opendir/readdir/releasedir
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d2cba6cfe6
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3b2de412c8
@ -268,45 +268,43 @@ int CryFuse::fsync(const path &path, int datasync, fuse_file_info *fileinfo) {
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}
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}
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//TODO
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int CryFuse::opendir(const path &path, fuse_file_info *fileinfo) {
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//printf("opendir(%s, _)\n", path.c_str());
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auto real_path = _device->RootDir() / path;
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DIR *dp = ::opendir(real_path.c_str());
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if (dp == nullptr) {
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return -errno;
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try {
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fileinfo->fh = _device->openDir(path);
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return 0;
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} catch(CryErrnoException &e) {
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return -e.getErrno();
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}
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fileinfo->fh = (intptr_t)dp;
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return 0;
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}
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//TODO
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int CryFuse::readdir(const path &path, void *buf, fuse_fill_dir_t filler, off_t offset, fuse_file_info *fileinfo) {
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UNUSED(path);
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//printf("readdir(%s, _, _, %zu, _)\n", path.c_str(), offset);
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UNUSED(offset);
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auto real_path = _device->RootDir() / path;
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DIR *dp = (DIR*)(uintptr_t)fileinfo->fh;
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struct dirent *de = ::readdir(dp);
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if (de == nullptr) {
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return -errno;
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}
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do {
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if (filler(buf, de->d_name, nullptr, 0) != 0) {
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return -ENOMEM;
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try {
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auto entries = _device->readDir(fileinfo->fh);
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for (const auto &entry : *entries) {
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//TODO Also give file attributes (third param of filler)
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if (filler(buf, entry.c_str(), nullptr, 0) != 0) {
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return -ENOMEM;
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}
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}
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} while ((de = ::readdir(dp)) != nullptr);
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return 0;
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return 0;
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} catch (CryErrnoException &e) {
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return -e.getErrno();
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}
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}
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//TODO
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int CryFuse::releasedir(const path &path, fuse_file_info *fileinfo) {
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//printf("releasedir(%s, _)\n", path.c_str());
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UNUSED(path);
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int retstat = closedir((DIR*)(uintptr_t)fileinfo->fh);
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return errcode_map(retstat);
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try {
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_device->closeDir(fileinfo->fh);
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return 0;
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} catch (CryErrnoException &e) {
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return -e.getErrno();
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}
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}
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//TODO
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@ -1,3 +1,3 @@
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add_library(cryfs_lib CryDevice.cpp CryDir.cpp CryErrnoException.cpp CryFile.cpp CryNode.cpp CryOpenFile.cpp CryOpenDir.cpp CryOpenFileList.cpp IdList.cpp)
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add_library(cryfs_lib CryDevice.cpp CryDir.cpp CryErrnoException.cpp CryFile.cpp CryNode.cpp CryOpenFile.cpp CryOpenDir.cpp CryOpenFileList.cpp CryOpenDirList.cpp IdList.cpp)
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target_link_libraries(cryfs_lib boost_filesystem)
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@ -9,13 +9,17 @@
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#include "CryErrnoException.h"
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#include "utils/pointer.h"
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#include "CryOpenDir.h"
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using namespace cryfs;
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using std::unique_ptr;
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using std::make_unique;
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using std::vector;
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using std::string;
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CryDevice::CryDevice(const bf::path &rootdir)
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:_rootdir(rootdir), _open_files() {
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:_rootdir(rootdir), _open_files(), _open_dirs() {
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}
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CryDevice::~CryDevice() {
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@ -126,3 +130,17 @@ void CryDevice::rename(const bf::path &from, const bf::path &to) {
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auto node = Load(from);
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node->rename(to);
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}
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int CryDevice::openDir(const bf::path &path) {
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auto dir = LoadDir(path);
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return _open_dirs.open(*dir);
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}
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unique_ptr<vector<string>> CryDevice::readDir(int descriptor) {
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return _open_dirs.get(descriptor)->readdir();
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}
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void CryDevice::closeDir(int descriptor) {
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_open_dirs.close(descriptor);
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}
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@ -8,6 +8,7 @@
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#include "utils/macros.h"
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#include "CryOpenFileList.h"
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#include "CryOpenDirList.h"
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namespace cryfs {
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class CryNode;
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@ -39,6 +40,10 @@ public:
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void unlink(const bf::path &path);
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void rename(const bf::path &from, const bf::path &to);
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int openDir(const bf::path &path);
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std::unique_ptr<std::vector<std::string>> readDir(int descriptor);
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void closeDir(int descriptor);
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const bf::path &RootDir() const;
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private:
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std::unique_ptr<CryNode> Load(const bf::path &path);
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@ -47,6 +52,7 @@ private:
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int openFile(const CryFile &file, int flags);
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const bf::path _rootdir;
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CryOpenFileList _open_files;
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CryOpenDirList _open_dirs;
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DISALLOW_COPY_AND_ASSIGN(CryDevice);
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};
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@ -45,7 +45,7 @@ void CryDir::rmdir() {
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CHECK_RETVAL(retval);
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}
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unique_ptr<CryOpenDir> CryDir::opendir() {
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unique_ptr<CryOpenDir> CryDir::opendir() const {
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return make_unique<CryOpenDir>(device(), path());
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}
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@ -21,7 +21,7 @@ public:
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std::unique_ptr<CryDir> createDir(const std::string &name, mode_t mode);
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void rmdir();
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std::unique_ptr<CryOpenDir> opendir();
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std::unique_ptr<CryOpenDir> opendir() const;
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private:
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DISALLOW_COPY_AND_ASSIGN(CryDir);
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};
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25
src/cryfs_lib/CryOpenDirList.cpp
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25
src/cryfs_lib/CryOpenDirList.cpp
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@ -0,0 +1,25 @@
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#include <cryfs_lib/CryOpenDirList.h>
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#include "CryDir.h"
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#include "CryOpenDir.h"
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using namespace cryfs;
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CryOpenDirList::~CryOpenDirList() {
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}
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CryOpenDirList::CryOpenDirList()
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:_open_dirs() {
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}
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int CryOpenDirList::open(const CryDir &dir) {
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return _open_dirs.add(dir.opendir());
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}
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CryOpenDir *CryOpenDirList::get(int descriptor) {
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return _open_dirs.get(descriptor);
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}
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void CryOpenDirList::close(int descriptor) {
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//The destructor of the stored CryOpenDir closes the dir
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_open_dirs.remove(descriptor);
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}
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src/cryfs_lib/CryOpenDirList.h
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28
src/cryfs_lib/CryOpenDirList.h
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@ -0,0 +1,28 @@
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#ifndef CRYFS_LIB_CRYOPENDIRLIST_H_
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#define CRYFS_LIB_CRYOPENDIRLIST_H_
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#include "utils/macros.h"
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#include "IdList.h"
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namespace cryfs {
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class CryOpenDir;
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class CryDir;
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class CryOpenDirList {
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public:
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CryOpenDirList();
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virtual ~CryOpenDirList();
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int open(const CryDir &rhs);
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CryOpenDir *get(int descriptor);
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void close(int descriptor);
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private:
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IdList<CryOpenDir> _open_dirs;
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DISALLOW_COPY_AND_ASSIGN(CryOpenDirList);
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};
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}
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#endif /* CRYFS_LIB_CRYOPENDIRLIST_H_ */
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@ -20,6 +20,6 @@ CryOpenFile *CryOpenFileList::get(int descriptor) {
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}
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void CryOpenFileList::close(int descriptor) {
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//The destructor of the stored CryFile::OpenFile closes the file
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//The destructor of the stored CryOpenFile closes the file
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_open_files.remove(descriptor);
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}
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@ -1,8 +1,6 @@
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#ifndef CRYFS_LIB_CRYOPENFILELIST_H_
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#define CRYFS_LIB_CRYOPENFILELIST_H_
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#include <map>
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#include <memory>
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#include "utils/macros.h"
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#include "IdList.h"
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