refactor fuse sideloading code

Split the adb-specific portions (fetching a block from the adb host
and closing the connections) out from the rest of the FUSE filesystem
code, so that we can reuse the fuse stuff for installing off sdcards
as well.

Change-Id: I0ba385fd35999c5f5cad27842bc82024a264dd14

1 files changed, 38 insertions, 0 deletions

diff --git a/fuse_sideload.h b/fuse_sideload.h
new file mode 100644
index 0000000..c0b16ef
--- /dev/null
+++ b/fuse_sideload.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __FUSE_SIDELOAD_H
+#define __FUSE_SIDELOAD_H
+
+// define the filenames created by the sideload FUSE filesystem
+#define FUSE_SIDELOAD_HOST_MOUNTPOINT "/sideload"
+#define FUSE_SIDELOAD_HOST_FILENAME "package.zip"
+#define FUSE_SIDELOAD_HOST_PATHNAME (FUSE_SIDELOAD_HOST_MOUNTPOINT "/" FUSE_SIDELOAD_HOST_FILENAME)
+#define FUSE_SIDELOAD_HOST_EXIT_FLAG "exit"
+#define FUSE_SIDELOAD_HOST_EXIT_PATHNAME (FUSE_SIDELOAD_HOST_MOUNTPOINT "/" FUSE_SIDELOAD_HOST_EXIT_FLAG)
+
+struct provider_vtab {
+    // read a block
+    int (*read_block)(void* cookie, uint32_t block, uint8_t* buffer, uint32_t fetch_size);
+
+    // close down
+    void (*close)(void* cookie);
+};
+
+int run_fuse_sideload(struct provider_vtab* vtab, void* cookie,
+                      uint64_t file_size, uint32_t block_size);
+
+#endif