Commit Graph

17 Commits

Author SHA1 Message Date
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 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 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 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 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 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 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 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