1 /* 2 * Copyright (C) 2007 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 <errno.h> 18 #include <inttypes.h> 19 #include <stdio.h> 20 #include <stdlib.h> 21 #include <string.h> 22 #include <unistd.h> 23 24 #include "sysdeps.h" 25 26 #include "adb.h" 27 #include "fdevent.h" 28 #include "fuse_adb_provider.h" 29 30 typedef struct stinfo stinfo; 31 32 struct stinfo { 33 void (*func)(int fd, void *cookie); 34 int fd; 35 void *cookie; 36 }; 37 38 void service_bootstrap_func(void* x) { 39 stinfo* sti = reinterpret_cast<stinfo*>(x); 40 sti->func(sti->fd, sti->cookie); 41 free(sti); 42 } 43 44 static void sideload_host_service(int sfd, void* data) { 45 char* args = reinterpret_cast<char*>(data); 46 int file_size; 47 int block_size; 48 if (sscanf(args, "%d:%d", &file_size, &block_size) != 2) { 49 printf("bad sideload-host arguments: %s\n", args); 50 exit(1); 51 } 52 free(args); 53 54 printf("sideload-host file size %d block size %d\n", file_size, block_size); 55 56 int result = run_adb_fuse(sfd, file_size, block_size); 57 58 printf("sideload_host finished\n"); 59 sleep(1); 60 exit(result == 0 ? 0 : 1); 61 } 62 63 static int create_service_thread(void (*func)(int, void *), void *cookie) { 64 int s[2]; 65 if(adb_socketpair(s)) { 66 printf("cannot create service socket pair\n"); 67 return -1; 68 } 69 70 stinfo* sti = reinterpret_cast<stinfo*>(malloc(sizeof(stinfo))); 71 if(sti == 0) fatal("cannot allocate stinfo"); 72 sti->func = func; 73 sti->cookie = cookie; 74 sti->fd = s[1]; 75 76 if (!adb_thread_create(service_bootstrap_func, sti)) { 77 free(sti); 78 adb_close(s[0]); 79 adb_close(s[1]); 80 printf("cannot create service thread\n"); 81 return -1; 82 } 83 84 VLOG(SERVICES) << "service thread started, " << s[0] << ":" << s[1]; 85 return s[0]; 86 } 87 88 int service_to_fd(const char* name, const atransport* transport) { 89 int ret = -1; 90 91 if (!strncmp(name, "sideload:", 9)) { 92 // this exit status causes recovery to print a special error 93 // message saying to use a newer adb (that supports 94 // sideload-host). 95 exit(3); 96 } else if (!strncmp(name, "sideload-host:", 14)) { 97 char* arg = strdup(name + 14); 98 ret = create_service_thread(sideload_host_service, arg); 99 } 100 if (ret >= 0) { 101 close_on_exec(ret); 102 } 103 return ret; 104 } 105
