[systemd-devel] [PATCH] missing.h: add more btrfs types and defines

[Michael Olbrich]

---

Hi,

it seems we're getting a lot of btrfs stuff here. Maybe we should ship a
copy of btrfs.h instead?

Michael

 src/shared/missing.h | 151 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 151 insertions(+)

diff --git a/src/shared/missing.h b/src/shared/missing.h
index 802b4957e0a1..ca670cea43f7 100644
--- a/src/shared/missing.h
+++ b/src/shared/missing.h
@@ -230,12 +230,59 @@ static inline int getrandom(void *buffer, size_t count, unsigned flags) {
 #define BTRFS_UUID_SIZE 16
 #endif
 
+#ifndef BTRFS_SUBVOL_RDONLY
+#define BTRFS_SUBVOL_RDONLY (1ULL << 1)
+#endif
+
+#ifndef BTRFS_SUBVOL_NAME_MAX
+#define BTRFS_SUBVOL_NAME_MAX 4039
+#endif
+
+#ifndef BTRFS_INO_LOOKUP_PATH_MAX
+#define BTRFS_INO_LOOKUP_PATH_MAX 4080
+#endif
+
+#ifndef BTRFS_SEARCH_ARGS_BUFSIZE
+#define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
+#endif
+
 #ifndef HAVE_LINUX_BTRFS_H
 struct btrfs_ioctl_vol_args {
         int64_t fd;
         char name[BTRFS_PATH_NAME_MAX + 1];
 };
 
+struct btrfs_qgroup_limit {
+        __u64 flags;
+        __u64 max_rfer;
+        __u64 max_excl;
+        __u64 rsv_rfer;
+        __u64 rsv_excl;
+};
+
+struct btrfs_qgroup_inherit {
+        __u64 flags;
+        __u64 num_qgroups;
+        __u64 num_ref_copies;
+        __u64 num_excl_copies;
+        struct btrfs_qgroup_limit lim;
+        __u64 qgroups[0];
+};
+
+struct btrfs_ioctl_vol_args_v2 {
+        __s64 fd;
+        __u64 transid;
+        __u64 flags;
+        union {
+                struct {
+                        __u64 size;
+                        struct btrfs_qgroup_inherit *qgroup_inherit;
+                };
+                __u64 unused[4];
+        };
+        char name[BTRFS_SUBVOL_NAME_MAX + 1];
+};
+
 struct btrfs_ioctl_dev_info_args {
         uint64_t devid;                         /* in/out */
         uint8_t uuid[BTRFS_UUID_SIZE];          /* in/out */
@@ -251,6 +298,68 @@ struct btrfs_ioctl_fs_info_args {
         uint8_t fsid[BTRFS_FSID_SIZE];          /* out */
         uint64_t reserved[124];                 /* pad to 1k */
 };
+
+struct btrfs_ioctl_ino_lookup_args {
+        __u64 treeid;
+        __u64 objectid;
+        char name[BTRFS_INO_LOOKUP_PATH_MAX];
+};
+
+struct btrfs_ioctl_search_key {
+        /* which root are we searching.  0 is the tree of tree roots */
+        __u64 tree_id;
+
+        /* keys returned will be >= min and <= max */
+        __u64 min_objectid;
+        __u64 max_objectid;
+
+        /* keys returned will be >= min and <= max */
+        __u64 min_offset;
+        __u64 max_offset;
+
+        /* max and min transids to search for */
+        __u64 min_transid;
+        __u64 max_transid;
+
+        /* keys returned will be >= min and <= max */
+        __u32 min_type;
+        __u32 max_type;
+
+        /*
+         * how many items did userland ask for, and how many are we
+         * returning
+         */
+        __u32 nr_items;
+
+        /* align to 64 bits */
+        __u32 unused;
+
+        /* some extra for later */
+        __u64 unused1;
+        __u64 unused2;
+        __u64 unused3;
+        __u64 unused4;
+};
+
+struct btrfs_ioctl_search_header {
+        __u64 transid;
+        __u64 objectid;
+        __u64 offset;
+        __u32 type;
+        __u32 len;
+};
+
+
+struct btrfs_ioctl_search_args {
+        struct btrfs_ioctl_search_key key;
+        char buf[BTRFS_SEARCH_ARGS_BUFSIZE];
+};
+
+struct btrfs_ioctl_clone_range_args {
+        __s64 src_fd;
+        __u64 src_offset, src_length;
+        __u64 dest_offset;
+};
 #endif
 
 #ifndef BTRFS_IOC_DEFRAG
@@ -258,6 +367,48 @@ struct btrfs_ioctl_fs_info_args {
                                  struct btrfs_ioctl_vol_args)
 #endif
 
+#ifndef BTRFS_IOC_CLONE
+#define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int)
+#endif
+
+#ifndef BTRFS_IOC_CLONE_RANGE
+#define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
+                                 struct btrfs_ioctl_clone_range_args)
+#endif
+
+#ifndef BTRFS_IOC_SUBVOL_CREATE
+#define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
+                                 struct btrfs_ioctl_vol_args)
+#endif
+
+#ifndef BTRFS_IOC_SNAP_DESTROY
+#define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
+                                 struct btrfs_ioctl_vol_args)
+#endif
+
+#ifndef BTRFS_IOC_TREE_SEARCH
+#define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \
+                                 struct btrfs_ioctl_search_args)
+#endif
+
+#ifndef BTRFS_IOC_INO_LOOKUP
+#define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \
+                                 struct btrfs_ioctl_ino_lookup_args)
+#endif
+
+#ifndef BTRFS_IOC_SNAP_CREATE_V2
+#define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \
+                                 struct btrfs_ioctl_vol_args_v2)
+#endif
+
+#ifndef BTRFS_IOC_SUBVOL_GETFLAGS
+#define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64)
+#endif
+
+#ifndef BTRFS_IOC_SUBVOL_SETFLAGS
+#define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64)
+#endif
+
 #ifndef BTRFS_IOC_DEV_INFO
 #define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
                                  struct btrfs_ioctl_dev_info_args)
-- 
2.1.4