Implemented file operations using our class hierarchy
This commit is contained in:
Sebastian Messmer
parent
80d708d62d
commit
6b8c205916
104
src/CryFuse.cpp
104
src/CryFuse.cpp
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@ -43,6 +43,7 @@ int CryFuse::fgetattr(const path &path, struct stat *stbuf, fuse_file_info *file
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// opening it, and then using the FD for an fgetattr. So in the
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// special case of a path of "/", I need to do a getattr on the
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// underlying root directory instead of doing the fgetattr().
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// TODO Check if necessary
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if (path.native() == "/") {
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return getattr(path, stbuf);
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}
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@ -55,6 +56,7 @@ int CryFuse::fgetattr(const path &path, struct stat *stbuf, fuse_file_info *file
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}
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}
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//TODO
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int CryFuse::readlink(const path &path, char *buf, size_t size) {
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//printf("readlink(%s, _, %zu)\n", path.c_str(), size);
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auto real_path = _device->RootDir() / path;
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@ -78,6 +80,7 @@ int CryFuse::mknod(const path &path, mode_t mode, dev_t rdev) {
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return 0;
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}
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//TODO
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int CryFuse::mkdir(const path &path, mode_t mode) {
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//printf("mkdir(%s, %d)\n", path.c_str(), mode);
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auto real_path = _device->RootDir() / path;
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@ -85,6 +88,7 @@ int CryFuse::mkdir(const path &path, mode_t mode) {
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return errcode_map(retstat);
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}
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//TODO
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int CryFuse::unlink(const path &path) {
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//printf("unlink(%s)\n", path.c_str());
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auto real_path = _device->RootDir() / path;
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@ -92,6 +96,7 @@ int CryFuse::unlink(const path &path) {
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return errcode_map(retstat);
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}
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//TODO
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int CryFuse::rmdir(const path &path) {
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//printf("rmdir(%s)\n", path.c_str());
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auto real_path = _device->RootDir() / path;
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@ -99,6 +104,7 @@ int CryFuse::rmdir(const path &path) {
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return errcode_map(retstat);
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}
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//TODO
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int CryFuse::symlink(const path &from, const path &to) {
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//printf("symlink(%s, %s)\n", from.c_str(), to.c_str());
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auto real_from = _device->RootDir() / from;
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@ -107,6 +113,7 @@ int CryFuse::symlink(const path &from, const path &to) {
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return errcode_map(retstat);
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}
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//TODO
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int CryFuse::rename(const path &from, const path &to) {
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//printf("rename(%s, %s)\n", from.c_str(), to.c_str());
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auto real_from = _device->RootDir() / from;
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@ -115,6 +122,7 @@ int CryFuse::rename(const path &from, const path &to) {
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return errcode_map(retstat);
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}
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//TODO
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int CryFuse::link(const path &from, const path &to) {
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//printf("link(%s, %s)\n", from.c_str(), to.c_str());
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auto real_from = _device->RootDir() / from;
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@ -123,6 +131,7 @@ int CryFuse::link(const path &from, const path &to) {
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return errcode_map(retstat);
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}
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//TODO
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int CryFuse::chmod(const path &path, mode_t mode) {
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//printf("chmod(%s, %d)\n", path.c_str(), mode);
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auto real_path = _device->RootDir() / path;
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@ -130,6 +139,7 @@ int CryFuse::chmod(const path &path, mode_t mode) {
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return errcode_map(retstat);
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}
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//TODO
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int CryFuse::chown(const path &path, uid_t uid, gid_t gid) {
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//printf("chown(%s, %d, %d)\n", path.c_str(), uid, gid);
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auto real_path = _device->RootDir() / path;
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@ -139,18 +149,26 @@ int CryFuse::chown(const path &path, uid_t uid, gid_t gid) {
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int CryFuse::truncate(const path &path, off_t size) {
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//printf("truncate(%s, %zu)\n", path.c_str(), size);
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auto real_path = _device->RootDir() / path;
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int retstat = ::truncate(real_path.c_str(), size);
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return errcode_map(retstat);
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try {
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_device->truncate(path, size);
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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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int CryFuse::ftruncate(const path &path, off_t size, fuse_file_info *fileinfo) {
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//printf("ftruncate(%s, %zu, _)\n", path.c_str(), size);
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UNUSED(path);
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int retstat = ::ftruncate(fileinfo->fh, size);
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return errcode_map(retstat);
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try {
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_device->ftruncate(fileinfo->fh, size);
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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::utimens(const path &path, const timespec times[2]) {
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//printf("utimens(%s, _)\n", path.c_str());
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auto real_path = _device->RootDir() / path;
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@ -165,36 +183,48 @@ int CryFuse::utimens(const path &path, const timespec times[2]) {
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int CryFuse::open(const path &path, fuse_file_info *fileinfo) {
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//printf("open(%s, _)\n", path.c_str());
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auto real_path = _device->RootDir() / path;
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int fd = ::open(real_path.c_str(), fileinfo->flags);
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if (fd < 0) {
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return -errno;
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try {
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fileinfo->fh = _device->openFile(path, fileinfo->flags);
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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 = fd;
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return 0;
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}
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int CryFuse::release(const path &path, fuse_file_info *fileinfo) {
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//printf("release(%s, _)\n", path.c_str());
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UNUSED(path);
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int retstat = ::close(fileinfo->fh);
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return errcode_map(retstat);
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try {
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_device->closeFile(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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int CryFuse::read(const path &path, char *buf, size_t size, off_t offset, fuse_file_info *fileinfo) {
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//printf("read(%s, _, %zu, %zu, _)\n", path.c_str(), size, offset);
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UNUSED(path);
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int retstat = ::pread(fileinfo->fh, buf, size, offset);
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return errcode_map(retstat);
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try {
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_device->read(fileinfo->fh, buf, size, offset);
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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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int CryFuse::write(const path &path, const char *buf, size_t size, off_t offset, fuse_file_info *fileinfo) {
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//printf("write(%s, _, %zu, %zu, _)\n", path.c_str(), size, offset);
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UNUSED(path);
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int retstat = ::pwrite(fileinfo->fh, buf, size, offset);
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return errcode_map(retstat);
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try {
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_device->write(fileinfo->fh, buf, size, offset);
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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::statfs(const path &path, struct statvfs *fsstat) {
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//printf("statfs(%s, _)\n", path.c_str());
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auto real_path = _device->RootDir() / path;
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@ -202,6 +232,7 @@ int CryFuse::statfs(const path &path, struct statvfs *fsstat) {
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return errcode_map(retstat);
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}
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//TODO
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int CryFuse::flush(const path &path, fuse_file_info *fileinfo) {
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//printf("Called non-implemented flush(%s, _)\n", path.c_str());
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UNUSED(path);
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@ -212,15 +243,19 @@ int CryFuse::flush(const path &path, fuse_file_info *fileinfo) {
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int CryFuse::fsync(const path &path, int datasync, fuse_file_info *fileinfo) {
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//printf("fsync(%s, %d, _)\n", path.c_str(), datasync);
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UNUSED(path);
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int retstat = 0;
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if (datasync) {
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retstat = ::fdatasync(fileinfo->fh);
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} else {
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retstat = ::fsync(fileinfo->fh);
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try {
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if (datasync) {
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_device->fdatasync(fileinfo->fh);
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} else {
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_device->fsync(fileinfo->fh);
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}
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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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return errcode_map(retstat);
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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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@ -232,6 +267,7 @@ int CryFuse::opendir(const path &path, fuse_file_info *fileinfo) {
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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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//printf("readdir(%s, _, _, %zu, _)\n", path.c_str(), offset);
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UNUSED(offset);
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@ -252,6 +288,7 @@ int CryFuse::readdir(const path &path, void *buf, fuse_fill_dir_t filler, off_t
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return 0;
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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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@ -259,6 +296,7 @@ int CryFuse::releasedir(const path &path, fuse_file_info *fileinfo) {
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return errcode_map(retstat);
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}
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//TODO
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int CryFuse::fsyncdir(const path &path, int datasync, fuse_file_info *fileinfo) {
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UNUSED(fileinfo);
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UNUSED(datasync);
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@ -278,20 +316,22 @@ void CryFuse::destroy() {
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int CryFuse::access(const path &path, int mask) {
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//printf("access(%s, %d)\n", path.c_str(), mask);
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auto real_path = _device->RootDir() / path;
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int retstat = ::access(real_path.c_str(), mask);
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return errcode_map(retstat);
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try {
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_device->access(path, mask);
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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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int CryFuse::create(const path &path, mode_t mode, fuse_file_info *fileinfo) {
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//printf("create(%s, %d, _)\n", path.c_str(), mode);
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auto real_path = _device->RootDir() / path;
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int fd = ::creat(real_path.c_str(), mode);
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if (fd < 0) {
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return -errno;
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try {
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fileinfo->fh = _device->createFile(path, mode);
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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 = fd;
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return 0;
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}
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} /* namespace cryfs */
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