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WSL2-Linux-Kernel/include/linux/generic_acl.h

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make generic_acl slightly more generic Now that we cache the ACL pointers in the generic inode all the generic_acl cruft can go away and generic_acl.c can directly implement xattr handlers dealing with the full Posix ACL semantics for in-memory filesystems. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-11-03 18:44:44 +03:00
#ifndef LINUX_GENERIC_ACL_H
#define LINUX_GENERIC_ACL_H
[PATCH] Generic infrastructure for acls The patches solve the following problem: We want to grant access to devices based on who is logged in from where, etc. This includes switching back and forth between multiple user sessions, etc. Using ACLs to define device access for logged-in users gives us all the flexibility we need in order to fully solve the problem. Device special files nowadays usually live on tmpfs, hence tmpfs ACLs. Different distros have come up with solutions that solve the problem to different degrees: SUSE uses a resource manager which tracks login sessions and sets ACLs on device inodes as appropriate. RedHat uses pam_console, which changes the primary file ownership to the logged-in user. Others use a set of groups that users must be in in order to be granted the appropriate accesses. The freedesktop.org project plans to implement a combination of a console-tracker and a HAL-device-list based solution to grant access to devices to users, and more distros will likely follow this approach. These patches have first been posted here on 2 February 2005, and again on 8 January 2006. We have been shipping them in SLES9 and SLES10 with no problems reported. The previous submission is archived here: http://lkml.org/lkml/2006/1/8/229 http://lkml.org/lkml/2006/1/8/230 http://lkml.org/lkml/2006/1/8/231 This patch: Add some infrastructure for access control lists on in-memory filesystems such as tmpfs. Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-29 13:01:34 +04:00
make generic_acl slightly more generic Now that we cache the ACL pointers in the generic inode all the generic_acl cruft can go away and generic_acl.c can directly implement xattr handlers dealing with the full Posix ACL semantics for in-memory filesystems. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-11-03 18:44:44 +03:00
#include <linux/xattr.h>
[PATCH] Generic infrastructure for acls The patches solve the following problem: We want to grant access to devices based on who is logged in from where, etc. This includes switching back and forth between multiple user sessions, etc. Using ACLs to define device access for logged-in users gives us all the flexibility we need in order to fully solve the problem. Device special files nowadays usually live on tmpfs, hence tmpfs ACLs. Different distros have come up with solutions that solve the problem to different degrees: SUSE uses a resource manager which tracks login sessions and sets ACLs on device inodes as appropriate. RedHat uses pam_console, which changes the primary file ownership to the logged-in user. Others use a set of groups that users must be in in order to be granted the appropriate accesses. The freedesktop.org project plans to implement a combination of a console-tracker and a HAL-device-list based solution to grant access to devices to users, and more distros will likely follow this approach. These patches have first been posted here on 2 February 2005, and again on 8 January 2006. We have been shipping them in SLES9 and SLES10 with no problems reported. The previous submission is archived here: http://lkml.org/lkml/2006/1/8/229 http://lkml.org/lkml/2006/1/8/230 http://lkml.org/lkml/2006/1/8/231 This patch: Add some infrastructure for access control lists on in-memory filesystems such as tmpfs. Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-29 13:01:34 +04:00
make generic_acl slightly more generic Now that we cache the ACL pointers in the generic inode all the generic_acl cruft can go away and generic_acl.c can directly implement xattr handlers dealing with the full Posix ACL semantics for in-memory filesystems. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-11-03 18:44:44 +03:00
struct inode;
[PATCH] Generic infrastructure for acls The patches solve the following problem: We want to grant access to devices based on who is logged in from where, etc. This includes switching back and forth between multiple user sessions, etc. Using ACLs to define device access for logged-in users gives us all the flexibility we need in order to fully solve the problem. Device special files nowadays usually live on tmpfs, hence tmpfs ACLs. Different distros have come up with solutions that solve the problem to different degrees: SUSE uses a resource manager which tracks login sessions and sets ACLs on device inodes as appropriate. RedHat uses pam_console, which changes the primary file ownership to the logged-in user. Others use a set of groups that users must be in in order to be granted the appropriate accesses. The freedesktop.org project plans to implement a combination of a console-tracker and a HAL-device-list based solution to grant access to devices to users, and more distros will likely follow this approach. These patches have first been posted here on 2 February 2005, and again on 8 January 2006. We have been shipping them in SLES9 and SLES10 with no problems reported. The previous submission is archived here: http://lkml.org/lkml/2006/1/8/229 http://lkml.org/lkml/2006/1/8/230 http://lkml.org/lkml/2006/1/8/231 This patch: Add some infrastructure for access control lists on in-memory filesystems such as tmpfs. Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-29 13:01:34 +04:00
fs: xattr_handler table should be const The entries in xattr handler table should be immutable (ie const) like other operation tables. Later patches convert common filesystems. Uncoverted filesystems will still work, but will generate a compiler warning. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-05-14 04:53:14 +04:00
extern const struct xattr_handler generic_acl_access_handler;
extern const struct xattr_handler generic_acl_default_handler;
[PATCH] Generic infrastructure for acls The patches solve the following problem: We want to grant access to devices based on who is logged in from where, etc. This includes switching back and forth between multiple user sessions, etc. Using ACLs to define device access for logged-in users gives us all the flexibility we need in order to fully solve the problem. Device special files nowadays usually live on tmpfs, hence tmpfs ACLs. Different distros have come up with solutions that solve the problem to different degrees: SUSE uses a resource manager which tracks login sessions and sets ACLs on device inodes as appropriate. RedHat uses pam_console, which changes the primary file ownership to the logged-in user. Others use a set of groups that users must be in in order to be granted the appropriate accesses. The freedesktop.org project plans to implement a combination of a console-tracker and a HAL-device-list based solution to grant access to devices to users, and more distros will likely follow this approach. These patches have first been posted here on 2 February 2005, and again on 8 January 2006. We have been shipping them in SLES9 and SLES10 with no problems reported. The previous submission is archived here: http://lkml.org/lkml/2006/1/8/229 http://lkml.org/lkml/2006/1/8/230 http://lkml.org/lkml/2006/1/8/231 This patch: Add some infrastructure for access control lists on in-memory filesystems such as tmpfs. Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-29 13:01:34 +04:00
make generic_acl slightly more generic Now that we cache the ACL pointers in the generic inode all the generic_acl cruft can go away and generic_acl.c can directly implement xattr handlers dealing with the full Posix ACL semantics for in-memory filesystems. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-11-03 18:44:44 +03:00
int generic_acl_init(struct inode *, struct inode *);
int generic_acl_chmod(struct inode *);
[PATCH] Generic infrastructure for acls The patches solve the following problem: We want to grant access to devices based on who is logged in from where, etc. This includes switching back and forth between multiple user sessions, etc. Using ACLs to define device access for logged-in users gives us all the flexibility we need in order to fully solve the problem. Device special files nowadays usually live on tmpfs, hence tmpfs ACLs. Different distros have come up with solutions that solve the problem to different degrees: SUSE uses a resource manager which tracks login sessions and sets ACLs on device inodes as appropriate. RedHat uses pam_console, which changes the primary file ownership to the logged-in user. Others use a set of groups that users must be in in order to be granted the appropriate accesses. The freedesktop.org project plans to implement a combination of a console-tracker and a HAL-device-list based solution to grant access to devices to users, and more distros will likely follow this approach. These patches have first been posted here on 2 February 2005, and again on 8 January 2006. We have been shipping them in SLES9 and SLES10 with no problems reported. The previous submission is archived here: http://lkml.org/lkml/2006/1/8/229 http://lkml.org/lkml/2006/1/8/230 http://lkml.org/lkml/2006/1/8/231 This patch: Add some infrastructure for access control lists on in-memory filesystems such as tmpfs. Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-29 13:01:34 +04:00
make generic_acl slightly more generic Now that we cache the ACL pointers in the generic inode all the generic_acl cruft can go away and generic_acl.c can directly implement xattr handlers dealing with the full Posix ACL semantics for in-memory filesystems. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-11-03 18:44:44 +03:00
#endif /* LINUX_GENERIC_ACL_H */