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Doug Zongker9270a202012-01-09 15:16:13 -08001/*
2 * Copyright (C) 2012 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 <unistd.h>
18#include <dirent.h>
19#include <errno.h>
20#include <stdlib.h>
21#include <string.h>
22#include <sys/types.h>
23#include <sys/wait.h>
24#include <sys/stat.h>
25#include <signal.h>
26#include <fcntl.h>
27
28#include "ui.h"
29#include "cutils/properties.h"
30#include "install.h"
31#include "common.h"
32#include "adb_install.h"
Doug Zongker18a78e02014-07-10 07:31:46 -070033#include "minadbd/fuse_adb_provider.h"
34#include "fuse_sideload.h"
Doug Zongker9270a202012-01-09 15:16:13 -080035
36static RecoveryUI* ui = NULL;
37
38static void
39set_usb_driver(bool enabled) {
40 int fd = open("/sys/class/android_usb/android0/enable", O_WRONLY);
41 if (fd < 0) {
42 ui->Print("failed to open driver control: %s\n", strerror(errno));
43 return;
44 }
45 if (write(fd, enabled ? "1" : "0", 1) < 0) {
46 ui->Print("failed to set driver control: %s\n", strerror(errno));
47 }
48 if (close(fd) < 0) {
49 ui->Print("failed to close driver control: %s\n", strerror(errno));
50 }
51}
52
53static void
54stop_adbd() {
55 property_set("ctl.stop", "adbd");
56 set_usb_driver(false);
57}
58
59
60static void
61maybe_restart_adbd() {
Elliott Hughesf14af802015-02-10 14:46:14 -080062 if (is_ro_debuggable()) {
Doug Zongker9270a202012-01-09 15:16:13 -080063 ui->Print("Restarting adbd...\n");
64 set_usb_driver(true);
65 property_set("ctl.start", "adbd");
66 }
67}
68
Doug Zongker075ad802014-06-26 15:35:51 -070069// How long (in seconds) we wait for the host to start sending us a
70// package, before timing out.
71#define ADB_INSTALL_TIMEOUT 300
72
Doug Zongker9270a202012-01-09 15:16:13 -080073int
Tao Bao145d8612015-03-25 15:51:15 -070074apply_from_adb(RecoveryUI* ui_, bool* wipe_cache, const char* install_file) {
Tao Bao682c34b2015-04-07 17:16:35 -070075 modified_flash = true;
76
Doug Zongker9270a202012-01-09 15:16:13 -080077 ui = ui_;
78
79 stop_adbd();
80 set_usb_driver(true);
81
82 ui->Print("\n\nNow send the package you want to apply\n"
83 "to the device with \"adb sideload <filename>\"...\n");
84
85 pid_t child;
86 if ((child = fork()) == 0) {
87 execl("/sbin/recovery", "recovery", "--adbd", NULL);
88 _exit(-1);
89 }
Doug Zongker075ad802014-06-26 15:35:51 -070090
Doug Zongker18a78e02014-07-10 07:31:46 -070091 // FUSE_SIDELOAD_HOST_PATHNAME will start to exist once the host
Doug Zongker075ad802014-06-26 15:35:51 -070092 // connects and starts serving a package. Poll for its
93 // appearance. (Note that inotify doesn't work with FUSE.)
94 int result;
Doug Zongker9270a202012-01-09 15:16:13 -080095 int status;
Doug Zongker075ad802014-06-26 15:35:51 -070096 bool waited = false;
97 struct stat st;
98 for (int i = 0; i < ADB_INSTALL_TIMEOUT; ++i) {
99 if (waitpid(child, &status, WNOHANG) != 0) {
100 result = INSTALL_ERROR;
101 waited = true;
102 break;
103 }
104
Doug Zongker18a78e02014-07-10 07:31:46 -0700105 if (stat(FUSE_SIDELOAD_HOST_PATHNAME, &st) != 0) {
Doug Zongker075ad802014-06-26 15:35:51 -0700106 if (errno == ENOENT && i < ADB_INSTALL_TIMEOUT-1) {
107 sleep(1);
108 continue;
109 } else {
Elliott Hughes018ed312015-04-08 16:51:36 -0700110 ui->Print("\nTimed out waiting for package.\n\n");
Doug Zongker075ad802014-06-26 15:35:51 -0700111 result = INSTALL_ERROR;
112 kill(child, SIGKILL);
113 break;
114 }
115 }
Doug Zongker18a78e02014-07-10 07:31:46 -0700116 result = install_package(FUSE_SIDELOAD_HOST_PATHNAME, wipe_cache, install_file, false);
Doug Zongker075ad802014-06-26 15:35:51 -0700117 break;
118 }
119
120 if (!waited) {
121 // Calling stat() on this magic filename signals the minadbd
122 // subprocess to shut down.
Doug Zongker18a78e02014-07-10 07:31:46 -0700123 stat(FUSE_SIDELOAD_HOST_EXIT_PATHNAME, &st);
Doug Zongker075ad802014-06-26 15:35:51 -0700124
125 // TODO(dougz): there should be a way to cancel waiting for a
126 // package (by pushing some button combo on the device). For now
127 // you just have to 'adb sideload' a file that's not a valid
128 // package, like "/dev/null".
129 waitpid(child, &status, 0);
130 }
131
Doug Zongker9270a202012-01-09 15:16:13 -0800132 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
Doug Zongker075ad802014-06-26 15:35:51 -0700133 if (WEXITSTATUS(status) == 3) {
134 ui->Print("\nYou need adb 1.0.32 or newer to sideload\nto this device.\n\n");
135 } else if (!WIFSIGNALED(status)) {
136 ui->Print("\n(adbd status %d)\n", WEXITSTATUS(status));
137 }
Doug Zongker9270a202012-01-09 15:16:13 -0800138 }
139
140 set_usb_driver(false);
141 maybe_restart_adbd();
142
Doug Zongker075ad802014-06-26 15:35:51 -0700143 return result;
Doug Zongker9270a202012-01-09 15:16:13 -0800144}