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authorJosh Gao2018-01-02 14:01:43 -0600
committerJosh Gao2018-02-28 17:29:50 -0600
commit2776845aa534da492e90c9b3c7de094d6212c0f1 (patch)
treef733098713248168e0c26c3e984c266a6a7aa3e5 /diagnose_usb
parente2176118f4e7a9e2470310f978a40dbdcc904fb3 (diff)
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adb: switch over to Android.bp.
Rearrange some files while we're doing this. Bug: http://b/71721338 Test: manually ran adb on windows Change-Id: Ie47bda82279e4b9521505ad0353bf9ef649fc7d7
Diffstat (limited to 'diagnose_usb')
-rw-r--r--diagnose_usb/Android.bp13
-rw-r--r--diagnose_usb/diagnose_usb.cpp86
-rw-r--r--diagnose_usb/include/diagnose_usb.h27
3 files changed, 126 insertions, 0 deletions
diff --git a/diagnose_usb/Android.bp b/diagnose_usb/Android.bp
new file mode 100644
index 000000000..a7ecf3737
--- /dev/null
+++ b/diagnose_usb/Android.bp
@@ -0,0 +1,13 @@
1cc_library_static {
2 name: "libdiagnose_usb",
3 cflags: ["-Wall", "-Wextra", "-Werror"],
4 host_supported: true,
5 target: {
6 windows: {
7 enabled: true,
8 },
9 },
10 srcs: ["diagnose_usb.cpp"],
11 export_include_dirs: ["include"],
12 static_libs: ["libbase"],
13}
diff --git a/diagnose_usb/diagnose_usb.cpp b/diagnose_usb/diagnose_usb.cpp
new file mode 100644
index 000000000..5695ecec5
--- /dev/null
+++ b/diagnose_usb/diagnose_usb.cpp
@@ -0,0 +1,86 @@
1/*
2 * Copyright (C) 2015 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 "diagnose_usb.h"
18
19#include <errno.h>
20#include <unistd.h>
21
22#include <string>
23
24#include <android-base/stringprintf.h>
25
26#if defined(__linux__)
27#include <grp.h>
28#include <pwd.h>
29#endif
30
31static const char kPermissionsHelpUrl[] = "http://developer.android.com/tools/device.html";
32
33// Returns a message describing any potential problems we find with udev, or an empty string if we
34// can't find plugdev information (i.e. udev is not installed).
35static std::string GetUdevProblem() {
36#if defined(__linux__) && !defined(__BIONIC__)
37 errno = 0;
38 group* plugdev_group = getgrnam("plugdev");
39
40 if (plugdev_group == nullptr) {
41 if (errno != 0) {
42 perror("failed to read plugdev group info");
43 }
44 // We can't give any generally useful advice here, just let the caller print the help URL.
45 return "";
46 }
47
48 // getgroups(2) indicates that the GNU group_member(3) may not check the egid so we check it
49 // additionally just to be sure.
50 if (group_member(plugdev_group->gr_gid) || getegid() == plugdev_group->gr_gid) {
51 // The user is in plugdev so the problem is likely with the udev rules.
52 return "user in plugdev group; are your udev rules wrong?";
53 }
54 passwd* pwd = getpwuid(getuid());
55 return android::base::StringPrintf("user %s is not in the plugdev group",
56 pwd ? pwd->pw_name : "?");
57#else
58 return "";
59#endif
60}
61
62// Short help text must be a single line, and will look something like:
63//
64// no permissions (reason); see [URL]
65std::string UsbNoPermissionsShortHelpText() {
66 std::string help_text = "no permissions";
67
68 std::string problem(GetUdevProblem());
69 if (!problem.empty()) help_text += " (" + problem + ")";
70
71 return android::base::StringPrintf("%s; see [%s]", help_text.c_str(), kPermissionsHelpUrl);
72}
73
74// Long help text can span multiple lines but doesn't currently provide more detailed information:
75//
76// insufficient permissions for device: reason
77// See [URL] for more information
78std::string UsbNoPermissionsLongHelpText() {
79 std::string header = "insufficient permissions for device";
80
81 std::string problem(GetUdevProblem());
82 if (!problem.empty()) header += ": " + problem;
83
84 return android::base::StringPrintf("%s\nSee [%s] for more information", header.c_str(),
85 kPermissionsHelpUrl);
86}
diff --git a/diagnose_usb/include/diagnose_usb.h b/diagnose_usb/include/diagnose_usb.h
new file mode 100644
index 000000000..325b2e3b6
--- /dev/null
+++ b/diagnose_usb/include/diagnose_usb.h
@@ -0,0 +1,27 @@
1/*
2 * Copyright (C) 2015 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#ifndef __DIAGNOSE_LINUX_USB_H
18#define __DIAGNOSE_LINUX_USB_H
19
20#include <string>
21
22// USB permission error help text. The short version will be one line, long may be multi-line.
23// Returns a string message to print, or an empty string if no problems could be found.
24std::string UsbNoPermissionsShortHelpText();
25std::string UsbNoPermissionsLongHelpText();
26
27#endif