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Diffstat (limited to 'include/uapi/linux/fuse.h')
-rw-r--r--include/uapi/linux/fuse.h28
1 files changed, 27 insertions, 1 deletions
diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h
index e3c54109bae9..c71f12429e3d 100644
--- a/include/uapi/linux/fuse.h
+++ b/include/uapi/linux/fuse.h
@@ -201,6 +201,9 @@
* 7.38
* - add FUSE_EXPIRE_ONLY flag to fuse_notify_inval_entry
* - add FOPEN_PARALLEL_DIRECT_WRITES
+ * - add total_extlen to fuse_in_header
+ * - add FUSE_MAX_NR_SECCTX
+ * - add extension header
*/
#ifndef _LINUX_FUSE_H
@@ -503,6 +506,15 @@ struct fuse_file_lock {
*/
#define FUSE_EXPIRE_ONLY (1 << 0)
+/**
+ * extension type
+ * FUSE_MAX_NR_SECCTX: maximum value of &fuse_secctx_header.nr_secctx
+ */
+enum fuse_ext_type {
+ /* Types 0..31 are reserved for fuse_secctx_header */
+ FUSE_MAX_NR_SECCTX = 31,
+};
+
enum fuse_opcode {
FUSE_LOOKUP = 1,
FUSE_FORGET = 2, /* no reply */
@@ -886,7 +898,8 @@ struct fuse_in_header {
uint32_t uid;
uint32_t gid;
uint32_t pid;
- uint32_t padding;
+ uint16_t total_extlen; /* length of extensions in 8byte units */
+ uint16_t padding;
};
struct fuse_out_header {
@@ -1047,4 +1060,17 @@ struct fuse_secctx_header {
uint32_t nr_secctx;
};
+/**
+ * struct fuse_ext_header - extension header
+ * @size: total size of this extension including this header
+ * @type: type of extension
+ *
+ * This is made compatible with fuse_secctx_header by using type values >
+ * FUSE_MAX_NR_SECCTX
+ */
+struct fuse_ext_header {
+ uint32_t size;
+ uint32_t type;
+};
+
#endif /* _LINUX_FUSE_H */