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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>
Dees_Troy2673cec2013-04-02 20:22:16 +000027#include <stdio.h>
Doug Zongker9270a202012-01-09 15:16:13 -080028
29#include "ui.h"
30#include "cutils/properties.h"
Doug Zongker9270a202012-01-09 15:16:13 -080031#include "adb_install.h"
Doug Zongker18a78e02014-07-10 07:31:46 -070032#include "minadbd/fuse_adb_provider.h"
33#include "fuse_sideload.h"
Ethan Yonkerf1179622016-08-25 15:32:21 -050034#ifdef USE_OLD_VERIFIER
Ethan Yonker4bf259f2016-08-29 11:50:34 -050035#include "verifier24/verifier.h"
Ethan Yonkerf1179622016-08-25 15:32:21 -050036#else
Ethan Yonker34ae4832016-08-24 15:32:18 -050037#include "verifier.h"
Ethan Yonkerf1179622016-08-25 15:32:21 -050038#endif
Doug Zongker9270a202012-01-09 15:16:13 -080039
40static RecoveryUI* ui = NULL;
41
Ethan Yonker24813422014-11-07 17:19:07 -060042void
Doug Zongker9270a202012-01-09 15:16:13 -080043set_usb_driver(bool enabled) {
44 int fd = open("/sys/class/android_usb/android0/enable", O_WRONLY);
45 if (fd < 0) {
Dees_Troye00c83a2012-09-21 10:00:52 -040046/* These error messages show when built in older Android branches (e.g. Gingerbread)
47 It's not a critical error so we're disabling the error messages.
Doug Zongker9270a202012-01-09 15:16:13 -080048 ui->Print("failed to open driver control: %s\n", strerror(errno));
Dees_Troye00c83a2012-09-21 10:00:52 -040049*/
Dees_Troy2673cec2013-04-02 20:22:16 +000050 printf("failed to open driver control: %s\n", strerror(errno));
Doug Zongker9270a202012-01-09 15:16:13 -080051 return;
52 }
Ethan Yonkerc798c9c2015-10-09 11:15:26 -050053
Elliott Hughes2f5feed2015-04-28 17:24:24 -070054 if (TEMP_FAILURE_RETRY(write(fd, enabled ? "1" : "0", 1)) == -1) {
Dees_Troye00c83a2012-09-21 10:00:52 -040055/*
Doug Zongker9270a202012-01-09 15:16:13 -080056 ui->Print("failed to set driver control: %s\n", strerror(errno));
Dees_Troye00c83a2012-09-21 10:00:52 -040057*/
Dees_Troy2673cec2013-04-02 20:22:16 +000058 printf("failed to set driver control: %s\n", strerror(errno));
Doug Zongker9270a202012-01-09 15:16:13 -080059 }
60 if (close(fd) < 0) {
Dees_Troye00c83a2012-09-21 10:00:52 -040061/*
Doug Zongker9270a202012-01-09 15:16:13 -080062 ui->Print("failed to close driver control: %s\n", strerror(errno));
Dees_Troye00c83a2012-09-21 10:00:52 -040063*/
Dees_Troy2673cec2013-04-02 20:22:16 +000064 printf("failed to close driver control: %s\n", strerror(errno));
Doug Zongker9270a202012-01-09 15:16:13 -080065 }
66}
67
68static void
69stop_adbd() {
70 property_set("ctl.stop", "adbd");
71 set_usb_driver(false);
72}
73
Ethan Yonkerc798c9c2015-10-09 11:15:26 -050074bool is_ro_debuggable() {
75 char value[PROPERTY_VALUE_MAX+1];
76 return (property_get("ro.debuggable", value, NULL) == 1 && value[0] == '1');
77}
Doug Zongker9270a202012-01-09 15:16:13 -080078
Ethan Yonker24813422014-11-07 17:19:07 -060079void
Doug Zongker9270a202012-01-09 15:16:13 -080080maybe_restart_adbd() {
81 char value[PROPERTY_VALUE_MAX+1];
Elliott Hughesf14af802015-02-10 14:46:14 -080082 if (is_ro_debuggable()) {
Dees_Troy2673cec2013-04-02 20:22:16 +000083 printf("Restarting adbd...\n");
Doug Zongker9270a202012-01-09 15:16:13 -080084 set_usb_driver(true);
85 property_set("ctl.start", "adbd");
86 }
87}
88
Doug Zongker075ad802014-06-26 15:35:51 -070089// How long (in seconds) we wait for the host to start sending us a
90// package, before timing out.
91#define ADB_INSTALL_TIMEOUT 300
92
Doug Zongker9270a202012-01-09 15:16:13 -080093int
thatcc8ddca2015-01-03 01:59:36 +010094apply_from_adb(const char* install_file, pid_t* child_pid) {
Doug Zongker9270a202012-01-09 15:16:13 -080095
96 stop_adbd();
97 set_usb_driver(true);
Dees_Troy2673cec2013-04-02 20:22:16 +000098/*
Doug Zongker9270a202012-01-09 15:16:13 -080099 ui->Print("\n\nNow send the package you want to apply\n"
100 "to the device with \"adb sideload <filename>\"...\n");
Dees_Troy2673cec2013-04-02 20:22:16 +0000101*/
Doug Zongker9270a202012-01-09 15:16:13 -0800102 pid_t child;
103 if ((child = fork()) == 0) {
Dees_Troy9a4b5692012-09-19 15:09:45 -0400104 execl("/sbin/recovery", "recovery", "--adbd", install_file, NULL);
Doug Zongker9270a202012-01-09 15:16:13 -0800105 _exit(-1);
106 }
Doug Zongker075ad802014-06-26 15:35:51 -0700107
thatcc8ddca2015-01-03 01:59:36 +0100108 *child_pid = child;
109 // caller can now kill the child thread from another thread
Ethan Yonkera1674162014-11-06 08:35:10 -0600110
Doug Zongker18a78e02014-07-10 07:31:46 -0700111 // FUSE_SIDELOAD_HOST_PATHNAME will start to exist once the host
Doug Zongker075ad802014-06-26 15:35:51 -0700112 // connects and starts serving a package. Poll for its
113 // appearance. (Note that inotify doesn't work with FUSE.)
Tao Bao80e46e02015-06-03 10:49:29 -0700114 int result = INSTALL_ERROR;
Doug Zongker9270a202012-01-09 15:16:13 -0800115 int status;
Doug Zongker075ad802014-06-26 15:35:51 -0700116 bool waited = false;
117 struct stat st;
118 for (int i = 0; i < ADB_INSTALL_TIMEOUT; ++i) {
119 if (waitpid(child, &status, WNOHANG) != 0) {
Ethan Yonker26860092014-11-06 09:49:25 -0600120 result = -1;
Doug Zongker075ad802014-06-26 15:35:51 -0700121 waited = true;
122 break;
123 }
124
Doug Zongker18a78e02014-07-10 07:31:46 -0700125 if (stat(FUSE_SIDELOAD_HOST_PATHNAME, &st) != 0) {
Doug Zongker075ad802014-06-26 15:35:51 -0700126 if (errno == ENOENT && i < ADB_INSTALL_TIMEOUT-1) {
127 sleep(1);
128 continue;
129 } else {
thatcc8ddca2015-01-03 01:59:36 +0100130 printf("\nTimed out waiting for package: %s\n\n", strerror(errno));
Ethan Yonker26860092014-11-06 09:49:25 -0600131 result = -1;
Doug Zongker075ad802014-06-26 15:35:51 -0700132 kill(child, SIGKILL);
133 break;
134 }
135 }
Ethan Yonker24813422014-11-07 17:19:07 -0600136 // Install is handled elsewhere in TWRP
thatcc8ddca2015-01-03 01:59:36 +0100137 //install_package(FUSE_SIDELOAD_HOST_PATHNAME, wipe_cache, install_file, false);
138 return 0;
Doug Zongker075ad802014-06-26 15:35:51 -0700139 }
140
thatcc8ddca2015-01-03 01:59:36 +0100141 // if we got here, something failed
142 *child_pid = 0;
143
144 if (!waited) {
Doug Zongker075ad802014-06-26 15:35:51 -0700145 // Calling stat() on this magic filename signals the minadbd
146 // subprocess to shut down.
Doug Zongker18a78e02014-07-10 07:31:46 -0700147 stat(FUSE_SIDELOAD_HOST_EXIT_PATHNAME, &st);
Doug Zongker075ad802014-06-26 15:35:51 -0700148
149 // TODO(dougz): there should be a way to cancel waiting for a
150 // package (by pushing some button combo on the device). For now
151 // you just have to 'adb sideload' a file that's not a valid
152 // package, like "/dev/null".
153 waitpid(child, &status, 0);
thatcc8ddca2015-01-03 01:59:36 +0100154 }
Doug Zongker075ad802014-06-26 15:35:51 -0700155
thatcc8ddca2015-01-03 01:59:36 +0100156 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
157 if (WEXITSTATUS(status) == 3) {
158 printf("\nYou need adb 1.0.32 or newer to sideload\nto this device.\n\n");
159 result = -2;
160 } else if (!WIFSIGNALED(status)) {
161 printf("status %d\n", WEXITSTATUS(status));
Doug Zongker075ad802014-06-26 15:35:51 -0700162 }
thatcc8ddca2015-01-03 01:59:36 +0100163 }
Doug Zongker9270a202012-01-09 15:16:13 -0800164
thatcc8ddca2015-01-03 01:59:36 +0100165 set_usb_driver(false);
166 maybe_restart_adbd();
167
168 return result;
Doug Zongker9270a202012-01-09 15:16:13 -0800169}