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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /fs/reiserfs/acl.h
Initial import
Diffstat (limited to 'fs/reiserfs/acl.h')
-rw-r--r--fs/reiserfs/acl.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/fs/reiserfs/acl.h b/fs/reiserfs/acl.h
new file mode 100644
index 000000000..4a211f5b3
--- /dev/null
+++ b/fs/reiserfs/acl.h
@@ -0,0 +1,76 @@
+#include <linux/init.h>
+#include <linux/posix_acl.h>
+
+#define REISERFS_ACL_VERSION 0x0001
+
+typedef struct {
+ __le16 e_tag;
+ __le16 e_perm;
+ __le32 e_id;
+} reiserfs_acl_entry;
+
+typedef struct {
+ __le16 e_tag;
+ __le16 e_perm;
+} reiserfs_acl_entry_short;
+
+typedef struct {
+ __le32 a_version;
+} reiserfs_acl_header;
+
+static inline size_t reiserfs_acl_size(int count)
+{
+ if (count <= 4) {
+ return sizeof(reiserfs_acl_header) +
+ count * sizeof(reiserfs_acl_entry_short);
+ } else {
+ return sizeof(reiserfs_acl_header) +
+ 4 * sizeof(reiserfs_acl_entry_short) +
+ (count - 4) * sizeof(reiserfs_acl_entry);
+ }
+}
+
+static inline int reiserfs_acl_count(size_t size)
+{
+ ssize_t s;
+ size -= sizeof(reiserfs_acl_header);
+ s = size - 4 * sizeof(reiserfs_acl_entry_short);
+ if (s < 0) {
+ if (size % sizeof(reiserfs_acl_entry_short))
+ return -1;
+ return size / sizeof(reiserfs_acl_entry_short);
+ } else {
+ if (s % sizeof(reiserfs_acl_entry))
+ return -1;
+ return s / sizeof(reiserfs_acl_entry) + 4;
+ }
+}
+
+#ifdef CONFIG_REISERFS_FS_POSIX_ACL
+struct posix_acl *reiserfs_get_acl(struct inode *inode, int type);
+int reiserfs_set_acl(struct inode *inode, struct posix_acl *acl, int type);
+int reiserfs_acl_chmod(struct inode *inode);
+int reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
+ struct inode *dir, struct dentry *dentry,
+ struct inode *inode);
+int reiserfs_cache_default_acl(struct inode *dir);
+
+#else
+
+#define reiserfs_cache_default_acl(inode) 0
+#define reiserfs_get_acl NULL
+#define reiserfs_set_acl NULL
+
+static inline int reiserfs_acl_chmod(struct inode *inode)
+{
+ return 0;
+}
+
+static inline int
+reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
+ const struct inode *dir, struct dentry *dentry,
+ struct inode *inode)
+{
+ return 0;
+}
+#endif