71 lines
2.8 KiB
Plaintext
71 lines
2.8 KiB
Plaintext
What's new:
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- New, unified implementation of POSIX permission and ACL handling. The
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new ACLs now store the POSIX ACL MASK/CLASS_OBJ permission mask, and
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they allow to inherit the S_ISGID bit. ACL inheritance now really
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works as desired, in a limited, but theoretically equivalent fashion
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even for non-Cygwin processes.
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To accommodate standard Windows ACLs, the POSIX permissions of the
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owner and all other users in the ACL are computed using the Windows
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AuthZ API. This may slow down the computation of POSIX permissions
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noticably in some circumstances, but is generally more correct. The
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new code also ignores SYSTEM and Administrators group permissions when
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computing the MASK/CLASS_OBJ permission mask on old ACLs, and it
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doesn't deny access to SYSTEM and Administrators group based on the
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value of MASK/CLASS_OBJ when creating the new ACLs.
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The new code now handles the S_ISGID bit on directories as on Linux:
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Setting S_ISGID on a directory causes new files and subdirs created
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within to inherit its group, rather than the primary group of the user
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who created the file. This only works for files and directories
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created by Cygwin processes.
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- New mount type "usertemp" which allows to mount a POSIX directory to
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the Windows per-user temporary directory.
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- cygpath has a new -U option, which creates cygdrive paths using the
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unambiguous /proc/cygdrive prefix.
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- New API: rpmatch.
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What changed:
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-------------
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- setfacl(1) now allows to use the -b and -k option combined to allow reducing
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an ACL to only reflect standard POSIX permissions.
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- Fix (numeric and monetary) decimal point and thousands separator in
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fa_IR and ps_AF locales to be aligned with Linux.
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Bug Fixes
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---------
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- Not a bug fix as such, but a workaround for new behaviour in Windows 10
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version 1511 64 bit. This version introduces a problem which existed in
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a similar variation (just vice versa) in XP and Server 2003 64 bit as well.
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An unexpected stack arrangement when starting a 64 bit Cygwin application
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from a 32 bit application (e.g. 32 bit CMD.EXE) broke Cygwin's fork.
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Addresses: https://cygwin.com/ml/cygwin/2015-12/msg00003.html
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- Replaced old, buggy strtold implementation with well-tested gdtoa version
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from David M. Gay.
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Addresses: https://cygwin.com/ml/cygwin/2015-11/msg00205.html
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- Fix handling of relative paths in native symlinks if the target is in a
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drive's root dir or one level below.
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Addresses: https://cygwin.com/ml/cygwin/2015-11/msg00277.html
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- Fix a SEGV when calling `kill -l 0'.
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Addresses: https://cygwin.com/ml/cygwin/2015-11/msg00430.html
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- Fix a race condition in signal handling.
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Addresses: https://cygwin.com/ml/cygwin/2015-11/msg00387.html
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- Fix a potential crash reading invalid passwd and group entries from
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/etc/passwd and /etc/group.
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Addresses: https://cygwin.com/ml/cygwin/2015-12/msg00170.html
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