From: Andreas Gruenbacher <agruenba@redhat.com> To: Alexander Viro <viro@zeniv.linux.org.uk> Cc: "J. Bruce Fields" <bfields@fieldses.org>, linux-nfs@vger.kernel.org, Theodore Ts'o <tytso@mit.edu>, Andreas Gruenbacher <agruenba@redhat.com>, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org, Trond Myklebust <trond.myklebust@primarydata.com>, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, Christoph Hellwig <hch@infradead.org>, Andreas Dilger <adilger.kernel@dilger.ca>, linux-fsdevel@vger.kernel.org, Jeff Layton <jlayton@poochiereds.net>, linux-ext4@vger.kernel.org, Anna Schumaker <anna.schumaker@netapp.com> Subject: [PATCH v23 01/22] vfs: Add IS_ACL() and IS_RICHACL() tests Date: Thu, 30 Jun 2016 15:46:52 +0200 [thread overview] Message-ID: <1467294433-3222-2-git-send-email-agruenba@redhat.com> (raw) In-Reply-To: <1467294433-3222-1-git-send-email-agruenba@redhat.com> The vfs does not apply the umask for file systems that support acls. The test used for this used to be called IS_POSIXACL(). Switch to a new IS_ACL() test to check for either posix acls or richacls instead. Add a new MS_RICHACL flag and IS_RICHACL() test for richacls alone. The IS_POSIXACL() test is still needed in some places like nfsd. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Reviewed-by: J. Bruce Fields <bfields@redhat.com> Reviewed-by: Andreas Dilger <adilger@dilger.ca> Reviewed-by: Steve French <steve.french@primarydata.com> --- fs/Kconfig | 3 +++ fs/namei.c | 6 +++--- include/linux/fs.h | 12 ++++++++++++ include/uapi/linux/fs.h | 3 ++- 4 files changed, 20 insertions(+), 4 deletions(-) diff --git a/fs/Kconfig b/fs/Kconfig index b8fcb41..de6de55 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -64,6 +64,9 @@ endif # BLOCK config FS_POSIX_ACL def_bool n +config FS_RICHACL + def_bool n + config EXPORTFS tristate diff --git a/fs/namei.c b/fs/namei.c index 70580ab..7cc5487 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -3115,7 +3115,7 @@ static int lookup_open(struct nameidata *nd, struct path *path, * O_EXCL open we want to return EEXIST not EROFS). */ if (open_flag & O_CREAT) { - if (!IS_POSIXACL(dir->d_inode)) + if (!IS_ACL(dir->d_inode)) mode &= ~current_umask(); if (unlikely(!got_write)) { create_error = -EROFS; @@ -3709,7 +3709,7 @@ retry: if (IS_ERR(dentry)) return PTR_ERR(dentry); - if (!IS_POSIXACL(path.dentry->d_inode)) + if (!IS_ACL(path.dentry->d_inode)) mode &= ~current_umask(); error = security_path_mknod(&path, dentry, mode, dev); if (error) @@ -3780,7 +3780,7 @@ retry: if (IS_ERR(dentry)) return PTR_ERR(dentry); - if (!IS_POSIXACL(path.dentry->d_inode)) + if (!IS_ACL(path.dentry->d_inode)) mode &= ~current_umask(); error = security_path_mkdir(&path, dentry, mode); if (!error) diff --git a/include/linux/fs.h b/include/linux/fs.h index dd28814..4ad130c 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1850,6 +1850,12 @@ struct super_operations { #define IS_IMMUTABLE(inode) ((inode)->i_flags & S_IMMUTABLE) #define IS_POSIXACL(inode) __IS_FLG(inode, MS_POSIXACL) +#ifdef CONFIG_FS_RICHACL +#define IS_RICHACL(inode) __IS_FLG(inode, MS_RICHACL) +#else +#define IS_RICHACL(inode) 0 +#endif + #define IS_DEADDIR(inode) ((inode)->i_flags & S_DEAD) #define IS_NOCMTIME(inode) ((inode)->i_flags & S_NOCMTIME) #define IS_SWAPFILE(inode) ((inode)->i_flags & S_SWAPFILE) @@ -1863,6 +1869,12 @@ struct super_operations { (inode)->i_rdev == WHITEOUT_DEV) /* + * IS_ACL() tells the VFS to not apply the umask + * and use check_acl for acl permission checks when defined. + */ +#define IS_ACL(inode) __IS_FLG(inode, MS_POSIXACL | MS_RICHACL) + +/* * Inode state bits. Protected by inode->i_lock * * Three bits determine the dirty state of the inode, I_DIRTY_SYNC, diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index 3b00f7c..f9c41ef 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -120,7 +120,7 @@ struct inodes_stat_t { #define MS_VERBOSE 32768 /* War is peace. Verbosity is silence. MS_VERBOSE is deprecated. */ #define MS_SILENT 32768 -#define MS_POSIXACL (1<<16) /* VFS does not apply the umask */ +#define MS_POSIXACL (1<<16) /* Supports POSIX ACLs */ #define MS_UNBINDABLE (1<<17) /* change to unbindable */ #define MS_PRIVATE (1<<18) /* change to private */ #define MS_SLAVE (1<<19) /* change to slave */ @@ -130,6 +130,7 @@ struct inodes_stat_t { #define MS_I_VERSION (1<<23) /* Update inode I_version field */ #define MS_STRICTATIME (1<<24) /* Always perform atime updates */ #define MS_LAZYTIME (1<<25) /* Update the on-disk [acm]times lazily */ +#define MS_RICHACL (1<<26) /* Supports richacls */ /* These sb flags are internal to the kernel */ #define MS_NOSEC (1<<28) -- 2.5.5 _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs
WARNING: multiple messages have this Message-ID (diff)
From: Andreas Gruenbacher <agruenba@redhat.com> To: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andreas Gruenbacher <agruenba@redhat.com>, Christoph Hellwig <hch@infradead.org>, "Theodore Ts'o" <tytso@mit.edu>, Andreas Dilger <adilger.kernel@dilger.ca>, "J. Bruce Fields" <bfields@fieldses.org>, Jeff Layton <jlayton@poochiereds.net>, Trond Myklebust <trond.myklebust@primarydata.com>, Anna Schumaker <anna.schumaker@netapp.com>, Dave Chinner <david@fromorbit.com>, linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Subject: [PATCH v23 01/22] vfs: Add IS_ACL() and IS_RICHACL() tests Date: Thu, 30 Jun 2016 15:46:52 +0200 [thread overview] Message-ID: <1467294433-3222-2-git-send-email-agruenba@redhat.com> (raw) In-Reply-To: <1467294433-3222-1-git-send-email-agruenba@redhat.com> The vfs does not apply the umask for file systems that support acls. The test used for this used to be called IS_POSIXACL(). Switch to a new IS_ACL() test to check for either posix acls or richacls instead. Add a new MS_RICHACL flag and IS_RICHACL() test for richacls alone. The IS_POSIXACL() test is still needed in some places like nfsd. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Reviewed-by: J. Bruce Fields <bfields@redhat.com> Reviewed-by: Andreas Dilger <adilger@dilger.ca> Reviewed-by: Steve French <steve.french@primarydata.com> --- fs/Kconfig | 3 +++ fs/namei.c | 6 +++--- include/linux/fs.h | 12 ++++++++++++ include/uapi/linux/fs.h | 3 ++- 4 files changed, 20 insertions(+), 4 deletions(-) diff --git a/fs/Kconfig b/fs/Kconfig index b8fcb41..de6de55 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -64,6 +64,9 @@ endif # BLOCK config FS_POSIX_ACL def_bool n +config FS_RICHACL + def_bool n + config EXPORTFS tristate diff --git a/fs/namei.c b/fs/namei.c index 70580ab..7cc5487 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -3115,7 +3115,7 @@ static int lookup_open(struct nameidata *nd, struct path *path, * O_EXCL open we want to return EEXIST not EROFS). */ if (open_flag & O_CREAT) { - if (!IS_POSIXACL(dir->d_inode)) + if (!IS_ACL(dir->d_inode)) mode &= ~current_umask(); if (unlikely(!got_write)) { create_error = -EROFS; @@ -3709,7 +3709,7 @@ retry: if (IS_ERR(dentry)) return PTR_ERR(dentry); - if (!IS_POSIXACL(path.dentry->d_inode)) + if (!IS_ACL(path.dentry->d_inode)) mode &= ~current_umask(); error = security_path_mknod(&path, dentry, mode, dev); if (error) @@ -3780,7 +3780,7 @@ retry: if (IS_ERR(dentry)) return PTR_ERR(dentry); - if (!IS_POSIXACL(path.dentry->d_inode)) + if (!IS_ACL(path.dentry->d_inode)) mode &= ~current_umask(); error = security_path_mkdir(&path, dentry, mode); if (!error) diff --git a/include/linux/fs.h b/include/linux/fs.h index dd28814..4ad130c 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1850,6 +1850,12 @@ struct super_operations { #define IS_IMMUTABLE(inode) ((inode)->i_flags & S_IMMUTABLE) #define IS_POSIXACL(inode) __IS_FLG(inode, MS_POSIXACL) +#ifdef CONFIG_FS_RICHACL +#define IS_RICHACL(inode) __IS_FLG(inode, MS_RICHACL) +#else +#define IS_RICHACL(inode) 0 +#endif + #define IS_DEADDIR(inode) ((inode)->i_flags & S_DEAD) #define IS_NOCMTIME(inode) ((inode)->i_flags & S_NOCMTIME) #define IS_SWAPFILE(inode) ((inode)->i_flags & S_SWAPFILE) @@ -1863,6 +1869,12 @@ struct super_operations { (inode)->i_rdev == WHITEOUT_DEV) /* + * IS_ACL() tells the VFS to not apply the umask + * and use check_acl for acl permission checks when defined. + */ +#define IS_ACL(inode) __IS_FLG(inode, MS_POSIXACL | MS_RICHACL) + +/* * Inode state bits. Protected by inode->i_lock * * Three bits determine the dirty state of the inode, I_DIRTY_SYNC, diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index 3b00f7c..f9c41ef 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -120,7 +120,7 @@ struct inodes_stat_t { #define MS_VERBOSE 32768 /* War is peace. Verbosity is silence. MS_VERBOSE is deprecated. */ #define MS_SILENT 32768 -#define MS_POSIXACL (1<<16) /* VFS does not apply the umask */ +#define MS_POSIXACL (1<<16) /* Supports POSIX ACLs */ #define MS_UNBINDABLE (1<<17) /* change to unbindable */ #define MS_PRIVATE (1<<18) /* change to private */ #define MS_SLAVE (1<<19) /* change to slave */ @@ -130,6 +130,7 @@ struct inodes_stat_t { #define MS_I_VERSION (1<<23) /* Update inode I_version field */ #define MS_STRICTATIME (1<<24) /* Always perform atime updates */ #define MS_LAZYTIME (1<<25) /* Update the on-disk [acm]times lazily */ +#define MS_RICHACL (1<<26) /* Supports richacls */ /* These sb flags are internal to the kernel */ #define MS_NOSEC (1<<28) -- 2.5.5
next prev parent reply other threads:[~2016-06-30 13:46 UTC|newest] Thread overview: 133+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-06-30 13:46 [PATCH v23 00/22] Richacls (Core and Ext4) Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher [this message] 2016-06-30 13:46 ` [PATCH v23 01/22] vfs: Add IS_ACL() and IS_RICHACL() tests Andreas Gruenbacher 2016-07-05 11:00 ` Jeff Layton 2016-07-05 11:00 ` Jeff Layton 2016-06-30 13:46 ` [PATCH v23 02/22] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher [not found] ` <1467294433-3222-3-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-05 11:02 ` Jeff Layton 2016-07-05 11:02 ` Jeff Layton 2016-07-05 11:02 ` Jeff Layton 2016-06-30 13:46 ` [PATCH v23 03/22] vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD " Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher [not found] ` <1467294433-3222-4-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-05 11:07 ` Jeff Layton 2016-07-05 11:07 ` Jeff Layton 2016-07-05 11:07 ` Jeff Layton 2016-06-30 13:46 ` [PATCH v23 04/22] vfs: Make the inode passed to inode_change_ok non-const Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher [not found] ` <1467294433-3222-5-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-05 11:12 ` Jeff Layton 2016-07-05 11:12 ` Jeff Layton 2016-07-05 11:12 ` Jeff Layton 2016-06-30 13:46 ` [PATCH v23 05/22] vfs: Add permission flags for setting file attributes Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher 2016-07-05 11:18 ` Jeff Layton 2016-07-05 11:18 ` Jeff Layton 2016-06-30 13:46 ` [PATCH v23 06/22] richacl: In-memory representation and helper functions Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher 2016-07-05 11:34 ` Jeff Layton 2016-07-05 11:34 ` Jeff Layton 2016-07-05 11:34 ` Jeff Layton [not found] ` <1467718448.3800.16.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-11 10:11 ` Andreas Gruenbacher 2016-07-11 10:11 ` Andreas Gruenbacher 2016-07-11 10:11 ` Andreas Gruenbacher 2016-06-30 13:46 ` [PATCH v23 07/22] richacl: Permission mapping functions Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher 2016-07-05 13:39 ` Jeff Layton 2016-07-05 13:39 ` Jeff Layton 2016-07-05 13:39 ` Jeff Layton 2016-07-11 13:26 ` Andreas Gruenbacher 2016-07-11 13:26 ` Andreas Gruenbacher 2016-06-30 13:46 ` [PATCH v23 08/22] richacl: Compute maximum file masks from an acl Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher [not found] ` <1467294433-3222-9-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-05 14:22 ` Jeff Layton 2016-07-05 14:22 ` Jeff Layton 2016-07-05 14:22 ` Jeff Layton 2016-07-05 17:08 ` Frank Filz 2016-07-05 17:08 ` Frank Filz 2016-07-05 17:08 ` Frank Filz 2016-07-13 12:34 ` Andreas Gruenbacher 2016-07-13 12:34 ` Andreas Gruenbacher 2016-07-13 19:38 ` Frank Filz 2016-07-13 19:38 ` Frank Filz 2016-07-13 19:38 ` Frank Filz 2016-06-30 13:47 ` [PATCH v23 09/22] richacl: Permission check algorithm Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-07-05 14:59 ` Jeff Layton 2016-07-05 14:59 ` Jeff Layton 2016-07-11 13:28 ` Andreas Gruenbacher 2016-07-11 13:28 ` Andreas Gruenbacher 2016-06-30 13:47 ` [PATCH v23 10/22] posix_acl: Improve xattr fixup code Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher [not found] ` <1467294433-3222-11-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-05 15:38 ` Jeff Layton 2016-07-05 15:38 ` Jeff Layton 2016-07-05 15:38 ` Jeff Layton 2016-06-30 13:47 ` [PATCH v23 11/22] vfs: Cache base_acl objects in inodes Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher [not found] ` <1467294433-3222-12-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-05 15:56 ` Jeff Layton 2016-07-05 15:56 ` Jeff Layton 2016-07-05 15:56 ` Jeff Layton 2016-06-30 13:47 ` [PATCH v23 12/22] vfs: Add get_richacl and set_richacl inode operations Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher [not found] ` <1467294433-3222-13-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-06 18:31 ` Jeff Layton 2016-07-06 18:31 ` Jeff Layton 2016-07-06 18:31 ` Jeff Layton 2016-06-30 13:47 ` [PATCH v23 13/22] vfs: Cache richacl in struct inode Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher [not found] ` <1467294433-3222-14-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-06 18:57 ` Jeff Layton 2016-07-06 18:57 ` Jeff Layton 2016-07-06 18:57 ` Jeff Layton 2016-07-14 20:02 ` Andreas Gruenbacher 2016-07-14 20:02 ` Andreas Gruenbacher [not found] ` <1467831425.2908.16.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-07 14:14 ` David Howells 2016-07-07 14:14 ` David Howells 2016-07-07 14:14 ` David Howells 2016-06-30 13:47 ` [PATCH v23 14/22] richacl: Update the file masks in chmod() Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher [not found] ` <1467294433-3222-15-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-12 11:36 ` Jeff Layton 2016-07-12 11:36 ` Jeff Layton 2016-07-12 11:36 ` Jeff Layton 2016-06-30 13:47 ` [PATCH v23 15/22] richacl: Check if an acl is equivalent to a file mode Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-07-12 11:39 ` Jeff Layton 2016-07-12 11:39 ` Jeff Layton 2016-07-12 11:39 ` Jeff Layton 2016-06-30 13:47 ` [PATCH v23 16/22] richacl: Create-time inheritance Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-07-12 11:41 ` Jeff Layton 2016-07-12 11:41 ` Jeff Layton 2016-06-30 13:47 ` [PATCH v23 17/22] richacl: Automatic Inheritance Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-07-12 11:56 ` Jeff Layton 2016-07-12 11:56 ` Jeff Layton 2016-07-12 11:56 ` Jeff Layton [not found] ` <1468324560.7798.14.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-12 19:11 ` J. Bruce Fields 2016-07-12 19:11 ` J. Bruce Fields 2016-07-12 19:11 ` J. Bruce Fields [not found] ` <20160712191142.GE449-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org> 2016-07-12 20:28 ` Andreas Gruenbacher 2016-07-12 20:28 ` Andreas Gruenbacher 2016-07-12 20:28 ` Andreas Gruenbacher 2016-06-30 13:47 ` [PATCH v23 18/22] richacl: xattr mapping functions Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-07-12 12:02 ` Jeff Layton 2016-07-12 12:02 ` Jeff Layton 2016-07-14 20:33 ` Andreas Gruenbacher 2016-07-14 20:33 ` Andreas Gruenbacher 2016-06-30 13:47 ` [PATCH v23 19/22] richacl: Add richacl xattr handler Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-07-12 12:13 ` Jeff Layton 2016-07-12 12:13 ` Jeff Layton 2016-06-30 13:47 ` [PATCH v23 20/22] vfs: Add richacl permission checking Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-07-12 12:13 ` Jeff Layton 2016-07-12 12:13 ` Jeff Layton 2016-07-12 12:13 ` Jeff Layton [not found] ` <1468325634.7798.24.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-14 20:59 ` Andreas Gruenbacher 2016-07-14 20:59 ` Andreas Gruenbacher 2016-07-14 20:59 ` Andreas Gruenbacher 2016-06-30 13:47 ` [PATCH v23 21/22] ext4: Add richacl support Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-06-30 13:47 ` [PATCH v23 22/22] ext4: Add richacl feature flag Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-06-30 14:11 ` [PATCH v23 00/22] Richacls (Core and Ext4) Volker Lendecke 2016-06-30 14:11 ` Volker Lendecke
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