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authorVyacheslav Dubeyko <slava@dubeyko.com>2013-09-11 23:24:28 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-12 00:59:00 +0200
commit2c92057e45c2d60f859ca3606cfd402c48785d82 (patch)
treec4d2a3c4919f989f81c615875aa2675d87b037fb /fs/hfsplus/Kconfig
parentrtc: simplify devm_request_mem_region/devm_ioremap (diff)
downloadlinux-2c92057e45c2d60f859ca3606cfd402c48785d82.tar.xz
linux-2c92057e45c2d60f859ca3606cfd402c48785d82.zip
hfsplus: add necessary declarations for POSIX ACLs support
This patchset implements POSIX ACLs support in hfsplus driver. Mac OS X beginning with version 10.4 ("Tiger") support NFSv4 ACLs, which are part of the NFSv4 standard. HFS+ stores ACLs in the form of specially named extended attributes (com.apple.system.Security). But this patchset doesn't use "com.apple.system.Security" extended attributes. It implements support of POSIX ACLs in the form of extended attributes with names "system.posix_acl_access" and "system.posix_acl_default". These xattrs are treated only under Linux. POSIX ACLs doesn't mean something under Mac OS X. Thereby, this patch set provides opportunity to use POSIX ACLs under Linux on HFS+ filesystem. This patch: Add CONFIG_HFSPLUS_FS_POSIX_ACL kernel configuration option, DBG_ACL_MOD debugging flag and acl.h file with declaration of essential functions for support POSIX ACLs in hfsplus driver. Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/hfsplus/Kconfig')
-rw-r--r--fs/hfsplus/Kconfig18
1 files changed, 18 insertions, 0 deletions
diff --git a/fs/hfsplus/Kconfig b/fs/hfsplus/Kconfig
index a63371815aab..24bc20fd42f7 100644
--- a/fs/hfsplus/Kconfig
+++ b/fs/hfsplus/Kconfig
@@ -11,3 +11,21 @@ config HFSPLUS_FS
MacOS 8. It includes all Mac specific filesystem data such as
data forks and creator codes, but it also has several UNIX
style features such as file ownership and permissions.
+
+config HFSPLUS_FS_POSIX_ACL
+ bool "HFS+ POSIX Access Control Lists"
+ depends on HFSPLUS_FS
+ select FS_POSIX_ACL
+ help
+ POSIX Access Control Lists (ACLs) support permissions for users and
+ groups beyond the owner/group/world scheme.
+
+ To learn more about Access Control Lists, visit the POSIX ACLs for
+ Linux website <http://acl.bestbits.at/>.
+
+ It needs to understand that POSIX ACLs are treated only under
+ Linux. POSIX ACLs doesn't mean something under Mac OS X.
+ Mac OS X beginning with version 10.4 ("Tiger") support NFSv4 ACLs,
+ which are part of the NFSv4 standard.
+
+ If you don't know what Access Control Lists are, say N