recovery: bu: Implement backup/restore

Change-Id: I9e684868ce15aaaed3a40338dadc20b003b50ade

1 files changed, 54 insertions, 0 deletions

diff --git a/bu.h b/bu.h
new file mode 100644
index 0000000..15ab745
--- /dev/null
+++ b/bu.h
@@ -0,0 +1,54 @@
+#include <utils/String8.h>
+
+#include <lib/libtar.h>
+#include <zlib.h>
+
+extern "C" {
+#include <openssl/sha.h>
+#include <openssl/md5.h>
+#ifndef MD5_DIGEST_STRING_LENGTH
+#define MD5_DIGEST_STRING_LENGTH (MD5_DIGEST_LENGTH*2+1)
+#endif
+#ifndef SHA_DIGEST_STRING_LENGTH
+#define SHA_DIGEST_STRING_LENGTH (SHA_DIGEST_LENGTH*2+1)
+#endif
+}
+
+#define HASH_MAX_LENGTH SHA_DIGEST_LENGTH
+#define HASH_MAX_STRING_LENGTH SHA_DIGEST_STRING_LENGTH
+
+#define PROP_LINE_LEN (PROPERTY_KEY_MAX+1+PROPERTY_VALUE_MAX+1+1)
+
+extern int adb_ifd;
+extern int adb_ofd;
+extern TAR* tar;
+extern gzFile gzf;
+
+extern char* hash_name;
+extern size_t hash_datalen;
+extern SHA_CTX sha_ctx;
+extern MD5_CTX md5_ctx;
+
+struct partspec {
+    char*       name;
+    char*       path;
+    Volume*     vol;
+    uint64_t    size;
+    uint64_t    used;
+    uint64_t    off;
+};
+#define MAX_PART 8
+
+extern void logmsg(const char* fmt, ...);
+
+extern int part_add(const char* name);
+extern partspec* part_get(int i);
+extern partspec* part_find(const char* name);
+extern void part_set(partspec* part);
+
+extern int update_progress(uint64_t off);
+
+extern int create_tar(int fd, const char* compress, const char* mode);
+
+extern int do_backup(int argc, char** argv);
+extern int do_restore(int argc, char** argv);