1 /*
2 * Copyright (C) 2016 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 #define LOG_TAG "DropBoxManager"
18
19 #include <android/os/DropBoxManager.h>
20
21 #include <binder/IServiceManager.h>
22 #include <com/android/internal/os/IDropBoxManagerService.h>
23 #include <cutils/log.h>
24
25 #include <sys/types.h>
26 #include <sys/stat.h>
27 #include <fcntl.h>
28
29 namespace android {
30 namespace os {
31
32 using namespace ::com::android::internal::os;
33
Entry()34 DropBoxManager::Entry::Entry()
35 :mTag(),
36 mTimeMillis(0),
37 mFlags(IS_EMPTY),
38 mData(),
39 mFd()
40 {
41 mFlags = IS_EMPTY;
42 }
43
Entry(const String16 & tag,int32_t flags)44 DropBoxManager::Entry::Entry(const String16& tag, int32_t flags)
45 :mTag(tag),
46 mTimeMillis(0),
47 mFlags(flags),
48 mData(),
49 mFd()
50 {
51 }
52
Entry(const String16 & tag,int32_t flags,int fd)53 DropBoxManager::Entry::Entry(const String16& tag, int32_t flags, int fd)
54 :mTag(tag),
55 mTimeMillis(0),
56 mFlags(flags),
57 mData(),
58 mFd(fd)
59 {
60 }
61
~Entry()62 DropBoxManager::Entry::~Entry()
63 {
64 }
65
66 status_t
writeToParcel(Parcel * out) const67 DropBoxManager::Entry::writeToParcel(Parcel* out) const
68 {
69 status_t err;
70
71 err = out->writeString16(mTag);
72 if (err != NO_ERROR) {
73 return err;
74 }
75
76 err = out->writeInt64(mTimeMillis);
77 if (err != NO_ERROR) {
78 return err;
79 }
80
81 if (mFd.get() != -1) {
82 err = out->writeInt32(mFlags & ~HAS_BYTE_ARRAY); // Clear bit just to be safe
83 if (err != NO_ERROR) {
84 return err;
85 }
86 ALOGD("writing fd %d\n", mFd.get());
87 err = out->writeParcelFileDescriptor(mFd);
88 if (err != NO_ERROR) {
89 return err;
90 }
91 } else {
92 err = out->writeInt32(mFlags | HAS_BYTE_ARRAY);
93 if (err != NO_ERROR) {
94 return err;
95 }
96 err = out->writeByteVector(mData);
97 if (err != NO_ERROR) {
98 return err;
99 }
100 }
101 return NO_ERROR;
102 }
103
104 status_t
readFromParcel(const Parcel * in)105 DropBoxManager::Entry::readFromParcel(const Parcel* in)
106 {
107 status_t err;
108
109 err = in->readString16(&mTag);
110 if (err != NO_ERROR) {
111 return err;
112 }
113
114 err = in->readInt64(&mTimeMillis);
115 if (err != NO_ERROR) {
116 return err;
117 }
118
119 err = in->readInt32(&mFlags);
120 if (err != NO_ERROR) {
121 return err;
122 }
123
124 if ((mFlags & HAS_BYTE_ARRAY) != 0) {
125 err = in->readByteVector(&mData);
126 if (err != NO_ERROR) {
127 return err;
128 }
129 mFlags &= ~HAS_BYTE_ARRAY;
130 } else {
131 int fd;
132 fd = in->readParcelFileDescriptor();
133 if (fd == -1) {
134 return EBADF;
135 }
136 fd = dup(fd);
137 if (fd == -1) {
138 return errno;
139 }
140 mFd.reset(fd);
141 }
142
143 return NO_ERROR;
144 }
145
146
DropBoxManager()147 DropBoxManager::DropBoxManager()
148 {
149 }
150
~DropBoxManager()151 DropBoxManager::~DropBoxManager()
152 {
153 }
154
155 Status
addText(const String16 & tag,const string & text)156 DropBoxManager::addText(const String16& tag, const string& text)
157 {
158 Entry entry(tag, IS_TEXT);
159 entry.mData.assign(text.c_str(), text.c_str() + text.size());
160 return add(entry);
161 }
162
163 Status
addData(const String16 & tag,uint8_t const * data,size_t size,int flags)164 DropBoxManager::addData(const String16& tag, uint8_t const* data,
165 size_t size, int flags)
166 {
167 Entry entry(tag, flags);
168 entry.mData.assign(data, data+size);
169 return add(entry);
170 }
171
172 Status
addFile(const String16 & tag,const string & filename,int flags)173 DropBoxManager::addFile(const String16& tag, const string& filename, int flags)
174 {
175 int fd = open(filename.c_str(), O_RDONLY);
176 if (fd == -1) {
177 string message("addFile can't open file: ");
178 message += filename;
179 ALOGW("DropboxManager: %s", message.c_str());
180 return Status::fromExceptionCode(Status::EX_ILLEGAL_STATE, message.c_str());
181 }
182
183 Entry entry(tag, flags, fd);
184 return add(entry);
185 }
186
187 Status
add(const Entry & entry)188 DropBoxManager::add(const Entry& entry)
189 {
190 sp<IDropBoxManagerService> service = interface_cast<IDropBoxManagerService>(
191 defaultServiceManager()->getService(android::String16("dropbox")));
192 if (service == NULL) {
193 return Status::fromExceptionCode(Status::EX_NULL_POINTER, "can't find dropbox service");
194 }
195 return service->add(entry);
196 }
197
198 }} // namespace android::os
199
200