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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
Elliott Hughes59bf0da2016-06-15 15:14:04 -070036static void set_usb_driver(RecoveryUI* ui, bool enabled) {
Doug Zongker9270a202012-01-09 15:16:13 -080037 int fd = open("/sys/class/android_usb/android0/enable", O_WRONLY);
38 if (fd < 0) {
39 ui->Print("failed to open driver control: %s\n", strerror(errno));
40 return;
41 }
Elliott Hughes7bad7c42015-04-28 17:24:24 -070042 if (TEMP_FAILURE_RETRY(write(fd, enabled ? "1" : "0", 1)) == -1) {
Doug Zongker9270a202012-01-09 15:16:13 -080043 ui->Print("failed to set driver control: %s\n", strerror(errno));
44 }
45 if (close(fd) < 0) {
46 ui->Print("failed to close driver control: %s\n", strerror(errno));
47 }
48}
49
Elliott Hughes59bf0da2016-06-15 15:14:04 -070050static void stop_adbd(RecoveryUI* ui) {
51 ui->Print("Stopping adbd...\n");
Doug Zongker9270a202012-01-09 15:16:13 -080052 property_set("ctl.stop", "adbd");
Elliott Hughes59bf0da2016-06-15 15:14:04 -070053 set_usb_driver(ui, false);
Doug Zongker9270a202012-01-09 15:16:13 -080054}
55
Elliott Hughes59bf0da2016-06-15 15:14:04 -070056static void maybe_restart_adbd(RecoveryUI* ui) {
Elliott Hughesf14af802015-02-10 14:46:14 -080057 if (is_ro_debuggable()) {
Doug Zongker9270a202012-01-09 15:16:13 -080058 ui->Print("Restarting adbd...\n");
Elliott Hughes59bf0da2016-06-15 15:14:04 -070059 set_usb_driver(ui, true);
Doug Zongker9270a202012-01-09 15:16:13 -080060 property_set("ctl.start", "adbd");
61 }
62}
63
Doug Zongker075ad802014-06-26 15:35:51 -070064// How long (in seconds) we wait for the host to start sending us a
65// package, before timing out.
66#define ADB_INSTALL_TIMEOUT 300
67
Elliott Hughes59bf0da2016-06-15 15:14:04 -070068int apply_from_adb(RecoveryUI* ui, bool* wipe_cache, const char* install_file) {
Tao Bao682c34b2015-04-07 17:16:35 -070069 modified_flash = true;
70
Elliott Hughes59bf0da2016-06-15 15:14:04 -070071 stop_adbd(ui);
72 set_usb_driver(ui, true);
Doug Zongker9270a202012-01-09 15:16:13 -080073
74 ui->Print("\n\nNow send the package you want to apply\n"
75 "to the device with \"adb sideload <filename>\"...\n");
76
77 pid_t child;
78 if ((child = fork()) == 0) {
79 execl("/sbin/recovery", "recovery", "--adbd", NULL);
80 _exit(-1);
81 }
Doug Zongker075ad802014-06-26 15:35:51 -070082
Doug Zongker18a78e02014-07-10 07:31:46 -070083 // FUSE_SIDELOAD_HOST_PATHNAME will start to exist once the host
Doug Zongker075ad802014-06-26 15:35:51 -070084 // connects and starts serving a package. Poll for its
85 // appearance. (Note that inotify doesn't work with FUSE.)
Tao Bao80e46e02015-06-03 10:49:29 -070086 int result = INSTALL_ERROR;
Doug Zongker9270a202012-01-09 15:16:13 -080087 int status;
Doug Zongker075ad802014-06-26 15:35:51 -070088 bool waited = false;
89 struct stat st;
90 for (int i = 0; i < ADB_INSTALL_TIMEOUT; ++i) {
91 if (waitpid(child, &status, WNOHANG) != 0) {
92 result = INSTALL_ERROR;
93 waited = true;
94 break;
95 }
96
Doug Zongker18a78e02014-07-10 07:31:46 -070097 if (stat(FUSE_SIDELOAD_HOST_PATHNAME, &st) != 0) {
Doug Zongker075ad802014-06-26 15:35:51 -070098 if (errno == ENOENT && i < ADB_INSTALL_TIMEOUT-1) {
99 sleep(1);
100 continue;
101 } else {
Elliott Hughes018ed312015-04-08 16:51:36 -0700102 ui->Print("\nTimed out waiting for package.\n\n");
Doug Zongker075ad802014-06-26 15:35:51 -0700103 result = INSTALL_ERROR;
104 kill(child, SIGKILL);
105 break;
106 }
107 }
Tianjie Xu16255832016-04-30 11:49:59 -0700108 result = install_package(FUSE_SIDELOAD_HOST_PATHNAME, wipe_cache, install_file, false, 0);
Doug Zongker075ad802014-06-26 15:35:51 -0700109 break;
110 }
111
112 if (!waited) {
113 // Calling stat() on this magic filename signals the minadbd
114 // subprocess to shut down.
Doug Zongker18a78e02014-07-10 07:31:46 -0700115 stat(FUSE_SIDELOAD_HOST_EXIT_PATHNAME, &st);
Doug Zongker075ad802014-06-26 15:35:51 -0700116
117 // TODO(dougz): there should be a way to cancel waiting for a
118 // package (by pushing some button combo on the device). For now
119 // you just have to 'adb sideload' a file that's not a valid
120 // package, like "/dev/null".
121 waitpid(child, &status, 0);
122 }
123
Doug Zongker9270a202012-01-09 15:16:13 -0800124 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
Doug Zongker075ad802014-06-26 15:35:51 -0700125 if (WEXITSTATUS(status) == 3) {
126 ui->Print("\nYou need adb 1.0.32 or newer to sideload\nto this device.\n\n");
127 } else if (!WIFSIGNALED(status)) {
128 ui->Print("\n(adbd status %d)\n", WEXITSTATUS(status));
129 }
Doug Zongker9270a202012-01-09 15:16:13 -0800130 }
131
Elliott Hughes59bf0da2016-06-15 15:14:04 -0700132 set_usb_driver(ui, false);
133 maybe_restart_adbd(ui);
Doug Zongker9270a202012-01-09 15:16:13 -0800134
Doug Zongker075ad802014-06-26 15:35:51 -0700135 return result;
Doug Zongker9270a202012-01-09 15:16:13 -0800136}