Clean checkin of the 6.03 codeandroid-wear-o-preview-4android-wear-o-preview-3android-wear-8.1.0_r1android-vts-8.1_r9android-vts-8.1_r8android-vts-8.1_r7android-vts-8.1_r6android-vts-8.1_r5android-vts-8.1_r4android-vts-8.1_r3android-vts-8.1_r14android-vts-8.1_r13android-vts-8.1_r12android-vts-8.1_r11android-vts-8.1_r10android-vts-8.0_r9android-vts-8.0_r8android-vts-8.0_r7android-vts-8.0_r6android-vts-8.0_r2android-vts-8.0_r13android-vts-8.0_r12android-vts-8.0_r11android-vts-8.0_r10android-vts-8.0_r1android-security-8.1.0_r93android-security-8.1.0_r92android-security-8.1.0_r91android-security-8.1.0_r90android-security-8.1.0_r89android-security-8.1.0_r88android-security-8.1.0_r87android-security-8.1.0_r86android-security-8.1.0_r85android-security-8.1.0_r84android-security-8.1.0_r83android-security-8.1.0_r82android-security-8.0.0_r54android-security-8.0.0_r53android-security-8.0.0_r52android-o-preview-4android-o-preview-3android-o-preview-2android-o-mr1-preview-2android-o-mr1-preview-1android-o-mr1-iot-release-smart-display-r9android-o-mr1-iot-release-smart-display-r8android-o-mr1-iot-release-smart-display-r5android-o-mr1-iot-release-smart-display-r40.1Jandroid-o-mr1-iot-release-smart-display-r4android-o-mr1-iot-release-smart-display-r39android-o-mr1-iot-release-smart-display-r30android-o-mr1-iot-release-smart-display-r3android-o-mr1-iot-release-smart-display-r22android-o-mr1-iot-release-smart-display-r14android-o-mr1-iot-release-smart-clock-r6android-o-mr1-iot-release-smart-clock-r2android-o-mr1-iot-release-smart-clock-fsiandroid-o-mr1-iot-release-smart-clock-fcsandroid-o-mr1-iot-release-cube_r2android-o-mr1-iot-release-cube-fsiandroid-o-mr1-iot-release-cube-fcsandroid-o-mr1-iot-release-1.0.8android-o-mr1-iot-release-1.0.7android-o-mr1-iot-release-1.0.5android-o-mr1-iot-release-1.0.4android-o-mr1-iot-release-1.0.3android-o-mr1-iot-release-1.0.2android-o-mr1-iot-release-1.0.14android-o-mr1-iot-release-1.0.13android-o-mr1-iot-release-1.0.12android-o-mr1-iot-release-1.0.10android-o-mr1-iot-release-1.0.1android-o-mr1-iot-release-1.0.0android-o-mr1-iot-preview-8android-o-mr1-iot-preview-7android-o-mr1-iot-preview-6android-o-iot-preview-5android-cts-8.1_r9android-cts-8.1_r8android-cts-8.1_r7android-cts-8.1_r6android-cts-8.1_r5android-cts-8.1_r4android-cts-8.1_r3android-cts-8.1_r25android-cts-8.1_r24android-cts-8.1_r23android-cts-8.1_r22android-cts-8.1_r21android-cts-8.1_r20android-cts-8.1_r2android-cts-8.1_r19android-cts-8.1_r18android-cts-8.1_r17android-cts-8.1_r16android-cts-8.1_r15android-cts-8.1_r14android-cts-8.1_r13android-cts-8.1_r12android-cts-8.1_r11android-cts-8.1_r10android-cts-8.1_r1android-cts-8.0_r9android-cts-8.0_r8android-cts-8.0_r7android-cts-8.0_r6android-cts-8.0_r5android-cts-8.0_r4android-cts-8.0_r3android-cts-8.0_r26android-cts-8.0_r25android-cts-8.0_r24android-cts-8.0_r23android-cts-8.0_r22android-cts-8.0_r21android-cts-8.0_r20android-cts-8.0_r2android-cts-8.0_r19android-cts-8.0_r18android-cts-8.0_r17android-cts-8.0_r16android-cts-8.0_r15android-cts-8.0_r14android-cts-8.0_r13android-cts-8.0_r12android-cts-8.0_r11android-cts-8.0_r10android-cts-8.0_r1android-8.1.0_r9android-8.1.0_r81android-8.1.0_r80android-8.1.0_r8android-8.1.0_r79android-8.1.0_r78android-8.1.0_r77android-8.1.0_r76android-8.1.0_r75android-8.1.0_r74android-8.1.0_r73android-8.1.0_r72android-8.1.0_r71android-8.1.0_r70android-8.1.0_r7android-8.1.0_r69android-8.1.0_r68android-8.1.0_r67android-8.1.0_r66android-8.1.0_r65android-8.1.0_r64android-8.1.0_r63android-8.1.0_r62android-8.1.0_r61android-8.1.0_r60android-8.1.0_r6android-8.1.0_r53android-8.1.0_r52android-8.1.0_r51android-8.1.0_r50android-8.1.0_r5android-8.1.0_r48android-8.1.0_r47android-8.1.0_r46android-8.1.0_r45android-8.1.0_r43android-8.1.0_r42android-8.1.0_r41android-8.1.0_r40android-8.1.0_r4android-8.1.0_r39android-8.1.0_r38android-8.1.0_r37android-8.1.0_r36android-8.1.0_r35android-8.1.0_r33android-8.1.0_r32android-8.1.0_r31android-8.1.0_r30android-8.1.0_r3android-8.1.0_r29android-8.1.0_r28android-8.1.0_r27android-8.1.0_r26android-8.1.0_r25android-8.1.0_r23android-8.1.0_r22android-8.1.0_r21android-8.1.0_r20android-8.1.0_r2android-8.1.0_r19android-8.1.0_r18android-8.1.0_r17android-8.1.0_r16android-8.1.0_r15android-8.1.0_r14android-8.1.0_r13android-8.1.0_r12android-8.1.0_r11android-8.1.0_r10android-8.1.0_r1android-8.0.0_r9android-8.0.0_r7android-8.0.0_r51android-8.0.0_r50android-8.0.0_r49android-8.0.0_r48android-8.0.0_r47android-8.0.0_r46android-8.0.0_r45android-8.0.0_r44android-8.0.0_r43android-8.0.0_r42android-8.0.0_r41android-8.0.0_r40android-8.0.0_r4android-8.0.0_r39android-8.0.0_r38android-8.0.0_r37android-8.0.0_r36android-8.0.0_r35android-8.0.0_r34android-8.0.0_r33android-8.0.0_r32android-8.0.0_r31android-8.0.0_r30android-8.0.0_r3android-8.0.0_r29android-8.0.0_r28android-8.0.0_r27android-8.0.0_r26android-8.0.0_r25android-8.0.0_r24android-8.0.0_r23android-8.0.0_r22android-8.0.0_r21android-8.0.0_r2android-8.0.0_r17android-8.0.0_r16android-8.0.0_r15android-8.0.0_r13android-8.0.0_r12android-8.0.0_r11android-8.0.0_r10android-8.0.0_r1security-oc-releasesecurity-oc-mr1-releaseoreo-vts-releaseoreo-security-releaseoreo-releaseoreo-r6-releaseoreo-r5-releaseoreo-r4-releaseoreo-r3-releaseoreo-r2-releaseoreo-mr1-wear-releaseoreo-mr1-vts-releaseoreo-mr1-security-releaseoreo-mr1-s1-releaseoreo-mr1-releaseoreo-mr1-iot-releaseoreo-mr1-devoreo-mr1-cuttlefish-testingoreo-mr1-cts-releaseoreo-mr1-1.2-iot-releaseoreo-m8-releaseoreo-m7-releaseoreo-m6-s4-releaseoreo-m6-s3-releaseoreo-m6-s2-releaseoreo-m5-releaseoreo-m4-s9-releaseoreo-m4-s8-releaseoreo-m4-s7-releaseoreo-m4-s6-releaseoreo-m4-s5-releaseoreo-m4-s4-releaseoreo-m4-s3-releaseoreo-m4-s2-releaseoreo-m4-s12-releaseoreo-m4-s11-releaseoreo-m4-s10-releaseoreo-m4-s1-releaseoreo-m3-releaseoreo-m2-s5-releaseoreo-m2-s4-releaseoreo-m2-s3-releaseoreo-m2-s2-releaseoreo-m2-s1-releaseoreo-m2-releaseoreo-dr3-releaseoreo-dr2-releaseoreo-dr1-releaseoreo-dr1-devoreo-devoreo-cts-releaseo-preview-4o-preview-3o-preview-2o-mr1-iot-preview-8o-mr1-iot-preview-7o-mr1-iot-preview-6o-iot-preview-5

BUG: 32495852
Change-Id: I5038a3bb41e217380c1188463daec07b1e9b6b48

1 files changed, 191 insertions, 0 deletions

diff --git a/extlinux/btrfs.h b/extlinux/btrfs.h
new file mode 100644
index 0000000..17a10be
--- /dev/null
+++ b/extlinux/btrfs.h
@@ -0,0 +1,191 @@
+#ifndef _BTRFS_H_
+#define _BTRFS_H_
+
+#include <asm/types.h>
+#include <linux/ioctl.h>
+
+#define BTRFS_SUPER_MAGIC 0x9123683E
+#define BTRFS_SUPER_INFO_OFFSET (64 * 1024)
+#define BTRFS_SUPER_INFO_SIZE 4096
+#define BTRFS_MAGIC "_BHRfS_M"
+#define BTRFS_MAGIC_L 8
+#define BTRFS_CSUM_SIZE 32
+#define BTRFS_FSID_SIZE 16
+#define BTRFS_UUID_SIZE 16
+
+/* Fixed areas reserved for the boot loader */
+#define BTRFS_BOOT_AREA_A_OFFSET	0
+#define BTRFS_BOOT_AREA_A_SIZE		BTRFS_SUPER_INFO_OFFSET
+#define BTRFS_BOOT_AREA_B_OFFSET	(256 * 1024)
+#define BTRFS_BOOT_AREA_B_SIZE		((1024-256) * 1024)
+
+typedef __u64 u64;
+typedef __u32 u32;
+typedef __u16 u16;
+typedef __u8 u8;
+typedef u64 __le64;
+typedef u16 __le16;
+
+#define BTRFS_ROOT_BACKREF_KEY  144
+#define BTRFS_ROOT_TREE_DIR_OBJECTID 6ULL
+#define BTRFS_DIR_ITEM_KEY      84
+
+/*
+ *  * this is used for both forward and backward root refs
+ *   */
+struct btrfs_root_ref {
+        __le64 dirid;
+        __le64 sequence;
+        __le16 name_len;
+} __attribute__ ((__packed__));
+
+struct btrfs_disk_key {
+        __le64 objectid;
+        u8 type;
+        __le64 offset;
+} __attribute__ ((__packed__));
+
+struct btrfs_dir_item {
+        struct btrfs_disk_key location;
+        __le64 transid;
+        __le16 data_len;
+        __le16 name_len;
+        u8 type;
+} __attribute__ ((__packed__));
+
+struct btrfs_super_block {
+        uint8_t csum[32];
+        uint8_t fsid[16];
+        uint64_t bytenr;
+        uint64_t flags;
+        uint8_t magic[8];
+        uint64_t generation;
+        uint64_t root;
+        uint64_t chunk_root;
+        uint64_t log_root;
+        uint64_t log_root_transid;
+        uint64_t total_bytes;
+        uint64_t bytes_used;
+        uint64_t root_dir_objectid;
+        uint64_t num_devices;
+        uint32_t sectorsize;
+        uint32_t nodesize;
+        uint32_t leafsize;
+        uint32_t stripesize;
+        uint32_t sys_chunk_array_size;
+        uint64_t chunk_root_generation;
+        uint64_t compat_flags;
+        uint64_t compat_ro_flags;
+        uint64_t incompat_flags;
+        uint16_t csum_type;
+        uint8_t root_level;
+        uint8_t chunk_root_level;
+        uint8_t log_root_level;
+        struct btrfs_dev_item {
+                uint64_t devid;
+                uint64_t total_bytes;
+                uint64_t bytes_used;
+                uint32_t io_align;
+                uint32_t io_width;
+                uint32_t sector_size;
+                uint64_t type;
+                uint64_t generation;
+                uint64_t start_offset;
+                uint32_t dev_group;
+                uint8_t seek_speed;
+                uint8_t bandwidth;
+                uint8_t uuid[16];
+                uint8_t fsid[16];
+        } __attribute__ ((__packed__)) dev_item;
+        uint8_t label[256];
+} __attribute__ ((__packed__));
+
+#define BTRFS_IOCTL_MAGIC 0x94
+#define BTRFS_VOL_NAME_MAX 255
+#define BTRFS_PATH_NAME_MAX 4087
+
+struct btrfs_ioctl_vol_args {
+	__s64 fd;
+	char name[BTRFS_PATH_NAME_MAX + 1];
+};
+
+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;
+} __attribute__((may_alias));
+
+#define BTRFS_DEVICE_PATH_NAME_MAX 1024
+struct btrfs_ioctl_dev_info_args {
+	__u64 devid;				/* in/out */
+	__u8 uuid[BTRFS_UUID_SIZE];		/* in/out */
+	__u64 bytes_used;			/* out */
+	__u64 total_bytes;			/* out */
+	__u64 unused[379];			/* pad to 4k */
+	__u8 path[BTRFS_DEVICE_PATH_NAME_MAX];	/* out */
+};
+
+struct btrfs_ioctl_fs_info_args {
+	__u64 max_id;				/* out */
+	__u64 num_devices;			/* out */
+	__u8 fsid[BTRFS_FSID_SIZE];		/* out */
+	__u64 reserved[124];			/* pad to 1k */
+};
+
+#define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
+/*
+ * the buf is an array of search headers where
+ * each header is followed by the actual item
+ * the type field is expanded to 32 bits for alignment
+ */
+struct btrfs_ioctl_search_args {
+	struct btrfs_ioctl_search_key key;
+	char buf[BTRFS_SEARCH_ARGS_BUFSIZE];
+};
+
+#define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \
+                                   struct btrfs_ioctl_search_args)
+#define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
+				 struct btrfs_ioctl_dev_info_args)
+#define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
+			       struct btrfs_ioctl_fs_info_args)
+
+#endif