MFV r330591: 8984 fix for 6764 breaks ACL inheritance
illumos/illumos-gate@e9bacc6d1a71ea3f7082038b2868de8c4dd98bdc
https://github.com/illumos/illumos-gate/commit/e9bacc6d1a71ea3f7082038b2868de8c4dd98bdc
https://www.illumos.org/issues/8984
Consider a directory configured as: drwx-ws---+ 2 henson cpp 3 Jan 23 12:35 dropbox/ user:henson:rwxpdDaARWcC--:f-i----:allow owner@:--------------:f-i----:allow group@:--------------:f-i----:allow everyone@:--------------:f-i----:allow owner@:rwxpdDaARWcC--:-di----:allow group:cpp:-wx-----------:-------:allow owner@:rwxpdDaARWcC--:-------:allow A new file created in this directory ends up looking like: rw-r--r-+ 1 astudent cpp 0 Jan 23 12:39 testfile user:henson:rw-pdDaARWcC--:------I:allow owner@:--------------:------I:allow group@:--------------:------I:allow everyone@:--------------:------I:allow owner@:rw-p--aARWcCos:-------:allow group@:r-----a-R-c--s:-------:allow everyone@:r-----a-R-c--s:-------:allow with extraneous group@ and everyone@ entries allowing read access that shouldn't exist. Per Albert Lee on the zfs mailing list: "aclinherit=passthrough/passthrough-x should still ignore the requested mode when an inheritable ACE for owner@ group@, or everyone@ is present in the parent directory. It appears there was an oversight in my fix for https://www.illumos.org/issues/6764 which made calling zfs_acl_chmod from zfs_acl_inherit unconditional. I think the parent ACL check for aclinherit=passthrough needs to be reintroduced in zfs_acl_inherit." We have a large number of faculty who use dropbox directories like the example to have students submit projects. All of these directories are now allowing
Reviewed by: Sam Zaydel <szaydel@racktopsystems.com>
Reviewed by: Paul B. Henson <henson@acm.org>
Reviewed by: Prakash Surya <prakash.surya@delphix.com>
Approved by: Matthew Ahrens <mahrens@delphix.com>
Author: Dominik Hassler <hadfl@omniosce.org>
PR: 216886
MFC after: 2 weeks