Hello, here's another update of the richacl patch queue. Changes since the last posting (https://lwn.net/Articles/652058/): * Version 4 of the patch queue from June 24 introduced a bug when creating files, where the owner and others would always get the permissions specified in the owner and other permission bits of the create mode, independent of an inheritable acl. In fact the create mode should only be an upper bound on the permissions granted by an inherited acl, or, in the absence of an inheritable acl, the umask. In contrast, when setting the file permission bits with chmod, the owner and other permissions should be set to the new mode. This is fixed in the code by introducing an additional RICHACL_WRITE_THROUGH flag which is set by chmod but not at file create time. * Suport for MAY_CREATE_FILE and MAY_CREATE_DIR in nfsd. * Some minor fixes and checkpatch cleanups. The complete patch queue is available here: git://git.kernel.org/pub/scm/linux/kernel/git/agruen/linux-richacl.git \ richacl-2015-08-04 Open issues in nfs: * When a user or group name cannot be mapped, nfs's idmapper always maps it to nobody. That's good enough for mapping the file owner and owning group, but not for identifiers in acls. For now, to get the nfs richacl support somewhat working, I'm explicitly checking if mapping has resulted in uid/gid 99 in the kernel. * When the nfs server replies with NFS4ERR_BADNAME for any user or group name lookup, the client will stop sending numeric uids and gids to the server even when the lookup wasn't numeric. From then on, the client will translate uids and gids that have no mapping to the string "nobody", and the server will reject them. This problem is not specific to acls. * The use of GFP_ flags needs to be looked at. Other open issues: * It would be nice if the MAY_DELETE_SELF flag could override the sticky directory check as it did in the previous version of this patch queue. I couldn't come up with a clean way of achieving that. Thanks, Andreas Andreas Gruenbacher (38): vfs: Add IS_ACL() and IS_RICHACL() tests vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD permission flags vfs: Make the inode passed to inode_change_ok non-const vfs: Add permission flags for setting file attributes richacl: In-memory representation and helper functions richacl: Permission mapping functions richacl: Compute maximum file masks from an acl richacl: Update the file masks in chmod() richacl: Permission check algorithm vfs: Cache base_acl objects in inodes vfs: Cache richacl in struct inode richacl: Check if an acl is equivalent to a file mode richacl: Create-time inheritance richacl: Automatic Inheritance richacl: xattr mapping functions vfs: Add richacl permission checking richacl: acl editing helper functions richacl: Move everyone@ aces down the acl richacl: Propagate everyone@ permissions to other aces richacl: Set the owner permissions to the owner mask richacl: Set the other permissions to the other mask richacl: Isolate the owner and group classes richacl: Apply the file masks to a richacl richacl: Create richacl from mode values nfsd: Keep list of acls to dispose of in compoundargs nfsd: Use richacls as internal acl representation nfsd: Add richacl support nfsd: Add support for the v4.1 dacl attribute nfsd: Add support for the MAY_CREATE_{FILE,DIR} permissions richacl: Add support for unmapped identifiers ext4: Don't allow unmapped identifiers in richacls sunrpc: Allow to demand-allocate pages to encode into sunrpc: Add xdr_init_encode_pages nfs: Fix GETATTR bitmap verification nfs: Remove unused xdr page offsets in getacl/setacl arguments nfs: Add richacl support nfs: Add support for the v4.1 dacl attribute Aneesh Kumar K.V (2): ext4: Add richacl support ext4: Add richacl feature flag drivers/staging/lustre/lustre/llite/llite_lib.c | 2 +- fs/Kconfig | 9 + fs/Makefile | 3 + fs/attr.c | 81 ++- fs/ext4/Kconfig | 15 + fs/ext4/Makefile | 1 + fs/ext4/acl.c | 6 +- fs/ext4/acl.h | 12 +- fs/ext4/ext4.h | 6 +- fs/ext4/file.c | 6 +- fs/ext4/ialloc.c | 7 +- fs/ext4/inode.c | 10 +- fs/ext4/namei.c | 11 +- fs/ext4/richacl.c | 218 ++++++ fs/ext4/richacl.h | 47 ++ fs/ext4/super.c | 42 +- fs/ext4/xattr.c | 6 + fs/ext4/xattr.h | 1 + fs/f2fs/acl.c | 4 +- fs/inode.c | 15 +- fs/namei.c | 108 ++- fs/nfs/inode.c | 3 - fs/nfs/nfs4proc.c | 701 +++++++++++++----- fs/nfs/nfs4xdr.c | 257 ++++++- fs/nfs/super.c | 4 +- fs/nfs_common/Makefile | 1 + fs/nfs_common/nfs4acl.c | 44 ++ fs/nfsd/Kconfig | 1 + fs/nfsd/acl.h | 23 +- fs/nfsd/nfs4acl.c | 477 ++++++------ fs/nfsd/nfs4proc.c | 24 +- fs/nfsd/nfs4xdr.c | 268 ++++--- fs/nfsd/nfsd.h | 6 +- fs/nfsd/nfsfh.c | 8 +- fs/nfsd/vfs.c | 28 +- fs/nfsd/vfs.h | 17 +- fs/nfsd/xdr4.h | 12 +- fs/posix_acl.c | 26 +- fs/richacl_base.c | 682 +++++++++++++++++ fs/richacl_compat.c | 927 ++++++++++++++++++++++++ fs/richacl_inode.c | 295 ++++++++ fs/richacl_xattr.c | 267 +++++++ fs/xattr.c | 34 +- include/linux/fs.h | 50 +- include/linux/nfs4.h | 24 +- include/linux/nfs4acl.h | 7 + include/linux/nfs_fs.h | 1 - include/linux/nfs_fs_sb.h | 2 + include/linux/nfs_xdr.h | 13 +- include/linux/posix_acl.h | 12 +- include/linux/richacl.h | 368 ++++++++++ include/linux/richacl_compat.h | 40 + include/linux/richacl_xattr.h | 64 ++ include/linux/sunrpc/xdr.h | 2 + include/uapi/linux/fs.h | 3 +- include/uapi/linux/nfs4.h | 3 +- include/uapi/linux/xattr.h | 2 + net/sunrpc/xdr.c | 34 + 58 files changed, 4615 insertions(+), 725 deletions(-) create mode 100644 fs/ext4/richacl.c create mode 100644 fs/ext4/richacl.h create mode 100644 fs/nfs_common/nfs4acl.c create mode 100644 fs/richacl_base.c create mode 100644 fs/richacl_compat.c create mode 100644 fs/richacl_inode.c create mode 100644 fs/richacl_xattr.c create mode 100644 include/linux/nfs4acl.h create mode 100644 include/linux/richacl.h create mode 100644 include/linux/richacl_compat.h create mode 100644 include/linux/richacl_xattr.h -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
