af32bb9c4f
This update splits old MTP code and new MTP code from Google into two trees, legacy and ffs. Depending on the SDK level, the build system will select the correct version. The reason for separating the versions out are due to older android trees not supporting the updated MTP code from Google. Most MTP code is from Google, with additions needed from implementing the Java functions in C++ for TWRP and FFS. We assume if you are in android-9.0 or above, your kernel has support for FFS over MTP. Verify that your init.rc is mounting the MTP FFS driver to the proper location. Change-Id: I4b107b239bd9bc5699527f9c8c77d9079f264a7e
126 lines
3.1 KiB
C++
126 lines
3.1 KiB
C++
/*
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* Copyright (C) 2014 TeamWin - bigbiff and Dees_Troy mtp database conversion to C++
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <string>
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#include <fcntl.h>
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#include <sys/wait.h>
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#include <pthread.h>
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#include <utils/Errors.h>
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#include <utils/threads.h>
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#include "MtpTypes.h"
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#include "MtpPacket.h"
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#include "MtpDataPacket.h"
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#include "MtpDatabase.h"
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#include "MtpRequestPacket.h"
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#include "MtpResponsePacket.h"
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#include "mtp_MtpDatabase.hpp"
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#include "mtp_MtpServer.hpp"
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#include "twrpMtp.hpp"
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#include "MtpDebug.h"
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#ifdef TWRPMTP
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static void usage(std::string prg) {
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printf("Usage: %s <OPTIONS>\n", prg.c_str());
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printf("Options:\n");
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printf("\t-h, --help\t\tShow Usage\n");
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printf("\t-s1, --storage1 /path/to/dir\t\tDestination to first storage directory\n");
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printf("\t-s2, --storage2 /path/to/dir\t\tDestination to first storage directory\n");
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printf("\t-sN, --storageN /path/to/dir\t\tDestination to first storage directory\n");
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}
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int main(int argc, char* argv[]) {
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printf("argc: %d\n", argc);
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if (argc < 2) {
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usage(argv[0]);
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return 1;
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}
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std::vector <std::string> storages;
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for (int i = 1; i < argc; ++i) {
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std::string arg = argv[i];
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if ((arg == "-h") || (arg == "--help")) {
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usage(argv[0]);
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}
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else {
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storages.push_back(arg);
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}
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}
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printf("starting\n");
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twmtp_MtpServer* mtp = new twmtp_MtpServer();
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mtp->set_storages(storages);
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mtp->start();
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return 0;
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}
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#endif //def TWRPMTP
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twrpMtp::twrpMtp(int debug_enabled) {
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if (debug_enabled)
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MtpDebug::enableDebug();
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mtpstorages = new storages;
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mtp_read_pipe = -1;
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}
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int twrpMtp::start(void) {
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MTPI("Starting MTP\n");
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twmtp_MtpServer *mtp = new twmtp_MtpServer();
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mtp->set_storages(mtpstorages);
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mtp->set_device_info();
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mtp->set_read_pipe(mtp_read_pipe);
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mtp->start();
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return 0;
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}
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pthread_t twrpMtp::threadserver(void) {
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pthread_t thread;
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ThreadPtr mtpptr = &twrpMtp::start;
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PThreadPtr p = *(PThreadPtr*)&mtpptr;
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pthread_create(&thread, NULL, p, this);
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return thread;
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}
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pid_t twrpMtp::forkserver(int mtppipe[2]) {
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pid_t pid;
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if ((pid = fork()) == -1) {
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MTPE("MTP fork failed.\n");
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return 0;
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}
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if (pid == 0) {
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// Child process
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close(mtppipe[1]); // Child closes write side
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mtp_read_pipe = mtppipe[0];
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start();
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MTPD("MTP child process exited.\n");
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close(mtppipe[0]);
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_exit(0);
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} else {
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MTPD("MTP child PID: %d\n", pid);
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return pid;
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}
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return 0;
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}
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void twrpMtp::addStorage(std::string display, std::string path, int mtpid, uint64_t maxFileSize) {
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s = new storage;
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s->display = display;
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s->mount = path;
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s->mtpid = mtpid;
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s->maxFileSize = maxFileSize;
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MTPD("twrpMtp mtpid: %d\n", s->mtpid);
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mtpstorages->push_back(s);
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}
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