Commit Graph

12 Commits

Author SHA1 Message Date
Jan Polensky 2403d1e166 zdsfs: Replace bzero with memset
Replace deprecated bzero() with memset() to maintain portability and
comply with the C standard.

No functional change.

Link: https://www.man7.org/linux/man-pages/man3/bzero.3.html
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Jan Polensky <japo@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
2025-12-01 13:45:37 +01:00
Jan Polensky 1956e7abc5 zdsfs: Fix typos
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Jan Polensky <japo@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
2025-12-01 13:45:36 +01:00
Jan Polensky 9d3567d9ce libutil/util_libc.c: Move remove_whitespace() to util_str_rm_whitespace()
Relocate remove_whitespace() from zdsfs to libutil/util_str.c, renaming
it to util_str_rm_whitespace() to make the helper available
project-wide.

Acked-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Jan Polensky <japo@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
2025-10-14 09:39:15 +02:00
Graham Inggs 03ddcd6267 zdsfs: fix compiler warnings
Compiling against fuse3 shows 'incompatible pointer type' warnings due
to the additional function arguments in the new API.

Therefore, adjust the declarations of zdsfs_getattr() and
zdsfs_readdir() to match.

GitHub-ID: https://github.com/ibm-s390-linux/s390-tools/pull/117
Signed-off-by: Graham Inggs <ginggs@debian.org>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
2021-12-09 16:19:25 +01:00
Graham Inggs e679a88d88 Switch from fuse2 to fuse3
Fuse 3.0.0 was released in December 2016. The last maintenance release
from the 2.9 branch was in January 2019, and users are encouraged to
transition to the actively developed 3.x branch.
https://github.com/libfuse/libfuse/releases/tag/fuse-2.9.9

Therefore, adapt cmsfs-fuse, hmcdrvfs, hsavmcore, zdsfs and zdump to
the new API, and adapt associated Makefiles to link the new library.

Closes: https://github.com/ibm-s390-linux/s390-tools/issues/116
GitHub-ID: https://github.com/ibm-s390-linux/s390-tools/pull/117
Link: https://bugs.launchpad.net/ubuntu/+source/s390-tools/+bug/1935666
[hoeppner@linux.ibm.com: Add links to commit message]
Signed-off-by: Graham Inggs <ginggs@debian.org>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
2021-12-09 16:19:25 +01:00
Stefan Haberland 2ece47ee1a zdsfs: fix out of bound access in config file parsing
The tmp buffer is one byte too short missing space for the final \0 byte
leading to out of bound access.
Fix by increasing the buffer by one.

Reported-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
2021-05-21 12:24:27 +02:00
Stefan Haberland 7244785279 zdsfs: transparent codepage conversion
Add transparent codepage conversion feature to zdsfs.
Add options to specify that codepage conversion should be done using
default codepages from 'CP1047' to 'UTF-8' or using user defined codepage
tables.
Also add a new config file allowing the user to specify codepage conversion
options on a per dataset basis.

When a dataset is opened and codepage conversion settings match this
dataset an iconv handle is created and the conversion itself is performed
by the lzds_dshandle_read() function.

Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
2021-05-21 12:23:57 +02:00
Stefan Haberland 5737a57920 zdsfs: coordinated read access
For data consistency it is essential that datasets are not modified by
z/OS applications during zdsfs access. This is currently ensured by
manually setting the device offline in z/OS before mounting it in Linux.

This patch improves the usability and data security by making this manual
step obsolete.
Before opening a dataset zdsfs will obtain an ENQ to mark it as in use for
z/OS and release the ENQ when closing the dataset.
A timer is set up that pings the z/OSMF REST services with the ENQ to
prevent it from a timeout after 10 minutes.
The behavior of zdsfs can be configured in a new config file or with new
command line options.

Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
2020-08-20 17:05:39 +02:00
Stefan Haberland bc053a975a zdsfs: add online vtoc refresh
Enable zdsfs to access datasets that were created after zdsfs was
mounted without the need to remount zdsfs.
This is done by re-reading the VTOC with every readdir system call.
To ensure a consistent VTOC state the DASD device is reserved for
every VTOC read and released afterwards.

Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
2019-01-30 13:35:43 +01:00
Jan Höppner f0d18ddf2b zdsfs: Use util_strlcpy() to copy strings
By using util_strlcpy() and correctly copying strings we can get rid of
the following GCC8 compile warnings:

In function ‘path_to_ds_name.constprop’,
    inlined from ‘zdsfs_readdir’ at zdsfs.c:282:2:
zdsfs.c:78:2: warning: ‘strncpy’ specified bound 45 equals destination
size [-Wstringop-truncation]
  strncpy(normds, path, size);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘path_to_ds_name.constprop’,
    inlined from ‘zdsfs_open’ at zdsfs.c:339:2:
zdsfs.c:78:2: warning: ‘strncpy’ specified bound 45 equals destination
size [-Wstringop-truncation]
  strncpy(normds, path, size);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘path_to_member_name.constprop’,
    inlined from ‘zdsfs_open’ at zdsfs.c:372:3:
zdsfs.c:94:3: warning: ‘strncpy’ specified bound 45 equals destination
size [-Wstringop-truncation]
   strncpy(normds, path, size);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘path_to_ds_name.constprop’,
    inlined from ‘zdsfs_getxattr’ at zdsfs.c:527:2:
zdsfs.c:78:2: warning: ‘strncpy’ specified bound 45 equals destination
size [-Wstringop-truncation]
  strncpy(normds, path, size);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘path_to_member_name.constprop’,
    inlined from ‘zdsfs_getxattr’ at zdsfs.c:547:4:
zdsfs.c:94:3: warning: ‘strncpy’ specified bound 45 equals destination
size [-Wstringop-truncation]
   strncpy(normds, path, size);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘path_to_ds_name.constprop’,
    inlined from ‘zdsfs_getattr.part.1’ at zdsfs.c:134:2,
    inlined from ‘zdsfs_getattr’:
zdsfs.c:78:2: warning: ‘strncpy’ specified bound 45 equals destination
size [-Wstringop-truncation]
  strncpy(normds, path, size);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘path_to_member_name.constprop’,
    inlined from ‘zdsfs_getattr.part.1’ at zdsfs.c:164:3,
    inlined from ‘zdsfs_getattr’:
zdsfs.c:94:3: warning: ‘strncpy’ specified bound 45 equals destination
size [-Wstringop-truncation]
   strncpy(normds, path, size);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
2018-11-16 15:19:48 +01:00
Peter Oberparleiter eade995185 zdsfs: Direct --help and --version output to stdout
zdsfs writes output for --help and --version to stderr. This is
likely because zdsfs calls into a FUSE function for additional
usage output that also writes to stderr (prior to FUSE 3.0.0).

To be consistent with other s390-tools and GNU coding guide lines,
fix this by using stdout for zdsfs generated output, and by
redirecting stderr to stdout before calling the FUSE function.

Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
2018-09-17 14:23:47 +02:00
Michael Holzheu b627b8d8e1 Initial s390-tools-2.0.0 import
This commit is based on the s390-tools-1.39.0 version.

Changes on top of s390-tools-1.39.0:

 - Add MIT license to all source files
 - Add LICENSE file
 - Transform REAMDE to README.md (markdown)
 - Add AUTHORS.md file
 - Add CONTRIBUTING.md file
 - Move changelog from README to CHANGELOG.md file

Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
2017-08-21 10:55:40 +02:00