1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "fuse_adb_provider.h" 18 19 #include <errno.h> 20 #include <stdio.h> 21 #include <stdlib.h> 22 #include <string.h> 23 24 #include <functional> 25 26 #include "adb.h" 27 #include "adb_io.h" 28 #include "fuse_sideload.h" 29 30 int read_block_adb(const adb_data& ad, uint32_t block, uint8_t* buffer, uint32_t fetch_size) { 31 if (!WriteFdFmt(ad.sfd, "%08u", block)) { 32 fprintf(stderr, "failed to write to adb host: %s\n", strerror(errno)); 33 return -EIO; 34 } 35 36 if (!ReadFdExactly(ad.sfd, buffer, fetch_size)) { 37 fprintf(stderr, "failed to read from adb host: %s\n", strerror(errno)); 38 return -EIO; 39 } 40 41 return 0; 42 } 43 44 int run_adb_fuse(int sfd, uint64_t file_size, uint32_t block_size) { 45 adb_data ad; 46 ad.sfd = sfd; 47 ad.file_size = file_size; 48 ad.block_size = block_size; 49 50 provider_vtab vtab; 51 vtab.read_block = std::bind(read_block_adb, ad, std::placeholders::_1, std::placeholders::_2, 52 std::placeholders::_3); 53 vtab.close = [&ad]() { WriteFdExactly(ad.sfd, "DONEDONE"); }; 54 55 return run_fuse_sideload(vtab, file_size, block_size); 56 } 57
