694 lines
18 KiB
C++
694 lines
18 KiB
C++
/*
|
|
* \brief Rump VFS plugin
|
|
* \author Christian Helmuth
|
|
* \author Sebastian Sumpf
|
|
* \author Emery Hemingway
|
|
* \date 2015-09-05
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2014-2017 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU Affero General Public License version 3.
|
|
*/
|
|
|
|
/* Genode includes */
|
|
#include <rump/env.h>
|
|
#include <rump_fs/fs.h>
|
|
#include <vfs/file_system_factory.h>
|
|
#include <vfs/vfs_handle.h>
|
|
#include <timer_session/connection.h>
|
|
#include <os/path.h>
|
|
|
|
extern "C" {
|
|
#include <sys/cdefs.h>
|
|
#include <sys/errno.h>
|
|
#include <fcntl.h>
|
|
#include <sys/dirent.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
#include <sys/param.h>
|
|
#include <rump/rump.h>
|
|
#include <rump/rump_syscalls.h>
|
|
}
|
|
|
|
extern int errno;
|
|
|
|
namespace Vfs { struct Rump_file_system; };
|
|
|
|
static void _rump_sync()
|
|
{
|
|
/* sync through front-end */
|
|
rump_sys_sync();
|
|
|
|
/* sync Genode back-end */
|
|
rump_io_backend_sync();
|
|
}
|
|
|
|
|
|
static char const *fs_types[] = { RUMP_MOUNT_CD9660, RUMP_MOUNT_EXT2FS,
|
|
RUMP_MOUNT_FFS, RUMP_MOUNT_MSDOS,
|
|
RUMP_MOUNT_NTFS, RUMP_MOUNT_UDF, 0 };
|
|
|
|
class Vfs::Rump_file_system : public File_system
|
|
{
|
|
private:
|
|
|
|
enum { BUFFER_SIZE = 4096 };
|
|
|
|
typedef Genode::Path<MAX_PATH_LEN> Path;
|
|
|
|
Genode::Env &_env;
|
|
|
|
struct Rump_vfs_handle : public Vfs_handle
|
|
{
|
|
using Vfs_handle::Vfs_handle;
|
|
|
|
virtual Read_result read(char *buf, file_size buf_size,
|
|
file_size seek_offset, file_size &out_count)
|
|
{
|
|
Genode::error("Rump_vfs_handle::read() called");
|
|
return READ_ERR_INVALID;
|
|
}
|
|
|
|
virtual Write_result write(char const *buf, file_size buf_size,
|
|
file_size seek_offset,
|
|
file_size &out_count)
|
|
{
|
|
Genode::error("Rump_vfs_handle::write() called");
|
|
return WRITE_ERR_INVALID;
|
|
}
|
|
};
|
|
|
|
class Rump_vfs_file_handle : public Rump_vfs_handle
|
|
{
|
|
private:
|
|
|
|
int _fd;
|
|
|
|
public:
|
|
|
|
Rump_vfs_file_handle(File_system &fs, Allocator &alloc,
|
|
int status_flags, int fd)
|
|
: Rump_vfs_handle(fs, fs, alloc, status_flags), _fd(fd) { }
|
|
|
|
~Rump_vfs_file_handle() { rump_sys_close(_fd); }
|
|
|
|
Ftruncate_result ftruncate(file_size len)
|
|
{
|
|
if (rump_sys_ftruncate(_fd, len) != 0) switch (errno) {
|
|
case EACCES: return FTRUNCATE_ERR_NO_PERM;
|
|
case EINTR: return FTRUNCATE_ERR_INTERRUPT;
|
|
case ENOSPC: return FTRUNCATE_ERR_NO_SPACE;
|
|
default:
|
|
return FTRUNCATE_ERR_NO_PERM;
|
|
}
|
|
return FTRUNCATE_OK;
|
|
}
|
|
|
|
Read_result read(char *buf, file_size buf_size,
|
|
file_size seek_offset, file_size &out_count) override
|
|
{
|
|
ssize_t n = rump_sys_pread(_fd, buf, buf_size, seek_offset);
|
|
if (n == -1) switch (errno) {
|
|
case EWOULDBLOCK: return READ_ERR_WOULD_BLOCK;
|
|
case EINVAL: return READ_ERR_INVALID;
|
|
case EIO: return READ_ERR_IO;
|
|
case EINTR: return READ_ERR_INTERRUPT;
|
|
default:
|
|
return READ_ERR_IO;
|
|
}
|
|
out_count = n;
|
|
return READ_OK;
|
|
}
|
|
|
|
Write_result write(char const *buf, file_size buf_size,
|
|
file_size seek_offset,
|
|
file_size &out_count) override
|
|
{
|
|
out_count = 0;
|
|
|
|
ssize_t n = rump_sys_pwrite(_fd, buf, buf_size, seek_offset);
|
|
if (n == -1) switch (errno) {
|
|
case EWOULDBLOCK: return WRITE_ERR_WOULD_BLOCK;
|
|
case EINVAL: return WRITE_ERR_INVALID;
|
|
case EIO: return WRITE_ERR_IO;
|
|
case EINTR: return WRITE_ERR_INTERRUPT;
|
|
default:
|
|
return WRITE_ERR_IO;
|
|
}
|
|
out_count = n;
|
|
return WRITE_OK;
|
|
}
|
|
};
|
|
|
|
class Rump_vfs_dir_handle : public Rump_vfs_handle
|
|
{
|
|
private:
|
|
|
|
int _fd;
|
|
Path _path;
|
|
|
|
Read_result _finish_read(char const *path,
|
|
struct ::dirent *dent, Dirent &vfs_dir)
|
|
{
|
|
/*
|
|
* We cannot use 'd_type' member of 'dirent' here since the EXT2
|
|
* implementation sets the type to unkown. Hence we use stat.
|
|
*/
|
|
struct stat s;
|
|
rump_sys_lstat(path, &s);
|
|
|
|
if (S_ISREG(s.st_mode))
|
|
vfs_dir.type = Dirent_type::DIRENT_TYPE_FILE;
|
|
else if (S_ISDIR(s.st_mode))
|
|
vfs_dir.type = Dirent_type::DIRENT_TYPE_DIRECTORY;
|
|
else if (S_ISLNK(s.st_mode))
|
|
vfs_dir.type = Dirent_type::DIRENT_TYPE_SYMLINK;
|
|
else if (S_ISBLK(s.st_mode))
|
|
vfs_dir.type = Dirent_type::DIRENT_TYPE_BLOCKDEV;
|
|
else if (S_ISCHR(s.st_mode))
|
|
vfs_dir.type = Dirent_type::DIRENT_TYPE_CHARDEV;
|
|
else if (S_ISFIFO(s.st_mode))
|
|
vfs_dir.type = Dirent_type::DIRENT_TYPE_FIFO;
|
|
else
|
|
vfs_dir.type = Dirent_type::DIRENT_TYPE_FILE;
|
|
|
|
strncpy(vfs_dir.name, dent->d_name, sizeof(Dirent::name));
|
|
|
|
return READ_OK;
|
|
}
|
|
|
|
public:
|
|
|
|
Rump_vfs_dir_handle(File_system &fs, Allocator &alloc,
|
|
int status_flags, int fd, char const *path)
|
|
: Rump_vfs_handle(fs, fs, alloc, status_flags),
|
|
_fd(fd),
|
|
_path(path) { }
|
|
|
|
~Rump_vfs_dir_handle() { rump_sys_close(_fd); }
|
|
|
|
Read_result read(char *dst, file_size count,
|
|
file_size seek_offset,
|
|
file_size &out_count) override
|
|
{
|
|
out_count = 0;
|
|
|
|
if (count < sizeof(Dirent))
|
|
return READ_ERR_INVALID;
|
|
|
|
file_size index = seek_offset / sizeof(Dirent);
|
|
|
|
Dirent *vfs_dir = (Dirent*)dst;
|
|
|
|
out_count = sizeof(Dirent);
|
|
|
|
rump_sys_lseek(_fd, 0, SEEK_SET);
|
|
|
|
int bytes;
|
|
vfs_dir->fileno = 0;
|
|
char *buf = _buffer();
|
|
struct ::dirent *dent = nullptr;
|
|
do {
|
|
bytes = rump_sys_getdents(_fd, buf, BUFFER_SIZE);
|
|
void *current, *end;
|
|
for (current = buf, end = &buf[bytes];
|
|
current < end;
|
|
current = _DIRENT_NEXT((::dirent *)current))
|
|
{
|
|
dent = (::dirent *)current;
|
|
if (strcmp(".", dent->d_name) && strcmp("..", dent->d_name)) {
|
|
if (vfs_dir->fileno++ == index) {
|
|
Path newpath(dent->d_name, _path.base());
|
|
return _finish_read(newpath.base(), dent, *vfs_dir);
|
|
}
|
|
}
|
|
}
|
|
} while (bytes > 0);
|
|
|
|
vfs_dir->type = DIRENT_TYPE_END;
|
|
vfs_dir->name[0] = '\0';
|
|
return READ_OK;
|
|
}
|
|
};
|
|
|
|
class Rump_vfs_symlink_handle : public Rump_vfs_handle
|
|
{
|
|
private:
|
|
|
|
Path _path;
|
|
|
|
public:
|
|
|
|
Rump_vfs_symlink_handle(File_system &fs, Allocator &alloc,
|
|
int status_flags, char const *path)
|
|
: Rump_vfs_handle(fs, fs, alloc, status_flags), _path(path) { }
|
|
|
|
Read_result read(char *buf, file_size buf_size,
|
|
file_size seek_offset,
|
|
file_size &out_count) override
|
|
{
|
|
out_count = 0;
|
|
|
|
if (seek_offset != 0) {
|
|
/* partial read is not supported */
|
|
return READ_ERR_INVALID;
|
|
}
|
|
|
|
ssize_t n = rump_sys_readlink(_path.base(), buf, buf_size);
|
|
if (n == -1)
|
|
return READ_ERR_IO;
|
|
|
|
out_count = n;
|
|
|
|
return READ_OK;
|
|
}
|
|
|
|
Write_result write(char const *buf, file_size buf_size,
|
|
file_size seek_offset,
|
|
file_size &out_count) override
|
|
{
|
|
rump_sys_unlink(_path.base());
|
|
|
|
if (rump_sys_symlink(buf, _path.base()) != 0) {
|
|
out_count = 0;
|
|
return WRITE_OK;
|
|
}
|
|
|
|
out_count = buf_size;
|
|
return WRITE_OK;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* We define our own fs arg structure to fit all sizes, we assume that 'fspec'
|
|
* is the only valid argument and all other fields are unused.
|
|
*/
|
|
struct fs_args
|
|
{
|
|
char *fspec;
|
|
char pad[150];
|
|
|
|
fs_args() { Genode::memset(pad, 0, sizeof(pad)); }
|
|
};
|
|
|
|
static bool _check_type(char const *type)
|
|
{
|
|
for (int i = 0; fs_types[i]; i++)
|
|
if (!Genode::strcmp(type, fs_types[i]))
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
void _print_types()
|
|
{
|
|
Genode::error("fs types:");
|
|
for (int i = 0; fs_types[i]; ++i)
|
|
Genode::error("\t", fs_types[i]);
|
|
}
|
|
|
|
static char *_buffer()
|
|
{
|
|
/* buffer for directory entries */
|
|
static char buf[BUFFER_SIZE];
|
|
return buf;
|
|
}
|
|
|
|
public:
|
|
|
|
Rump_file_system(Genode::Env &env, Xml_node const &config)
|
|
: _env(env)
|
|
{
|
|
typedef Genode::String<16> Fs_type;
|
|
|
|
Fs_type fs_type = config.attribute_value("fs", Fs_type());
|
|
|
|
if (!_check_type(fs_type.string())) {
|
|
Genode::error("Invalid or no file system given (use \'<rump fs=\"<fs type>\"/>)");
|
|
_print_types();
|
|
throw Genode::Exception();
|
|
}
|
|
|
|
/* mount into extra-terrestrial-file system */
|
|
struct fs_args args;
|
|
int opts = config.attribute_value("writeable", true) ?
|
|
0 : RUMP_MNT_RDONLY;
|
|
|
|
args.fspec = (char *)GENODE_DEVICE;
|
|
if (rump_sys_mount(fs_type.string(), "/", opts, &args, sizeof(args)) == -1) {
|
|
Genode::error("Mounting '",fs_type,"' file system failed (",errno,")");
|
|
throw Genode::Exception();
|
|
}
|
|
|
|
Genode::log(fs_type," file system mounted");
|
|
}
|
|
|
|
/***************************
|
|
** File_system interface **
|
|
***************************/
|
|
|
|
static char const *name() { return "rump"; }
|
|
char const *type() override { return "rump"; }
|
|
|
|
|
|
/*********************************
|
|
** Directory service interface **
|
|
*********************************/
|
|
|
|
Genode::Dataspace_capability dataspace(char const *path) override
|
|
{
|
|
int fd = rump_sys_open(path, O_RDONLY);
|
|
if (fd == -1) return Genode::Dataspace_capability();
|
|
|
|
struct stat s;
|
|
if (rump_sys_lstat(path, &s) != 0) return Genode::Dataspace_capability();
|
|
size_t const ds_size = s.st_size;
|
|
|
|
char *local_addr = nullptr;
|
|
Ram_dataspace_capability ds_cap;
|
|
try {
|
|
ds_cap = _env.ram().alloc(ds_size);
|
|
|
|
local_addr = _env.rm().attach(ds_cap);
|
|
|
|
enum { CHUNK_SIZE = 16U << 10 };
|
|
|
|
for (size_t i = 0; i < ds_size;) {
|
|
ssize_t n = rump_sys_read(fd, &local_addr[i], min(ds_size-i, CHUNK_SIZE));
|
|
if (n == -1)
|
|
throw n;
|
|
i += n;
|
|
}
|
|
|
|
_env.rm().detach(local_addr);
|
|
} catch(...) {
|
|
if (local_addr)
|
|
_env.rm().detach(local_addr);
|
|
_env.ram().free(ds_cap);
|
|
}
|
|
rump_sys_close(fd);
|
|
return ds_cap;
|
|
}
|
|
|
|
void release(char const *path,
|
|
Genode::Dataspace_capability ds_cap) override
|
|
{
|
|
if (ds_cap.valid())
|
|
_env.ram().free(
|
|
static_cap_cast<Genode::Ram_dataspace>(ds_cap));
|
|
}
|
|
|
|
file_size num_dirent(char const *path) override
|
|
{
|
|
file_size n = 0;
|
|
int fd = rump_sys_open(*path ? path : "/", O_RDONLY | O_DIRECTORY);
|
|
if (fd == -1)
|
|
return 0;
|
|
|
|
rump_sys_lseek(fd, 0, SEEK_SET);
|
|
|
|
int bytes = 0;
|
|
char *buf = _buffer();
|
|
do {
|
|
bytes = rump_sys_getdents(fd, buf, BUFFER_SIZE);
|
|
void *current, *end;
|
|
for (current = buf, end = &buf[bytes];
|
|
current < end;
|
|
current = _DIRENT_NEXT((::dirent *)current))
|
|
{
|
|
struct ::dirent *dent = (::dirent *)current;
|
|
if (strcmp(".", dent->d_name) && strcmp("..", dent->d_name))
|
|
++n;
|
|
}
|
|
} while(bytes);
|
|
|
|
rump_sys_close(fd);
|
|
return n;
|
|
}
|
|
|
|
bool directory(char const *path) override
|
|
{
|
|
struct stat s;
|
|
if (rump_sys_lstat(path, &s) != 0) return false;
|
|
return S_ISDIR(s.st_mode);
|
|
}
|
|
|
|
char const *leaf_path(char const *path) override
|
|
{
|
|
struct stat s;
|
|
return (rump_sys_lstat(path, &s) == 0) ? path : 0;
|
|
}
|
|
|
|
Open_result open(char const *path, unsigned mode,
|
|
Vfs_handle **handle,
|
|
Allocator &alloc) override
|
|
{
|
|
/* OPEN_MODE_CREATE (or O_EXC) will not work */
|
|
if (mode & OPEN_MODE_CREATE)
|
|
mode |= O_CREAT;
|
|
|
|
int fd = rump_sys_open(path, mode);
|
|
if (fd == -1) switch (errno) {
|
|
case ENAMETOOLONG: return OPEN_ERR_NAME_TOO_LONG;
|
|
case EACCES: return OPEN_ERR_NO_PERM;
|
|
case ENOENT: return OPEN_ERR_UNACCESSIBLE;
|
|
case EEXIST: return OPEN_ERR_EXISTS;
|
|
case ENOSPC: return OPEN_ERR_NO_SPACE;
|
|
default:
|
|
return OPEN_ERR_NO_PERM;
|
|
}
|
|
|
|
*handle = new (alloc) Rump_vfs_file_handle(*this, alloc, mode, fd);
|
|
return OPEN_OK;
|
|
}
|
|
|
|
Opendir_result opendir(char const *path, bool create,
|
|
Vfs_handle **handle, Allocator &alloc) override
|
|
{
|
|
if (strlen(path) == 0)
|
|
path = "/";
|
|
|
|
if (create) {
|
|
if (rump_sys_mkdir(path, 0777) != 0) switch (::errno) {
|
|
case ENAMETOOLONG: return OPENDIR_ERR_NAME_TOO_LONG;
|
|
case EACCES: return OPENDIR_ERR_PERMISSION_DENIED;
|
|
case ENOENT: return OPENDIR_ERR_LOOKUP_FAILED;
|
|
case EEXIST: return OPENDIR_ERR_NODE_ALREADY_EXISTS;
|
|
case ENOSPC: return OPENDIR_ERR_NO_SPACE;
|
|
default:
|
|
return OPENDIR_ERR_PERMISSION_DENIED;
|
|
}
|
|
}
|
|
|
|
int fd = rump_sys_open(path, O_RDONLY | O_DIRECTORY);
|
|
if (fd == -1) switch (errno) {
|
|
case ENAMETOOLONG: return OPENDIR_ERR_NAME_TOO_LONG;
|
|
case EACCES: return OPENDIR_ERR_PERMISSION_DENIED;
|
|
case ENOENT: return OPENDIR_ERR_LOOKUP_FAILED;
|
|
case EEXIST: return OPENDIR_ERR_NODE_ALREADY_EXISTS;
|
|
case ENOSPC: return OPENDIR_ERR_NO_SPACE;
|
|
default:
|
|
return OPENDIR_ERR_PERMISSION_DENIED;
|
|
}
|
|
|
|
*handle = new (alloc) Rump_vfs_dir_handle(*this, alloc, 0777, fd, path);
|
|
return OPENDIR_OK;
|
|
|
|
}
|
|
|
|
Openlink_result openlink(char const *path, bool create,
|
|
Vfs_handle **handle, Allocator &alloc) override
|
|
{
|
|
if (create) {
|
|
if (rump_sys_symlink("", path) != 0) switch (errno) {
|
|
case EEXIST: return OPENLINK_ERR_NODE_ALREADY_EXISTS;
|
|
case ENOENT: return OPENLINK_ERR_LOOKUP_FAILED;
|
|
case ENOSPC: return OPENLINK_ERR_NO_SPACE;
|
|
case EACCES: return OPENLINK_ERR_PERMISSION_DENIED;
|
|
case ENAMETOOLONG: return OPENLINK_ERR_NAME_TOO_LONG;
|
|
default:
|
|
return OPENLINK_ERR_PERMISSION_DENIED;
|
|
}
|
|
}
|
|
|
|
char dummy;
|
|
if (rump_sys_readlink(path, &dummy, sizeof(dummy)) == -1) switch(errno) {
|
|
case ENOENT: return OPENLINK_ERR_LOOKUP_FAILED;
|
|
default:
|
|
return OPENLINK_ERR_PERMISSION_DENIED;
|
|
}
|
|
|
|
*handle = new (alloc) Rump_vfs_symlink_handle(*this, alloc, 0777, path);
|
|
return OPENLINK_OK;
|
|
}
|
|
|
|
void close(Vfs_handle *vfs_handle) override
|
|
{
|
|
Rump_vfs_file_handle *rump_handle =
|
|
static_cast<Rump_vfs_file_handle *>(vfs_handle);
|
|
|
|
if (rump_handle)
|
|
destroy(vfs_handle->alloc(), rump_handle);
|
|
}
|
|
|
|
Stat_result stat(char const *path, Stat &stat)
|
|
{
|
|
struct stat sb;
|
|
if (rump_sys_lstat(path, &sb) != 0) return STAT_ERR_NO_ENTRY;
|
|
|
|
stat.size = sb.st_size;
|
|
stat.mode = sb.st_mode;
|
|
stat.uid = sb.st_uid;
|
|
stat.gid = sb.st_gid;
|
|
stat.inode = sb.st_ino;
|
|
stat.device = sb.st_dev;
|
|
|
|
return STAT_OK;
|
|
}
|
|
|
|
Unlink_result unlink(char const *path) override
|
|
{
|
|
struct stat s;
|
|
if (rump_sys_lstat(path, &s) == -1)
|
|
return UNLINK_ERR_NO_ENTRY;
|
|
|
|
if (S_ISDIR(s.st_mode)) {
|
|
if (rump_sys_rmdir(path) == 0) return UNLINK_OK;
|
|
} else {
|
|
if (rump_sys_unlink(path) == 0) return UNLINK_OK;
|
|
}
|
|
switch (errno) {
|
|
case ENOENT: return UNLINK_ERR_NO_ENTRY;
|
|
case ENOTEMPTY: return UNLINK_ERR_NOT_EMPTY;
|
|
}
|
|
return UNLINK_ERR_NO_PERM;
|
|
}
|
|
|
|
Rename_result rename(char const *from, char const *to) override
|
|
{
|
|
if (rump_sys_rename(from, to) != 0) switch (errno) {
|
|
case ENOENT: return RENAME_ERR_NO_ENTRY;
|
|
case EXDEV: return RENAME_ERR_CROSS_FS;
|
|
case EACCES: return RENAME_ERR_NO_PERM;
|
|
}
|
|
return RENAME_OK;
|
|
}
|
|
|
|
|
|
/*******************************
|
|
** File io service interface **
|
|
*******************************/
|
|
|
|
Write_result write(Vfs_handle *vfs_handle,
|
|
char const *buf, file_size buf_size,
|
|
file_size &out_count) override
|
|
{
|
|
Rump_vfs_handle *handle =
|
|
static_cast<Rump_vfs_handle *>(vfs_handle);
|
|
|
|
if (handle)
|
|
return handle->write(buf, buf_size, handle->seek(), out_count);
|
|
|
|
return WRITE_ERR_INVALID;
|
|
}
|
|
|
|
Read_result complete_read(Vfs_handle *vfs_handle, char *buf,
|
|
file_size buf_size,
|
|
file_size &out_count) override
|
|
{
|
|
Rump_vfs_handle *handle =
|
|
static_cast<Rump_vfs_handle *>(vfs_handle);
|
|
|
|
if (handle)
|
|
return handle->read(buf, buf_size, handle->seek(), out_count);
|
|
|
|
return READ_ERR_INVALID;
|
|
}
|
|
|
|
bool read_ready(Vfs_handle *) override { return true; }
|
|
|
|
Ftruncate_result ftruncate(Vfs_handle *vfs_handle, file_size len) override
|
|
{
|
|
Rump_vfs_file_handle *handle =
|
|
dynamic_cast<Rump_vfs_file_handle *>(vfs_handle);
|
|
|
|
if (handle)
|
|
return handle->ftruncate(len);
|
|
|
|
return FTRUNCATE_ERR_NO_PERM;
|
|
}
|
|
|
|
Sync_result complete_sync(Vfs_handle *) override
|
|
{
|
|
_rump_sync();
|
|
return SYNC_OK;
|
|
}
|
|
};
|
|
|
|
|
|
class Rump_factory : public Vfs::File_system_factory
|
|
{
|
|
private:
|
|
|
|
Timer::Connection _timer;
|
|
Genode::Io_signal_handler<Rump_factory> _sync_handler;
|
|
|
|
void _sync() { _rump_sync(); }
|
|
|
|
public:
|
|
|
|
Rump_factory(Genode::Env &env, Genode::Allocator &alloc)
|
|
: _timer(env, "rump-sync"),
|
|
_sync_handler(env.ep(), *this, &Rump_factory::_sync)
|
|
{
|
|
Rump::construct_env(env);
|
|
|
|
rump_io_backend_init();
|
|
|
|
/* start rump kernel */
|
|
rump_init();
|
|
|
|
/* register block device */
|
|
rump_pub_etfs_register(
|
|
GENODE_DEVICE, GENODE_BLOCK_SESSION, RUMP_ETFS_BLK);
|
|
|
|
/* set all bits but the stickies */
|
|
rump_sys_umask(S_ISUID|S_ISGID|S_ISVTX);
|
|
|
|
/* start syncing */
|
|
enum { TEN_SEC = 10*1000*1000 };
|
|
_timer.sigh(_sync_handler);
|
|
_timer.trigger_periodic(TEN_SEC);
|
|
|
|
}
|
|
|
|
Vfs::File_system *create(Genode::Env &env,
|
|
Genode::Allocator &alloc,
|
|
Genode::Xml_node config,
|
|
Vfs::Io_response_handler &) override
|
|
{
|
|
return new (alloc) Vfs::Rump_file_system(env, config);
|
|
}
|
|
};
|
|
|
|
|
|
extern "C" Vfs::File_system_factory *vfs_file_system_factory(void)
|
|
{
|
|
struct Extern_factory : Vfs::File_system_factory
|
|
{
|
|
Vfs::File_system *create(Genode::Env &env,
|
|
Genode::Allocator &alloc,
|
|
Genode::Xml_node node,
|
|
Vfs::Io_response_handler &io_handler) override
|
|
{
|
|
static Rump_factory factory(env, alloc);
|
|
return factory.create(env, alloc, node, io_handler);
|
|
}
|
|
};
|
|
|
|
static Extern_factory factory;
|
|
return &factory;
|
|
}
|