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| author | Corinna Vinschen <corinna@vinschen.de> | 2021-11-04 21:48:45 +0100 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2021-11-04 21:52:35 +0100 |
| commit | 55dd0676ce50391ed0ee29c630925dd5a0c7123c (patch) | |
| tree | 0e37dfa2968caf407f6a9b8437df734404d5d5b1 | |
| parent | e37bfc8ba1b619fc666715cae9aaf5cbe35b14d0 (diff) | |
| download | newlib-55dd0676ce50391ed0ee29c630925dd5a0c7123c.zip newlib-55dd0676ce50391ed0ee29c630925dd5a0c7123c.tar.gz newlib-55dd0676ce50391ed0ee29c630925dd5a0c7123c.tar.bz2 | |
Cygwin: fix permission problem when writing DAC info on Samba shares
Cygwin always requests FILE_WRITE_ATTRIBUTES permissions when trying to
change DAC information. This can lead to permission problems when
trying to chmod/chown files on Samba shares. Drop requesting
FILE_WRITE_ATTRIBUTES on Samba shares and go with WRITE_DAC/WRITE_OWNER
only.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
| -rw-r--r-- | winsup/cygwin/fhandler.cc | 6 | ||||
| -rw-r--r-- | winsup/cygwin/release/3.3.2 | 2 |
2 files changed, 6 insertions, 2 deletions
diff --git a/winsup/cygwin/fhandler.cc b/winsup/cygwin/fhandler.cc index 36862c7..2a07e6c 100644 --- a/winsup/cygwin/fhandler.cc +++ b/winsup/cygwin/fhandler.cc @@ -561,10 +561,12 @@ fhandler_base::open (int flags, mode_t mode) access = READ_CONTROL | FILE_READ_ATTRIBUTES; break; case query_write_control: - access = READ_CONTROL | WRITE_OWNER | WRITE_DAC | FILE_WRITE_ATTRIBUTES; + access = READ_CONTROL | WRITE_OWNER | WRITE_DAC + | (pc.fs_is_samba () ? 0 : FILE_WRITE_ATTRIBUTES); break; case query_write_dac: - access = READ_CONTROL | WRITE_DAC | FILE_WRITE_ATTRIBUTES; + access = READ_CONTROL | WRITE_DAC + | (pc.fs_is_samba () ? 0 : FILE_WRITE_ATTRIBUTES); break; case query_write_attributes: access = READ_CONTROL | FILE_WRITE_ATTRIBUTES; diff --git a/winsup/cygwin/release/3.3.2 b/winsup/cygwin/release/3.3.2 index 548c6a6..263c3ef 100644 --- a/winsup/cygwin/release/3.3.2 +++ b/winsup/cygwin/release/3.3.2 @@ -6,3 +6,5 @@ Bug Fixes - Fix a float rounding issue in newlib. Addresses: https://sourceware.org/pipermail/newlib/2021/018626.html + +- Fix a permission problem when writing ACLs on Samba. |