-23 09:37:53 +02:00
Christian Ebner
35dfd3ceb7 src/pxar/encoder.rs: style fixups by rustfmt
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
2019-08-22 13:29:11 +02:00
Christian Ebner
1af30bc2fe (pxar: replace deprecated std::mem::uninitialized()
... and use std::mem::MaybeUninit or proxmox::tools::vec::uninitialized() instead.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
2019-08-22 13:27:25 +02:00
Christian Ebner
e5471b4836 pxar/decoder: avoid failing on hardlinks and return corresponding target file entry
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
[Fixup: remove unnecessary 'mut']
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
2019-08-21 09:32:52 +02:00
Christian Ebner
58262f40f7 src/pxar/decoder.rs: get correct stats for root directory
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
2019-08-21 09:31:41 +02:00
Christian Ebner
7d26720e79 src/pxar/decoder.rs: move GOODBYE_ITEM_SIZE from function to module scope.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
2019-08-21 09:31:39 +02:00
Dietmar Maurer
9d135fe617 src/backup/catalog_blob.rs: moved catalog impl. from pxar
And avoid loading catalog into memory.
2019-08-16 12:27:17 +02:00
Christian Ebner
ac0b435344 src/pxar/fuse.rs: fix compiler warnings
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-14 15:14:57 +02:00
Christian Ebner
41d08aa6de src/pxar/fuse.rs: enable libfuse debug output in verbose mode
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-14 08:59:15 +02:00
Christian Ebner
742e64ea0b src/pxar/fuse.rs: cleanup callback interface and store decoder within session context
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-14 08:58:44 +02:00
Christian Ebner
7750b7f2b7 pxar: decoder: take ownership of underlying reader
By taking ownership it is easier to move the decoder into another struct,
e.g. into a session context in fuse.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-14 08:55:08 +02:00
Christian Ebner
f50b4fd6a0 src/pxar/decoder.rs: cleanup s/CaDirectoryEntry/DirectoryEntry
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-14 08:54:08 +02:00
Christian Ebner
c50f87442c pxar: add basic code for FUSE implementation.
This adds the basic code in order to create a fuse session and mount an archive.
It adds libfuse3-3 as runtime dependency and libfuse3-dev as build dependency.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-09 16:42:31 +02:00
Dietmar Maurer
9049a8cfe6 src/bin/proxmox-backup-client.rs: implement catalog command 2019-08-09 11:36:33 +02:00
Dietmar Maurer
2761d6a4f3 src/pxar/encoder.rs: use BackupCatalogWriter 2019-08-09 09:46:49 +02:00
Dietmar Maurer
aea0815d32 src/pxar/catalog.rs: new catalog helper 2019-08-09 09:41:43 +02:00
Christian Ebner
eecb182845 pxar: add initial docs for MatchPattern
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-06 09:03:02 +02:00
Christian Ebner
43e892d293 pxar: add error handling for MatchPattern::matches_filename()
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-06 09:02:44 +02:00
Dietmar Maurer
b86f263ced use new proxmox::sys::linux::magic 2019-08-03 09:28:57 +02:00
Christian Ebner
4ea0f7d95b pxar: remove flag to change digest algorithm
The flag CA_FORMAT_SHA512_256 is used to switch between sha512 and sha256 to
calculate digest in casync.

As we use sha256, we can get rid of this flag for now.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-03 08:57:53 +02:00
Christian Ebner
4d142ea79e pxar: cleanup: refactor and rename exclude pattern
The original name PxarExcludePattern makes no sense anymore as the patterns are
also used to match filenames during restore of the archive.

Therefore, exclude_pattern.rs is moved to match_pattern.rs and PxarExcludePattern
rename to MatchPattern.
Further, since it makes more sense the MatchTypes are now declared as None,
Positive, Negative, PartialPositive or PartialNegative, as this makes more sense
and seems more readable.
Positive matches are those without '!' prefix, Negatives with '!' prefix.

This makes also the filename matching in the encoder/decoder more intuitive and
the logic was adapted accordingly.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-03 08:52:32 +02:00
Christian Ebner
fe076c8259 pxar: cleanup: s/PxarDirBuf/PxarDirStack/g and move dir_buffer.rs to dir_stack.rs
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-03 08:52:10 +02:00
Christian Ebner
ead7546a96 pxar: change uid and gid to u32 instead of u64
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-03 08:51:51 +02:00
Christian Ebner
5e50c606b0 pxar: cleanup: s/CA_FORMAT/PXAR/g and s/CaFormat/Pxar/g
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-03 08:51:33 +02:00
Christian Ebner
47651f9530 pxar: cleanup: move feature flags to src/pxar/flags.rs and omit CA_FORMAT prefix on all of them
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-03 08:51:06 +02:00
Christian Ebner
91451c4355 pxar: cleanup: move filesystem related magic numbers to tools/fs/magic.rs
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-03 08:48:12 +02:00
Christian Ebner
81a9905e0a pxar: implement feature flag support for device nodes, fifos and sockets
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-02 07:55:17 +02:00
Christian Ebner
8abc95a145 pxar: remove some unused feature flags from format definition
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-02 07:54:46 +02:00
Christian Ebner
3a905cac2b src/pxar/sequential_decoder.rs: remove of obsolete function dir_mkdirat
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-02 07:52:49 +02:00
Christian Ebner
beffac999f src/pxar/sequentail_decoder.rs: fix issue when restoring with glob pattern.
Partial extraction of an archive with a glob pattern, e.g. '**/*.conf' lead to
the unexpected behaviour of restoring all partially matched directories (in this
example all of them).

This patch fixes this unexpected behaviour by only restoring those directories
were the directory or one of its sub-items fully matched the pattern and should
therefore be restored.

To achive this behavoiur, directory metadata is pushed onto a stack and restored
on demand.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-02 07:49:47 +02:00
Christian Ebner
51ac99c314 src/pxar/exclude_pattern.rs: add Clone and Copy trait to MatchType
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-02 07:49:47 +02:00
Christian Ebner
6a584cfd76 pxar: add PxarDir and PxarDirBuf to buffer directory metadata
In order to restore only directories when some of their content fully matched
a match pattern on partial restores, these directories and their metadata are
pushed onto this buffer and only restored successivley on demand.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-02 07:45:12 +02:00
Dietmar Maurer
27e6e180b6 src/pxar/format_definition.rs - PxarAttributes: derive Default
And remove unnecessary impl new().
2019-08-02 07:16:10 +02:00
Christian Ebner
a92e6c9011 src/pxar/sequential_decoder.rs: split read and restore of attributes into separate functions
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-02 07:11:38 +02:00
Christian Ebner
e60cfbcdd0 src/pxar/format_definition.rs: add struct PxarAttributes
This structure contains all the attributes allowing to easily store those within
a e.g. dir buffer.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-02 07:10:22 +02:00
Christian Ebner
2be3eff5c3 pxar: avoid taking ownership of xattrs, fcaps and quota_projid on corresponding restore functions.
By borrowing these objects we preserve the functionality but make sure
that ownership doesn't change, avoiding problems when contained within other
structs such as e.g. a buffer storing these attributes.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-08-02 06:44:00 +02:00
Christian Ebner
9731c8b862 pxar: add support for storing/restoring the quota project id on ZFS
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-07-30 09:40:48 +02:00
Christian Ebner
6a87910949 pxar: implement allow_existing_dirs for pxar decoder
By default, restoring an archive will fail if files with the same filename
already exist in the target directory.

By setting the allow_existing_dirs flag, the restore will not fail if an
existing directory is encountered.
The metadata (permissions, acls, ...) of the existing directory will be set
to the ones from the archive.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-07-30 09:40:30 +02:00
Dietmar Maurer
5b72c9b4f7 src/pxar/encoder.rs: add new skip_lost_and_found parameter 2019-07-24 12:21:25 +02:00
Dietmar Maurer
2eeaacb974 src/pxar/encoder.rs: allow to pass list of devices
For better mount point include control...
2019-07-24 08:11:59 +02:00
Christian Ebner
1fdef50f52 src/pxar/sequential_decoder.rs: Call callback only on restored paths.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-07-19 11:58:51 +02:00
Christian Ebner
fa7e957ca3 pxar: Adapt SequentialDecoder::restore() calls to pass empty match pattern for full restore
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-07-17 12:19:31 +02:00
Christian Ebner
d32c2e4d27 src/pxar/sequential_decoder.rs: adapt code for partial restore by match pattern
Allows to partially restore an archive by passing match patterns to the restore
function.
The whole restore is performed in sequential, therefore the whole archive has to
be read.
By wrapping the RawFd into an Option it can be controlled if the corresponding
part is restored (in case of Some(fd)) or if the Reader reads over it
without restore (in case of None).

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-07-17 12:11:37 +02:00
Christian Ebner
4902291673 src/pxar/sequential_decoder.rs: implement match_filename to match include pattern for partial restores
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-07-17 12:07:54 +02:00
Christian Ebner
894cd49ac4 src/pxar/sequential_decoder.rs: Also check for nul bytes when reading the filename
Check if the filename does not contain invalid nul byes when reading it from the
archive.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-07-17 12:04:41 +02:00
Christian Ebner
0b39674895 src/pxar/sequential_decoder.rs: remove old comments and refactoring
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-07-17 09:46:02 +02:00
Christian Ebner
9f8fcdd050 src/pxar/encoder.rs: refactoring of match_exclude_pattern()
match_exclude_pattern() does not need a '&mut self' reference to the encoder,
move it therefore out of the impl.
Further, this patch contains some naming and formatting cosmetics.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-07-17 09:45:19 +02:00
Christian Ebner
3ff4ef28e6 src/pxar/encoder.rs: remove unneeded dir_count
dir_count was used to track the number of directory entries to store in the
archive and bail if the maximum is exceeded.
As the number of entries is equally obtained from the list of the filenames to
include, use that one instead.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-07-17 09:44:59 +02:00
Christian Ebner
a771f90745 src/pxar/exclude_pattern.rs: do not return partial matches for files
Partial matches make only sense for directories, files are always leafs of the
tree. Take this into account in order to avoid restoring of files which only
matched the front of a match pattern.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-07-17 09:44:06 +02:00
Christian Ebner
3f5192730e src/pxar/format_definition.rs: fix typo
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-07-15 10:49:34 +02:00
Christian Ebner
be9b39e17a src/pxar/sequential_decoder.rs: major refactoring of restore_sequential()
This splits the functionality of restore_sequential() into several smaller
functions in order to allow to reuse them when restoring by seeking based on
the goodbye table offsets.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-07-05 06:45:50 +02:00
Christian Ebner
48a4509c67 src/pxar/encoder.rs: fix bug with incorrect offset stored in goodbye table
Commit cd7dc87903 introduced the special treatment
for .pxarexclude files when stored in the archive.
The incorrect placement of a code snipplet from this path leads to an incorrect
offset and size stored in the goodbye table.
This fix places the start to the correct position, restoring the previously
correct behaviour.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
2019-07-05 06:39:39 +02:00