Add filesystem stacking support to high level API
diff --git a/lib/Makefile.am b/lib/Makefile.am
index 15f5ae6..983c01f 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -24,12 +24,14 @@
fuse_session.c \
fuse_signals.c \
helper.c \
+ modules/subdir.c \
+ modules/iconv.c \
$(mount_source)
-libfuse_la_LDFLAGS = $(libfuse_libs) -version-number 2:6:1 \
+libfuse_la_LDFLAGS = @libfuse_libs@ -version-number 2:7:0 \
-Wl,--version-script,$(srcdir)/fuse_versionscript
libulockmgr_la_SOURCES = ulockmgr.c
-libulockmgr_la_LDFLAGS = -version-number 1:0:0
+libulockmgr_la_LDFLAGS = -version-number 1:0:1
EXTRA_DIST = fuse_versionscript
diff --git a/lib/fuse.c b/lib/fuse.c
index 994a31f..bc944c7 100644
--- a/lib/fuse.c
+++ b/lib/fuse.c
@@ -14,6 +14,8 @@
#include "fuse_lowlevel.h"
#include "fuse_opt.h"
#include "fuse_misc.h"
+#include "fuse_common_compat.h"
+#include "fuse_compat.h"
#include <stdio.h>
#include <string.h>
@@ -25,6 +27,7 @@
#include <limits.h>
#include <errno.h>
#include <signal.h>
+#include <dlfcn.h>
#include <assert.h>
#include <sys/param.h>
#include <sys/uio.h>
@@ -57,12 +60,24 @@
int auto_cache;
int intr;
int intr_signal;
+ int help;
+ char *modules;
+};
+
+struct fuse_fs {
+ struct fuse_operations op;
+ struct fuse_module *m;
+ void *user_data;
+ int compat;
+};
+
+struct fusemod_so {
+ void *handle;
+ int ctr;
};
struct fuse {
struct fuse_session *se;
- struct fuse_operations op;
- int compat;
struct node **name_table;
size_t name_table_size;
struct node **id_table;
@@ -72,9 +87,9 @@
unsigned int hidectr;
pthread_mutex_t lock;
pthread_rwlock_t tree_lock;
- void *user_data;
struct fuse_config conf;
int intr_installed;
+ struct fuse_fs *fs;
};
struct lock {
@@ -104,7 +119,7 @@
struct lock *locks;
};
-struct fuse_dirhandle {
+struct fuse_dh {
pthread_mutex_t lock;
struct fuse *fuse;
fuse_req_t req;
@@ -119,6 +134,12 @@
fuse_ino_t nodeid;
};
+/* old dir handle */
+struct fuse_dirhandle {
+ fuse_fill_dir_t filler;
+ void *buf;
+};
+
struct fuse_context_i {
struct fuse_context ctx;
fuse_req_t req;
@@ -127,14 +148,107 @@
static pthread_key_t fuse_context_key;
static pthread_mutex_t fuse_context_lock = PTHREAD_MUTEX_INITIALIZER;
static int fuse_context_ref;
+static struct fusemod_so *fuse_current_so;
+static struct fuse_module *fuse_modules;
-static int fuse_compat_open(struct fuse *, fuse_req_t, char *,
- struct fuse_file_info *);
-static void fuse_compat_release(struct fuse *, fuse_req_t, char *,
- struct fuse_file_info *);
-static int fuse_compat_opendir(struct fuse *, fuse_req_t, char *,
- struct fuse_file_info *);
-static int fuse_compat_statfs(struct fuse *, fuse_req_t, struct statvfs *);
+static int fuse_load_so_name(const char *soname)
+{
+ struct fusemod_so *so;
+
+ so = calloc(1, sizeof(struct fusemod_so));
+ if (!so) {
+ fprintf(stderr, "fuse: memory allocation failed\n");
+ return -1;
+ }
+
+ pthread_mutex_lock(&fuse_context_lock);
+ fuse_current_so = so;
+ so->handle = dlopen(soname, RTLD_NOW);
+ fuse_current_so = NULL;
+ pthread_mutex_unlock(&fuse_context_lock);
+ if (!so->handle) {
+ fprintf(stderr, "fuse: %s\n", dlerror());
+ goto err;
+ }
+ if (!so->ctr) {
+ fprintf(stderr, "fuse: %s did not register any modules", soname);
+ goto err;
+ }
+ return 0;
+
+ err:
+ if (so->handle)
+ dlclose(so->handle);
+ free(so);
+ return -1;
+}
+
+static int fuse_load_so_module(const char *module)
+{
+ int res;
+ char *soname = malloc(strlen(module) + 64);
+ if (!soname) {
+ fprintf(stderr, "fuse: memory allocation failed\n");
+ return -1;
+ }
+ if (soname)
+ sprintf(soname, "libfusemod_%s.so", module);
+
+ res = fuse_load_so_name(soname);
+ free(soname);
+ return res;
+}
+
+static struct fuse_module *fuse_find_module(const char *module)
+{
+ struct fuse_module *m;
+ for (m = fuse_modules; m; m = m->next) {
+ if (strcmp(module, m->name) == 0) {
+ m->ctr++;
+ break;
+ }
+ }
+ return m;
+}
+
+static struct fuse_module *fuse_get_module(const char *module)
+{
+ struct fuse_module *m;
+
+ pthread_mutex_lock(&fuse_context_lock);
+ m = fuse_find_module(module);
+ if (!m) {
+ int err = fuse_load_so_module(module);
+ if (!err)
+ m = fuse_find_module(module);
+ }
+ pthread_mutex_unlock(&fuse_context_lock);
+ return m;
+}
+
+static void fuse_put_module(struct fuse_module *m)
+{
+ pthread_mutex_lock(&fuse_context_lock);
+ assert(m->ctr > 0);
+ m->ctr--;
+ if (!m->ctr && m->so) {
+ struct fusemod_so *so = m->so;
+ assert(so->ctr > 0);
+ so->ctr--;
+ if (!so->ctr) {
+ struct fuse_module **mp;
+ for (mp = &fuse_modules; *mp;) {
+ if ((*mp)->so == so)
+ *mp = (*mp)->next;
+ else
+ mp = &(*mp)->next;
+ }
+ dlclose(so->handle);
+ free(so);
+ }
+ }
+ pthread_mutex_unlock(&fuse_context_lock);
+}
static struct node *get_node_nocheck(struct fuse *f, fuse_ino_t nodeid)
{
@@ -184,7 +298,8 @@
f->id_table[hash] = node;
}
-static unsigned int name_hash(struct fuse *f, fuse_ino_t parent, const char *name)
+static unsigned int name_hash(struct fuse *f, fuse_ino_t parent,
+ const char *name)
{
unsigned int hash = *name;
@@ -510,131 +625,477 @@
fuse_do_prepare_interrupt(req, d);
}
-static int fuse_do_getattr(struct fuse *f, fuse_req_t req, const char *path,
- struct stat *buf)
-{
- int res;
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- res = f->op.getattr(path, buf);
- fuse_finish_interrupt(f, req, &d);
- return res;
-}
+#ifndef __FreeBSD__
-static int fuse_do_fgetattr(struct fuse *f, fuse_req_t req, const char *path,
- struct stat *buf, struct fuse_file_info *fi)
-{
- int res;
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- res = f->op.fgetattr(path, buf, fi);
- fuse_finish_interrupt(f, req, &d);
- return res;
-}
-
-static int fuse_do_rename(struct fuse *f, fuse_req_t req, const char *oldpath,
- const char *newpath)
-{
- int res;
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- res = f->op.rename(oldpath, newpath);
- fuse_finish_interrupt(f, req, &d);
- return res;
-}
-
-static int fuse_do_unlink(struct fuse *f, fuse_req_t req, const char *path)
-{
- int res;
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- res = f->op.unlink(path);
- fuse_finish_interrupt(f, req, &d);
- return res;
-}
-
-static void fuse_do_release(struct fuse *f, fuse_req_t req, const char *path,
+static int fuse_compat_open(struct fuse_fs *fs, const char *path,
struct fuse_file_info *fi)
{
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- f->op.release(path, fi);
- fuse_finish_interrupt(f, req, &d);
+ int err;
+ if (!fs->compat || fs->compat >= 25)
+ err = fs->op.open(path, fi);
+ else if (fs->compat == 22) {
+ struct fuse_file_info_compat tmp;
+ memcpy(&tmp, fi, sizeof(tmp));
+ err = ((struct fuse_operations_compat22 *) &fs->op)->open(path, &tmp);
+ memcpy(fi, &tmp, sizeof(tmp));
+ fi->fh = tmp.fh;
+ } else
+ err = ((struct fuse_operations_compat2 *) &fs->op)
+ ->open(path, fi->flags);
+ return err;
}
-static int fuse_do_opendir(struct fuse *f, fuse_req_t req, char *path,
- struct fuse_file_info *fi)
+static int fuse_compat_release(struct fuse_fs *fs, const char *path,
+ struct fuse_file_info *fi)
+{
+ if (!fs->compat || fs->compat >= 22)
+ return fs->op.release(path, fi);
+ else
+ return ((struct fuse_operations_compat2 *) &fs->op)
+ ->release(path, fi->flags);
+}
+
+static int fuse_compat_opendir(struct fuse_fs *fs, const char *path,
+ struct fuse_file_info *fi)
+{
+ if (!fs->compat || fs->compat >= 25)
+ return fs->op.opendir(path, fi);
+ else {
+ int err;
+ struct fuse_file_info_compat tmp;
+ memcpy(&tmp, fi, sizeof(tmp));
+ err = ((struct fuse_operations_compat22 *) &fs->op)
+ ->opendir(path, &tmp);
+ memcpy(fi, &tmp, sizeof(tmp));
+ fi->fh = tmp.fh;
+ return err;
+ }
+}
+
+static void convert_statfs_compat(struct fuse_statfs_compat1 *compatbuf,
+ struct statvfs *stbuf)
+{
+ stbuf->f_bsize = compatbuf->block_size;
+ stbuf->f_blocks = compatbuf->blocks;
+ stbuf->f_bfree = compatbuf->blocks_free;
+ stbuf->f_bavail = compatbuf->blocks_free;
+ stbuf->f_files = compatbuf->files;
+ stbuf->f_ffree = compatbuf->files_free;
+ stbuf->f_namemax = compatbuf->namelen;
+}
+
+static void convert_statfs_old(struct statfs *oldbuf, struct statvfs *stbuf)
+{
+ stbuf->f_bsize = oldbuf->f_bsize;
+ stbuf->f_blocks = oldbuf->f_blocks;
+ stbuf->f_bfree = oldbuf->f_bfree;
+ stbuf->f_bavail = oldbuf->f_bavail;
+ stbuf->f_files = oldbuf->f_files;
+ stbuf->f_ffree = oldbuf->f_ffree;
+ stbuf->f_namemax = oldbuf->f_namelen;
+}
+
+static int fuse_compat_statfs(struct fuse_fs *fs, const char *path,
+ struct statvfs *buf)
+{
+ int err;
+
+ if (!fs->compat || fs->compat >= 25) {
+ err = fs->op.statfs(fs->compat == 25 ? "/" : path, buf);
+ } else if (fs->compat > 11) {
+ struct statfs oldbuf;
+ err = ((struct fuse_operations_compat22 *) &fs->op)
+ ->statfs("/", &oldbuf);
+ if (!err)
+ convert_statfs_old(&oldbuf, buf);
+ } else {
+ struct fuse_statfs_compat1 compatbuf;
+ memset(&compatbuf, 0, sizeof(struct fuse_statfs_compat1));
+ err = ((struct fuse_operations_compat1 *) &fs->op)->statfs(&compatbuf);
+ if (!err)
+ convert_statfs_compat(&compatbuf, buf);
+ }
+ return err;
+}
+
+#else /* __FreeBSD__ */
+
+static inline int fuse_compat_open(struct fuse_fs *fs, char *path,
+ struct fuse_file_info *fi)
+{
+ return fs->op.open(path, fi);
+}
+
+static inline int fuse_compat_release(struct fuse_fs *fs, const char *path,
+ struct fuse_file_info *fi)
+{
+ return fs->op.release(path, fi);
+}
+
+static inline int fuse_compat_opendir(struct fuse_fs *fs, const char *path,
+ struct fuse_file_info *fi)
+{
+ return fs->op.opendir(path, fi);
+}
+
+static inline int fuse_compat_statfs(struct fuse_fs *fs, const char *path,
+ struct statvfs *buf)
+{
+ return fs->op.statfs(fs->compat == 25 ? "/" : path, buf);
+}
+
+#endif /* __FreeBSD__ */
+
+int fuse_fs_getattr(struct fuse_fs *fs, const char *path, struct stat *buf)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.getattr)
+ return fs->op.getattr(path, buf);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_fgetattr(struct fuse_fs *fs, const char *path, struct stat *buf,
+ struct fuse_file_info *fi)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.fgetattr)
+ return fs->op.fgetattr(path, buf, fi);
+ else if (fs->op.getattr)
+ return fs->op.getattr(path, buf);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_rename(struct fuse_fs *fs, const char *oldpath,
+ const char *newpath)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.rename)
+ return fs->op.rename(oldpath, newpath);
+ else
+ return -ENOSYS;
+}
+
+
+int fuse_fs_unlink(struct fuse_fs *fs, const char *path)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.unlink)
+ return fs->op.unlink(path);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_rmdir(struct fuse_fs *fs, const char *path)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.rmdir)
+ return fs->op.rmdir(path);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_symlink(struct fuse_fs *fs, const char *linkname, const char *path)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.symlink)
+ return fs->op.symlink(linkname, path);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_link(struct fuse_fs *fs, const char *oldpath, const char *newpath)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.link)
+ return fs->op.link(oldpath, newpath);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_release(struct fuse_fs *fs, const char *path,
+ struct fuse_file_info *fi)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.release)
+ return fuse_compat_release(fs, path, fi);
+ else
+ return 0;
+}
+
+int fuse_fs_opendir(struct fuse_fs *fs, const char *path,
+ struct fuse_file_info *fi)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.opendir)
+ return fuse_compat_opendir(fs, path, fi);
+ else
+ return 0;
+}
+
+int fuse_fs_open(struct fuse_fs *fs, const char *path,
+ struct fuse_file_info *fi)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.open)
+ return fuse_compat_open(fs, path, fi);
+ else
+ return 0;
+}
+
+int fuse_fs_read(struct fuse_fs *fs, const char *path, char *buf, size_t size,
+ off_t off, struct fuse_file_info *fi)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.read)
+ return fs->op.read(path, buf, size, off, fi);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_write(struct fuse_fs *fs, const char *path, const char *buf,
+ size_t size, off_t off, struct fuse_file_info *fi)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.write)
+ return fs->op.write(path, buf, size, off, fi);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_fsync(struct fuse_fs *fs, const char *path, int datasync,
+ struct fuse_file_info *fi)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.fsync)
+ return fs->op.fsync(path, datasync, fi);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_fsyncdir(struct fuse_fs *fs, const char *path, int datasync,
+ struct fuse_file_info *fi)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.fsyncdir)
+ return fs->op.fsyncdir(path, datasync, fi);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_flush(struct fuse_fs *fs, const char *path,
+ struct fuse_file_info *fi)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.flush)
+ return fs->op.flush(path, fi);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_statfs(struct fuse_fs *fs, const char *path, struct statvfs *buf)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.statfs)
+ return fuse_compat_statfs(fs, path, buf);
+ else {
+ buf->f_namemax = 255;
+ buf->f_bsize = 512;
+ return 0;
+ }
+}
+
+int fuse_fs_releasedir(struct fuse_fs *fs, const char *path,
+ struct fuse_file_info *fi)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.releasedir)
+ return fs->op.releasedir(path, fi);
+ else
+ return 0;
+}
+
+static int fill_dir_old(struct fuse_dirhandle *dh, const char *name, int type,
+ ino_t ino)
{
int res;
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- res = f->op.opendir(path, fi);
- fuse_finish_interrupt(f, req, &d);
- return res;
+ struct stat stbuf;
+
+ memset(&stbuf, 0, sizeof(stbuf));
+ stbuf.st_mode = type << 12;
+ stbuf.st_ino = ino;
+
+ res = dh->filler(dh->buf, name, &stbuf, 0);
+ return res ? -ENOMEM : 0;
}
-static int fuse_do_open(struct fuse *f, fuse_req_t req, char *path,
- struct fuse_file_info *fi)
+int fuse_fs_readdir(struct fuse_fs *fs, const char *path, void *buf,
+ fuse_fill_dir_t filler, off_t off,
+ struct fuse_file_info *fi)
{
- int res;
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- res = f->op.open(path, fi);
- fuse_finish_interrupt(f, req, &d);
- return res;
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.readdir)
+ return fs->op.readdir(path, buf, filler, off, fi);
+ else if (fs->op.getdir) {
+ struct fuse_dirhandle dh;
+ dh.filler = filler;
+ dh.buf = buf;
+ return fs->op.getdir(path, &dh, fill_dir_old);
+ } else
+ return -ENOSYS;
}
-static int fuse_do_flush(struct fuse *f, fuse_req_t req, const char *path,
- struct fuse_file_info *fi)
+int fuse_fs_create(struct fuse_fs *fs, const char *path, mode_t mode,
+ struct fuse_file_info *fi)
{
- int res;
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- res = f->op.flush(path, fi);
- fuse_finish_interrupt(f, req, &d);
- return res;
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.create)
+ return fs->op.create(path, mode, fi);
+ else
+ return -ENOSYS;
}
-static int fuse_do_statfs(struct fuse *f, fuse_req_t req, const char *path,
- struct statvfs *buf)
+int fuse_fs_lock(struct fuse_fs *fs, const char *path,
+ struct fuse_file_info *fi, int cmd, struct flock *lock)
{
- int res;
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- res = f->op.statfs(path, buf);
- fuse_finish_interrupt(f, req, &d);
- return res;
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.lock)
+ return fs->op.lock(path, fi, cmd, lock);
+ else
+ return -ENOSYS;
}
-static void fuse_do_releasedir(struct fuse *f, fuse_req_t req,
- const char *path, struct fuse_file_info *fi)
+int fuse_fs_chown(struct fuse_fs *fs, const char *path, uid_t uid, gid_t gid)
{
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- f->op.releasedir(path, fi);
- fuse_finish_interrupt(f, req, &d);
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.chown)
+ return fs->op.chown(path, uid, gid);
+ else
+ return -ENOSYS;
}
-static int fuse_do_create(struct fuse *f, fuse_req_t req, const char *path,
- mode_t mode, struct fuse_file_info *fi)
+int fuse_fs_truncate(struct fuse_fs *fs, const char *path, off_t size)
{
- int res;
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- res = f->op.create(path, mode, fi);
- fuse_finish_interrupt(f, req, &d);
- return res;
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.truncate)
+ return fs->op.truncate(path, size);
+ else
+ return -ENOSYS;
}
-static int fuse_do_lock(struct fuse *f, fuse_req_t req, const char *path,
- struct fuse_file_info *fi, int cmd, struct flock *lock)
+int fuse_fs_ftruncate(struct fuse_fs *fs, const char *path, off_t size,
+ struct fuse_file_info *fi)
{
- int res;
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- res = f->op.lock(path, fi, cmd, lock);
- fuse_finish_interrupt(f, req, &d);
- return res;
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.ftruncate)
+ return fs->op.ftruncate(path, size, fi);
+ else if (fs->op.truncate)
+ return fs->op.truncate(path, size);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_utimens(struct fuse_fs *fs, const char *path,
+ const struct timespec tv[2])
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.utimens)
+ return fs->op.utimens(path, tv);
+ else if(fs->op.utime) {
+ struct utimbuf buf;
+ buf.actime = tv[0].tv_sec;
+ buf.modtime = tv[1].tv_sec;
+ return fs->op.utime(path, &buf);
+ } else
+ return -ENOSYS;
+}
+
+int fuse_fs_access(struct fuse_fs *fs, const char *path, int mask)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.access)
+ return fs->op.access(path, mask);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_readlink(struct fuse_fs *fs, const char *path, char *buf,
+ size_t len)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.readlink)
+ return fs->op.readlink(path, buf, len);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_mknod(struct fuse_fs *fs, const char *path, mode_t mode,
+ dev_t rdev)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.mknod)
+ return fs->op.mknod(path, mode, rdev);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_mkdir(struct fuse_fs *fs, const char *path, mode_t mode)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.mkdir)
+ return fs->op.mkdir(path, mode);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_setxattr(struct fuse_fs *fs, const char *path, const char *name,
+ const char *value, size_t size, int flags)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.setxattr)
+ return fs->op.setxattr(path, name, value, size, flags);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_getxattr(struct fuse_fs *fs, const char *path, const char *name,
+ char *value, size_t size)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.getxattr)
+ return fs->op.getxattr(path, name, value, size);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_listxattr(struct fuse_fs *fs, const char *path, char *list,
+ size_t size)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.listxattr)
+ return fs->op.listxattr(path, list, size);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_bmap(struct fuse_fs *fs, const char *path, size_t blocksize,
+ uint64_t *idx)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.bmap)
+ return fs->op.bmap(path, blocksize, idx);
+ else
+ return -ENOSYS;
+}
+
+int fuse_fs_removexattr(struct fuse_fs *fs, const char *path, const char *name)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.removexattr)
+ return fs->op.removexattr(path, name);
+ else
+ return -ENOSYS;
}
static int is_open(struct fuse *f, fuse_ino_t dir, const char *name)
@@ -649,8 +1110,8 @@
return isopen;
}
-static char *hidden_name(struct fuse *f, fuse_req_t req, fuse_ino_t dir,
- const char *oldname, char *newname, size_t bufsize)
+static char *hidden_name(struct fuse *f, fuse_ino_t dir, const char *oldname,
+ char *newname, size_t bufsize)
{
struct stat buf;
struct node *node;
@@ -659,9 +1120,6 @@
int res;
int failctr = 10;
- if (!f->op.getattr)
- return NULL;
-
do {
pthread_mutex_lock(&f->lock);
node = lookup_node(f, dir, oldname);
@@ -681,51 +1139,36 @@
if (!newpath)
break;
- res = fuse_do_getattr(f, req, newpath, &buf);
- if (res != 0)
+ res = fuse_fs_getattr(f->fs, newpath, &buf);
+ if (res == -ENOENT)
break;
free(newpath);
newpath = NULL;
- } while(--failctr);
+ } while(res == 0 && --failctr);
return newpath;
}
-static int hide_node(struct fuse *f, fuse_req_t req, const char *oldpath,
+static int hide_node(struct fuse *f, const char *oldpath,
fuse_ino_t dir, const char *oldname)
{
char newname[64];
char *newpath;
int err = -EBUSY;
- if (f->op.rename && f->op.unlink) {
- newpath = hidden_name(f, req, dir, oldname, newname, sizeof(newname));
- if (newpath) {
- err = fuse_do_rename(f, req, oldpath, newpath);
- if (!err)
- err = rename_node(f, dir, oldname, dir, newname, 1);
- free(newpath);
- }
+ newpath = hidden_name(f, dir, oldname, newname, sizeof(newname));
+ if (newpath) {
+ err = fuse_fs_rename(f->fs, oldpath, newpath);
+ if (!err)
+ err = rename_node(f, dir, oldname, dir, newname, 1);
+ free(newpath);
}
return err;
}
static int mtime_eq(const struct stat *stbuf, const struct timespec *ts)
{
- return stbuf->st_mtime == ts->tv_sec
-#ifdef FUSE_STAT_HAS_NANOSEC
- && ST_MTIM(stbuf).tv_nsec == ts->tv_nsec
-#endif
- ;
-}
-
-static void mtime_set(const struct stat *stbuf, struct timespec *ts)
-{
-#ifdef FUSE_STAT_HAS_NANOSEC
- *ts = ST_MTIM(stbuf);
-#else
- ts->tv_sec = stbuf->st_mtime;
-#endif
+ return stbuf->st_mtime == ts->tv_sec && ST_MTIM_NSEC(stbuf) == ts->tv_nsec;
}
#ifndef CLOCK_MONOTONIC
@@ -751,22 +1194,23 @@
if (node->cache_valid && (!mtime_eq(stbuf, &node->mtime) ||
stbuf->st_size != node->size))
node->cache_valid = 0;
- mtime_set(stbuf, &node->mtime);
+ node->mtime.tv_sec = stbuf->st_mtime;
+ node->mtime.tv_nsec = ST_MTIM_NSEC(stbuf);
node->size = stbuf->st_size;
curr_time(&node->stat_updated);
}
-static int lookup_path(struct fuse *f, fuse_req_t req, fuse_ino_t nodeid,
+static int lookup_path(struct fuse *f, fuse_ino_t nodeid,
const char *name, const char *path,
struct fuse_entry_param *e, struct fuse_file_info *fi)
{
int res;
memset(e, 0, sizeof(struct fuse_entry_param));
- if (fi && f->op.fgetattr)
- res = fuse_do_fgetattr(f, req, path, &e->attr, fi);
+ if (fi)
+ res = fuse_fs_fgetattr(f->fs, path, &e->attr, fi);
else
- res = fuse_do_getattr(f, req, path, &e->attr);
+ res = fuse_fs_getattr(f->fs, path, &e->attr);
if (res == 0) {
struct node *node;
@@ -855,7 +1299,6 @@
c->ctx.uid = ctx->uid;
c->ctx.gid = ctx->gid;
c->ctx.pid = ctx->pid;
- c->ctx.private_data = c->ctx.fuse->user_data;
return c->ctx.fuse;
}
@@ -876,33 +1319,46 @@
reply_err(req, err);
}
-static void fuse_data_init(void *data, struct fuse_conn_info *conn)
+void fuse_fs_init(struct fuse_fs *fs, struct fuse_conn_info *conn)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.init)
+ fs->user_data = fs->op.init(conn);
+}
+
+static void fuse_lib_init(void *data, struct fuse_conn_info *conn)
{
struct fuse *f = (struct fuse *) data;
struct fuse_context_i *c = fuse_get_context_internal();
memset(c, 0, sizeof(*c));
c->ctx.fuse = f;
- c->ctx.private_data = f->user_data;
-
- if (f->op.init)
- f->user_data = f->op.init(conn);
+ fuse_fs_init(f->fs, conn);
}
-static void fuse_data_destroy(void *data)
+void fuse_fs_destroy(struct fuse_fs *fs)
+{
+ fuse_get_context()->private_data = fs->user_data;
+ if (fs->op.destroy)
+ fs->op.destroy(fs->user_data);
+ if (fs->m)
+ fuse_put_module(fs->m);
+ free(fs);
+}
+
+static void fuse_lib_destroy(void *data)
{
struct fuse *f = (struct fuse *) data;
struct fuse_context_i *c = fuse_get_context_internal();
memset(c, 0, sizeof(*c));
c->ctx.fuse = f;
- c->ctx.private_data = f->user_data;
-
- if (f->op.destroy)
- f->op.destroy(f->user_data);
+ fuse_fs_destroy(f->fs);
+ f->fs = NULL;
}
-static void fuse_lookup(fuse_req_t req, fuse_ino_t parent, const char *name)
+static void fuse_lib_lookup(fuse_req_t req, fuse_ino_t parent,
+ const char *name)
{
struct fuse *f = req_fuse_prepare(req);
struct fuse_entry_param e;
@@ -913,26 +1369,27 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path_name(f, parent, name);
if (path != NULL) {
+ struct fuse_intr_data d;
if (f->conf.debug) {
printf("LOOKUP %s\n", path);
fflush(stdout);
}
- err = -ENOSYS;
- if (f->op.getattr) {
- err = lookup_path(f, req, parent, name, path, &e, NULL);
- if (err == -ENOENT && f->conf.negative_timeout != 0.0) {
- e.ino = 0;
- e.entry_timeout = f->conf.negative_timeout;
- err = 0;
- }
+ fuse_prepare_interrupt(f, req, &d);
+ err = lookup_path(f, parent, name, path, &e, NULL);
+ if (err == -ENOENT && f->conf.negative_timeout != 0.0) {
+ e.ino = 0;
+ e.entry_timeout = f->conf.negative_timeout;
+ err = 0;
}
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
reply_entry(req, &e, err);
}
-static void fuse_forget(fuse_req_t req, fuse_ino_t ino, unsigned long nlookup)
+static void fuse_lib_forget(fuse_req_t req, fuse_ino_t ino,
+ unsigned long nlookup)
{
struct fuse *f = req_fuse(req);
if (f->conf.debug) {
@@ -943,8 +1400,8 @@
fuse_reply_none(req);
}
-static void fuse_getattr(fuse_req_t req, fuse_ino_t ino,
- struct fuse_file_info *fi)
+static void fuse_lib_getattr(fuse_req_t req, fuse_ino_t ino,
+ struct fuse_file_info *fi)
{
struct fuse *f = req_fuse_prepare(req);
struct stat buf;
@@ -958,9 +1415,10 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path(f, ino);
if (path != NULL) {
- err = -ENOSYS;
- if (f->op.getattr)
- err = fuse_do_getattr(f, req, path, &buf);
+ struct fuse_intr_data d;
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_getattr(f->fs, path, &buf);
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
@@ -976,94 +1434,16 @@
reply_err(req, err);
}
-static int do_chmod(struct fuse *f, fuse_req_t req, const char *path,
- struct stat *attr)
+int fuse_fs_chmod(struct fuse_fs *fs, const char *path, mode_t mode)
{
- int err;
-
- err = -ENOSYS;
- if (f->op.chmod) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.chmod(path, attr->st_mode);
- fuse_finish_interrupt(f, req, &d);
- }
-
- return err;
+ if (fs->op.chmod)
+ return fs->op.chmod(path, mode);
+ else
+ return -ENOSYS;
}
-static int do_chown(struct fuse *f, fuse_req_t req, const char *path,
- struct stat *attr, int valid)
-{
- int err;
- uid_t uid = (valid & FUSE_SET_ATTR_UID) ? attr->st_uid : (uid_t) -1;
- gid_t gid = (valid & FUSE_SET_ATTR_GID) ? attr->st_gid : (gid_t) -1;
-
- err = -ENOSYS;
- if (f->op.chown) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.chown(path, uid, gid);
- fuse_finish_interrupt(f, req, &d);
- }
-
- return err;
-}
-
-static int do_truncate(struct fuse *f, fuse_req_t req, const char *path,
- struct stat *attr, struct fuse_file_info *fi)
-{
- int err;
- struct fuse_intr_data d;
-
- err = -ENOSYS;
- if (fi && f->op.ftruncate) {
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.ftruncate(path, attr->st_size, fi);
- fuse_finish_interrupt(f, req, &d);
- } else if (f->op.truncate) {
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.truncate(path, attr->st_size);
- fuse_finish_interrupt(f, req, &d);
- }
- return err;
-}
-
-static int do_utimens(struct fuse *f, fuse_req_t req, const char *path,
- struct stat *attr)
-{
- int err;
- struct fuse_intr_data d;
-
- err = -ENOSYS;
- if (f->op.utimens) {
- struct timespec tv[2];
-#ifdef FUSE_STAT_HAS_NANOSEC
- tv[0] = ST_ATIM(attr);
- tv[1] = ST_MTIM(attr);
-#else
- tv[0].tv_sec = attr->st_atime;
- tv[0].tv_nsec = 0;
- tv[1].tv_sec = attr->st_mtime;
- tv[1].tv_nsec = 0;
-#endif
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.utimens(path, tv);
- fuse_finish_interrupt(f, req, &d);
- } else if (f->op.utime) {
- struct utimbuf buf;
- buf.actime = attr->st_atime;
- buf.modtime = attr->st_mtime;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.utime(path, &buf);
- fuse_finish_interrupt(f, req, &d);
- }
-
- return err;
-}
-
-static void fuse_setattr(fuse_req_t req, fuse_ino_t ino, struct stat *attr,
- int valid, struct fuse_file_info *fi)
+static void fuse_lib_setattr(fuse_req_t req, fuse_ino_t ino, struct stat *attr,
+ int valid, struct fuse_file_info *fi)
{
struct fuse *f = req_fuse_prepare(req);
struct stat buf;
@@ -1074,20 +1454,36 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path(f, ino);
if (path != NULL) {
- err = -ENOSYS;
- if (f->op.getattr) {
- err = 0;
- if (!err && (valid & FUSE_SET_ATTR_MODE))
- err = do_chmod(f, req, path, attr);
- if (!err && (valid & (FUSE_SET_ATTR_UID | FUSE_SET_ATTR_GID)))
- err = do_chown(f, req, path, attr, valid);
- if (!err && (valid & FUSE_SET_ATTR_SIZE))
- err = do_truncate(f, req, path, attr, fi);
- if (!err && (valid & (FUSE_SET_ATTR_ATIME | FUSE_SET_ATTR_MTIME)) == (FUSE_SET_ATTR_ATIME | FUSE_SET_ATTR_MTIME))
- err = do_utimens(f, req, path, attr);
- if (!err)
- err = fuse_do_getattr(f, req, path, &buf);
+ struct fuse_intr_data d;
+ fuse_prepare_interrupt(f, req, &d);
+ err = 0;
+ if (!err && (valid & FUSE_SET_ATTR_MODE))
+ err = fuse_fs_chmod(f->fs, path, attr->st_mode);
+ if (!err && (valid & (FUSE_SET_ATTR_UID | FUSE_SET_ATTR_GID))) {
+ uid_t uid =
+ (valid & FUSE_SET_ATTR_UID) ? attr->st_uid : (uid_t) -1;
+ gid_t gid =
+ (valid & FUSE_SET_ATTR_GID) ? attr->st_gid : (gid_t) -1;
+ err = fuse_fs_chown(f->fs, path, uid, gid);
}
+ if (!err && (valid & FUSE_SET_ATTR_SIZE)) {
+ if (fi)
+ err = fuse_fs_ftruncate(f->fs, path, attr->st_size, fi);
+ else
+ err = fuse_fs_truncate(f->fs, path, attr->st_size);
+ }
+ if (!err && (valid & (FUSE_SET_ATTR_ATIME | FUSE_SET_ATTR_MTIME)) ==
+ (FUSE_SET_ATTR_ATIME | FUSE_SET_ATTR_MTIME)) {
+ struct timespec tv[2];
+ tv[0].tv_sec = attr->st_atime;
+ tv[0].tv_nsec = ST_ATIM_NSEC(attr);
+ tv[1].tv_sec = attr->st_mtime;
+ tv[1].tv_nsec = ST_MTIM_NSEC(attr);
+ err = fuse_fs_utimens(f->fs, path, tv);
+ }
+ if (!err)
+ err = fuse_fs_getattr(f->fs, path, &buf);
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
@@ -1103,7 +1499,7 @@
reply_err(req, err);
}
-static void fuse_access(fuse_req_t req, fuse_ino_t ino, int mask)
+static void fuse_lib_access(fuse_req_t req, fuse_ino_t ino, int mask)
{
struct fuse *f = req_fuse_prepare(req);
char *path;
@@ -1113,24 +1509,21 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path(f, ino);
if (path != NULL) {
+ struct fuse_intr_data d;
if (f->conf.debug) {
printf("ACCESS %s 0%o\n", path, mask);
fflush(stdout);
}
- err = -ENOSYS;
- if (f->op.access) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.access(path, mask);
- fuse_finish_interrupt(f, req, &d);
- }
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_access(f->fs, path, mask);
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
reply_err(req, err);
}
-static void fuse_readlink(fuse_req_t req, fuse_ino_t ino)
+static void fuse_lib_readlink(fuse_req_t req, fuse_ino_t ino)
{
struct fuse *f = req_fuse_prepare(req);
char linkname[PATH_MAX + 1];
@@ -1141,13 +1534,10 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path(f, ino);
if (path != NULL) {
- err = -ENOSYS;
- if (f->op.readlink) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.readlink(path, linkname, sizeof(linkname));
- fuse_finish_interrupt(f, req, &d);
- }
+ struct fuse_intr_data d;
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_readlink(f->fs, path, linkname, sizeof(linkname));
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
@@ -1158,8 +1548,8 @@
reply_err(req, err);
}
-static void fuse_mknod(fuse_req_t req, fuse_ino_t parent, const char *name,
- mode_t mode, dev_t rdev)
+static void fuse_lib_mknod(fuse_req_t req, fuse_ino_t parent, const char *name,
+ mode_t mode, dev_t rdev)
{
struct fuse *f = req_fuse_prepare(req);
struct fuse_entry_param e;
@@ -1169,39 +1559,39 @@
err = -ENOENT;
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path_name(f, parent, name);
- if (path != NULL) {
+ if (path) {
+ struct fuse_intr_data d;
if (f->conf.debug) {
printf("MKNOD %s\n", path);
fflush(stdout);
}
+ fuse_prepare_interrupt(f, req, &d);
err = -ENOSYS;
- if (S_ISREG(mode) && f->op.create && f->op.getattr) {
+ if (S_ISREG(mode)) {
struct fuse_file_info fi;
memset(&fi, 0, sizeof(fi));
fi.flags = O_CREAT | O_EXCL | O_WRONLY;
- err = fuse_do_create(f, req, path, mode, &fi);
+ err = fuse_fs_create(f->fs, path, mode, &fi);
if (!err) {
- err = lookup_path(f, req, parent, name, path, &e, &fi);
- if (f->op.release)
- fuse_do_release(f, req, path, &fi);
+ err = lookup_path(f, parent, name, path, &e, &fi);
+ fuse_fs_release(f->fs, path, &fi);
}
- } else if (f->op.mknod && f->op.getattr) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.mknod(path, mode, rdev);
- fuse_finish_interrupt(f, req, &d);
- if (!err)
- err = lookup_path(f, req, parent, name, path, &e, NULL);
}
+ if (err == -ENOSYS) {
+ err = fuse_fs_mknod(f->fs, path, mode, rdev);
+ if (!err)
+ err = lookup_path(f, parent, name, path, &e, NULL);
+ }
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
reply_entry(req, &e, err);
}
-static void fuse_mkdir(fuse_req_t req, fuse_ino_t parent, const char *name,
- mode_t mode)
+static void fuse_lib_mkdir(fuse_req_t req, fuse_ino_t parent, const char *name,
+ mode_t mode)
{
struct fuse *f = req_fuse_prepare(req);
struct fuse_entry_param e;
@@ -1212,26 +1602,24 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path_name(f, parent, name);
if (path != NULL) {
+ struct fuse_intr_data d;
if (f->conf.debug) {
printf("MKDIR %s\n", path);
fflush(stdout);
}
- err = -ENOSYS;
- if (f->op.mkdir && f->op.getattr) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.mkdir(path, mode);
- fuse_finish_interrupt(f, req, &d);
- if (!err)
- err = lookup_path(f, req, parent, name, path, &e, NULL);
- }
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_mkdir(f->fs, path, mode);
+ if (!err)
+ err = lookup_path(f, parent, name, path, &e, NULL);
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
reply_entry(req, &e, err);
}
-static void fuse_unlink(fuse_req_t req, fuse_ino_t parent, const char *name)
+static void fuse_lib_unlink(fuse_req_t req, fuse_ino_t parent,
+ const char *name)
{
struct fuse *f = req_fuse_prepare(req);
char *path;
@@ -1241,27 +1629,27 @@
pthread_rwlock_wrlock(&f->tree_lock);
path = get_path_name(f, parent, name);
if (path != NULL) {
+ struct fuse_intr_data d;
if (f->conf.debug) {
printf("UNLINK %s\n", path);
fflush(stdout);
}
- err = -ENOSYS;
- if (f->op.unlink) {
- if (!f->conf.hard_remove && is_open(f, parent, name))
- err = hide_node(f, req, path, parent, name);
- else {
- err = fuse_do_unlink(f, req, path);
- if (!err)
- remove_node(f, parent, name);
- }
+ fuse_prepare_interrupt(f, req, &d);
+ if (!f->conf.hard_remove && is_open(f, parent, name))
+ err = hide_node(f, path, parent, name);
+ else {
+ err = fuse_fs_unlink(f->fs, path);
+ if (!err)
+ remove_node(f, parent, name);
}
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
reply_err(req, err);
}
-static void fuse_rmdir(fuse_req_t req, fuse_ino_t parent, const char *name)
+static void fuse_lib_rmdir(fuse_req_t req, fuse_ino_t parent, const char *name)
{
struct fuse *f = req_fuse_prepare(req);
char *path;
@@ -1271,27 +1659,24 @@
pthread_rwlock_wrlock(&f->tree_lock);
path = get_path_name(f, parent, name);
if (path != NULL) {
+ struct fuse_intr_data d;
if (f->conf.debug) {
printf("RMDIR %s\n", path);
fflush(stdout);
}
- err = -ENOSYS;
- if (f->op.rmdir) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.rmdir(path);
- fuse_finish_interrupt(f, req, &d);
- if (!err)
- remove_node(f, parent, name);
- }
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_rmdir(f->fs, path);
+ fuse_finish_interrupt(f, req, &d);
+ if (!err)
+ remove_node(f, parent, name);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
reply_err(req, err);
}
-static void fuse_symlink(fuse_req_t req, const char *linkname,
- fuse_ino_t parent, const char *name)
+static void fuse_lib_symlink(fuse_req_t req, const char *linkname,
+ fuse_ino_t parent, const char *name)
{
struct fuse *f = req_fuse_prepare(req);
struct fuse_entry_param e;
@@ -1302,27 +1687,25 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path_name(f, parent, name);
if (path != NULL) {
+ struct fuse_intr_data d;
if (f->conf.debug) {
printf("SYMLINK %s\n", path);
fflush(stdout);
}
- err = -ENOSYS;
- if (f->op.symlink && f->op.getattr) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.symlink(linkname, path);
- fuse_finish_interrupt(f, req, &d);
- if (!err)
- err = lookup_path(f, req, parent, name, path, &e, NULL);
- }
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_symlink(f->fs, linkname, path);
+ if (!err)
+ err = lookup_path(f, parent, name, path, &e, NULL);
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
reply_entry(req, &e, err);
}
-static void fuse_rename(fuse_req_t req, fuse_ino_t olddir, const char *oldname,
- fuse_ino_t newdir, const char *newname)
+static void fuse_lib_rename(fuse_req_t req, fuse_ino_t olddir,
+ const char *oldname, fuse_ino_t newdir,
+ const char *newname)
{
struct fuse *f = req_fuse_prepare(req);
char *oldpath;
@@ -1335,22 +1718,21 @@
if (oldpath != NULL) {
newpath = get_path_name(f, newdir, newname);
if (newpath != NULL) {
+ struct fuse_intr_data d;
if (f->conf.debug) {
printf("RENAME %s -> %s\n", oldpath, newpath);
fflush(stdout);
}
- err = -ENOSYS;
- if (f->op.rename) {
- err = 0;
- if (!f->conf.hard_remove &&
- is_open(f, newdir, newname))
- err = hide_node(f, req, newpath, newdir, newname);
- if (!err) {
- err = fuse_do_rename(f, req, oldpath, newpath);
- if (!err)
- err = rename_node(f, olddir, oldname, newdir, newname, 0);
- }
+ err = 0;
+ fuse_prepare_interrupt(f, req, &d);
+ if (!f->conf.hard_remove && is_open(f, newdir, newname))
+ err = hide_node(f, newpath, newdir, newname);
+ if (!err) {
+ err = fuse_fs_rename(f->fs, oldpath, newpath);
+ if (!err)
+ err = rename_node(f, olddir, oldname, newdir, newname, 0);
}
+ fuse_finish_interrupt(f, req, &d);
free(newpath);
}
free(oldpath);
@@ -1359,8 +1741,8 @@
reply_err(req, err);
}
-static void fuse_link(fuse_req_t req, fuse_ino_t ino, fuse_ino_t newparent,
- const char *newname)
+static void fuse_lib_link(fuse_req_t req, fuse_ino_t ino, fuse_ino_t newparent,
+ const char *newname)
{
struct fuse *f = req_fuse_prepare(req);
struct fuse_entry_param e;
@@ -1374,20 +1756,16 @@
if (oldpath != NULL) {
newpath = get_path_name(f, newparent, newname);
if (newpath != NULL) {
+ struct fuse_intr_data d;
if (f->conf.debug) {
printf("LINK %s\n", newpath);
fflush(stdout);
}
- err = -ENOSYS;
- if (f->op.link && f->op.getattr) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.link(oldpath, newpath);
- fuse_finish_interrupt(f, req, &d);
- if (!err)
- err = lookup_path(f, req, newparent, newname, newpath, &e,
- NULL);
- }
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_link(f->fs, oldpath, newpath);
+ if (!err)
+ err = lookup_path(f, newparent, newname, newpath, &e, NULL);
+ fuse_finish_interrupt(f, req, &d);
free(newpath);
}
free(oldpath);
@@ -1396,10 +1774,34 @@
reply_entry(req, &e, err);
}
-static void fuse_create(fuse_req_t req, fuse_ino_t parent, const char *name,
- mode_t mode, struct fuse_file_info *fi)
+static void fuse_do_release(struct fuse *f, fuse_ino_t ino, const char *path,
+ struct fuse_file_info *fi)
+{
+ struct node *node;
+ int unlink_hidden = 0;
+
+ fuse_fs_release(f->fs, path ? path : "-", fi);
+
+ pthread_mutex_lock(&f->lock);
+ node = get_node(f, ino);
+ assert(node->open_count > 0);
+ --node->open_count;
+ if (node->is_hidden && !node->open_count) {
+ unlink_hidden = 1;
+ node->is_hidden = 0;
+ }
+ pthread_mutex_unlock(&f->lock);
+
+ if(unlink_hidden && path)
+ fuse_fs_unlink(f->fs, path);
+}
+
+static void fuse_lib_create(fuse_req_t req, fuse_ino_t parent,
+ const char *name, mode_t mode,
+ struct fuse_file_info *fi)
{
struct fuse *f = req_fuse_prepare(req);
+ struct fuse_intr_data d;
struct fuse_entry_param e;
char *path;
int err;
@@ -1407,53 +1809,48 @@
err = -ENOENT;
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path_name(f, parent, name);
- if (path != NULL) {
- err = -ENOSYS;
- if (f->op.create && f->op.getattr) {
- err = fuse_do_create(f, req, path, mode, fi);
- if (!err) {
- if (f->conf.debug) {
- printf("CREATE[%llu] flags: 0x%x %s\n",
- (unsigned long long) fi->fh, fi->flags, path);
- fflush(stdout);
- }
- err = lookup_path(f, req, parent, name, path, &e, fi);
- if (err) {
- if (f->op.release)
- fuse_do_release(f, req, path, fi);
- } else if (!S_ISREG(e.attr.st_mode)) {
- err = -EIO;
- if (f->op.release)
- fuse_do_release(f, req, path, fi);
- forget_node(f, e.ino, 1);
- }
+ if (path) {
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_create(f->fs, path, mode, fi);
+ if (!err) {
+ err = lookup_path(f, parent, name, path, &e, fi);
+ if (err)
+ fuse_fs_release(f->fs, path, fi);
+ else if (!S_ISREG(e.attr.st_mode)) {
+ err = -EIO;
+ fuse_fs_release(f->fs, path, fi);
+ forget_node(f, e.ino, 1);
+ } else {
+ if (f->conf.direct_io)
+ fi->direct_io = 1;
+ if (f->conf.kernel_cache)
+ fi->keep_cache = 1;
+
}
}
+ fuse_finish_interrupt(f, req, &d);
}
-
if (!err) {
- if (f->conf.direct_io)
- fi->direct_io = 1;
- if (f->conf.kernel_cache)
- fi->keep_cache = 1;
-
pthread_mutex_lock(&f->lock);
+ get_node(f, e.ino)->open_count++;
+ pthread_mutex_unlock(&f->lock);
if (fuse_reply_create(req, &e, fi) == -ENOENT) {
/* The open syscall was interrupted, so it must be cancelled */
- if(f->op.release)
- fuse_do_release(f, req, path, fi);
- pthread_mutex_unlock(&f->lock);
+ fuse_prepare_interrupt(f, req, &d);
+ fuse_do_release(f, e.ino, path, fi);
+ fuse_finish_interrupt(f, req, &d);
forget_node(f, e.ino, 1);
- } else {
- struct node *node = get_node(f, e.ino);
- node->open_count ++;
- pthread_mutex_unlock(&f->lock);
+ } else if (f->conf.debug) {
+ printf(" CREATE[%llu] flags: 0x%x %s\n",
+ (unsigned long long) fi->fh, fi->flags, path);
+ fflush(stdout);
}
} else
reply_err(req, err);
if (path)
free(path);
+
pthread_rwlock_unlock(&f->tree_lock);
}
@@ -1464,10 +1861,13 @@
((double) t1->tv_nsec - (double) t2->tv_nsec) / 1000000000.0;
}
-static void open_auto_cache(struct fuse *f, fuse_req_t req, fuse_ino_t ino,
- const char *path, struct fuse_file_info *fi)
+static void open_auto_cache(struct fuse *f, fuse_ino_t ino, const char *path,
+ struct fuse_file_info *fi)
{
- struct node *node = get_node(f, ino);
+ struct node *node;
+
+ pthread_mutex_lock(&f->lock);
+ node = get_node(f, ino);
if (node->cache_valid) {
struct timespec now;
@@ -1475,12 +1875,9 @@
if (diff_timespec(&now, &node->stat_updated) > f->conf.ac_attr_timeout) {
struct stat stbuf;
int err;
-
- if (f->op.fgetattr)
- err = fuse_do_fgetattr(f, req, path, &stbuf, fi);
- else
- err = fuse_do_getattr(f, req, path, &stbuf);
-
+ pthread_mutex_unlock(&f->lock);
+ err = fuse_fs_fgetattr(f->fs, path, &stbuf, fi);
+ pthread_mutex_lock(&f->lock);
if (!err)
update_stat(node, &stbuf);
else
@@ -1491,47 +1888,48 @@
fi->keep_cache = 1;
node->cache_valid = 1;
+ pthread_mutex_unlock(&f->lock);
}
-static void fuse_open(fuse_req_t req, fuse_ino_t ino,
- struct fuse_file_info *fi)
+static void fuse_lib_open(fuse_req_t req, fuse_ino_t ino,
+ struct fuse_file_info *fi)
{
struct fuse *f = req_fuse_prepare(req);
+ struct fuse_intr_data d;
char *path = NULL;
int err = 0;
+ err = -ENOENT;
pthread_rwlock_rdlock(&f->tree_lock);
- if (f->op.open) {
- err = -ENOENT;
- path = get_path(f, ino);
- if (path != NULL)
- err = fuse_compat_open(f, req, path, fi);
+ path = get_path(f, ino);
+ if (path) {
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_open(f->fs, path, fi);
+ if (!err) {
+ if (f->conf.direct_io)
+ fi->direct_io = 1;
+ if (f->conf.kernel_cache)
+ fi->keep_cache = 1;
+
+ if (f->conf.auto_cache)
+ open_auto_cache(f, ino, path, fi);
+ }
+ fuse_finish_interrupt(f, req, &d);
}
if (!err) {
- if (f->conf.debug) {
- printf("OPEN[%llu] flags: 0x%x\n", (unsigned long long) fi->fh,
- fi->flags);
- fflush(stdout);
- }
-
- if (f->conf.direct_io)
- fi->direct_io = 1;
- if (f->conf.kernel_cache)
- fi->keep_cache = 1;
-
pthread_mutex_lock(&f->lock);
- if (f->conf.auto_cache)
- open_auto_cache(f, req, ino, path, fi);
-
+ get_node(f, ino)->open_count++;
+ pthread_mutex_unlock(&f->lock);
if (fuse_reply_open(req, fi) == -ENOENT) {
/* The open syscall was interrupted, so it must be cancelled */
- if(f->op.release && path != NULL)
- fuse_compat_release(f, req, path, fi);
- } else {
- struct node *node = get_node(f, ino);
- node->open_count ++;
+ fuse_prepare_interrupt(f, req, &d);
+ fuse_do_release(f, ino, path, fi);
+ fuse_finish_interrupt(f, req, &d);
+ } else if (f->conf.debug) {
+ printf("OPEN[%llu] flags: 0x%x %s\n",
+ (unsigned long long) fi->fh, fi->flags, path);
+ fflush(stdout);
}
- pthread_mutex_unlock(&f->lock);
} else
reply_err(req, err);
@@ -1540,8 +1938,8 @@
pthread_rwlock_unlock(&f->tree_lock);
}
-static void fuse_read(fuse_req_t req, fuse_ino_t ino, size_t size, off_t off,
- struct fuse_file_info *fi)
+static void fuse_lib_read(fuse_req_t req, fuse_ino_t ino, size_t size,
+ off_t off, struct fuse_file_info *fi)
{
struct fuse *f = req_fuse_prepare(req);
char *path;
@@ -1558,6 +1956,7 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path(f, ino);
if (path != NULL) {
+ struct fuse_intr_data d;
if (f->conf.debug) {
printf("READ[%llu] %lu bytes from %llu\n",
(unsigned long long) fi->fh, (unsigned long) size,
@@ -1565,13 +1964,9 @@
fflush(stdout);
}
- res = -ENOSYS;
- if (f->op.read) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- res = f->op.read(path, buf, size, off, fi);
- fuse_finish_interrupt(f, req, &d);
- }
+ fuse_prepare_interrupt(f, req, &d);
+ res = fuse_fs_read(f->fs, path, buf, size, off, fi);
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
@@ -1591,7 +1986,7 @@
free(buf);
}
-static void fuse_write(fuse_req_t req, fuse_ino_t ino, const char *buf,
+static void fuse_lib_write(fuse_req_t req, fuse_ino_t ino, const char *buf,
size_t size, off_t off, struct fuse_file_info *fi)
{
struct fuse *f = req_fuse_prepare(req);
@@ -1602,6 +1997,7 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path(f, ino);
if (path != NULL) {
+ struct fuse_intr_data d;
if (f->conf.debug) {
printf("WRITE%s[%llu] %lu bytes to %llu\n",
fi->writepage ? "PAGE" : "", (unsigned long long) fi->fh,
@@ -1609,13 +2005,9 @@
fflush(stdout);
}
- res = -ENOSYS;
- if (f->op.write) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- res = f->op.write(path, buf, size, off, fi);
- fuse_finish_interrupt(f, req, &d);
- }
+ fuse_prepare_interrupt(f, req, &d);
+ res = fuse_fs_write(f->fs, path, buf, size, off, fi);
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
@@ -1634,13 +2026,12 @@
reply_err(req, res);
}
-static void fuse_release(fuse_req_t req, fuse_ino_t ino,
- struct fuse_file_info *fi)
+static void fuse_lib_release(fuse_req_t req, fuse_ino_t ino,
+ struct fuse_file_info *fi)
{
struct fuse *f = req_fuse_prepare(req);
+ struct fuse_intr_data d;
char *path;
- struct node *node;
- int unlink_hidden = 0;
int err = 0;
pthread_rwlock_rdlock(&f->tree_lock);
@@ -1650,23 +2041,14 @@
(unsigned long long) fi->fh, fi->flags);
fflush(stdout);
}
- if (fi->flush && path && f->op.flush)
- err = fuse_do_flush(f, req, path, fi);
- if (f->op.release)
- fuse_compat_release(f, req, path, fi);
-
- pthread_mutex_lock(&f->lock);
- node = get_node(f, ino);
- assert(node->open_count > 0);
- --node->open_count;
- if (node->is_hidden && !node->open_count) {
- unlink_hidden = 1;
- node->is_hidden = 0;
+ fuse_prepare_interrupt(f, req, &d);
+ if (fi->flush && path) {
+ err = fuse_fs_flush(f->fs, path, fi);
+ if (err == -ENOSYS)
+ err = 0;
}
- pthread_mutex_unlock(&f->lock);
-
- if(unlink_hidden && path)
- fuse_do_unlink(f, req, path);
+ fuse_do_release(f, ino, path, fi);
+ fuse_finish_interrupt(f, req, &d);
if (path)
free(path);
@@ -1675,7 +2057,7 @@
reply_err(req, err);
}
-static void fuse_fsync(fuse_req_t req, fuse_ino_t ino, int datasync,
+static void fuse_lib_fsync(fuse_req_t req, fuse_ino_t ino, int datasync,
struct fuse_file_info *fi)
{
struct fuse *f = req_fuse_prepare(req);
@@ -1686,45 +2068,46 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path(f, ino);
if (path != NULL) {
+ struct fuse_intr_data d;
if (f->conf.debug) {
printf("FSYNC[%llu]\n", (unsigned long long) fi->fh);
fflush(stdout);
}
- err = -ENOSYS;
- if (f->op.fsync) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.fsync(path, datasync, fi);
- fuse_finish_interrupt(f, req, &d);
- }
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_fsync(f->fs, path, datasync, fi);
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
reply_err(req, err);
}
-static struct fuse_dirhandle *get_dirhandle(const struct fuse_file_info *llfi,
- struct fuse_file_info *fi)
+static struct fuse_dh *get_dirhandle(const struct fuse_file_info *llfi,
+ struct fuse_file_info *fi)
{
- struct fuse_dirhandle *dh = (struct fuse_dirhandle *) (uintptr_t) llfi->fh;
+ struct fuse_dh *dh = (struct fuse_dh *) (uintptr_t) llfi->fh;
memset(fi, 0, sizeof(struct fuse_file_info));
fi->fh = dh->fh;
fi->fh_old = dh->fh;
return dh;
}
-static void fuse_opendir(fuse_req_t req, fuse_ino_t ino,
+static void fuse_lib_opendir(fuse_req_t req, fuse_ino_t ino,
struct fuse_file_info *llfi)
{
struct fuse *f = req_fuse_prepare(req);
- struct fuse_dirhandle *dh;
+ struct fuse_intr_data d;
+ struct fuse_dh *dh;
+ struct fuse_file_info fi;
+ char *path;
+ int err;
- dh = (struct fuse_dirhandle *) malloc(sizeof(struct fuse_dirhandle));
+ dh = (struct fuse_dh *) malloc(sizeof(struct fuse_dh));
if (dh == NULL) {
reply_err(req, -ENOMEM);
return;
}
- memset(dh, 0, sizeof(struct fuse_dirhandle));
+ memset(dh, 0, sizeof(struct fuse_dh));
dh->fuse = f;
dh->contents = NULL;
dh->len = 0;
@@ -1734,43 +2117,36 @@
llfi->fh = (uintptr_t) dh;
- if (f->op.opendir) {
- struct fuse_file_info fi;
- char *path;
- int err;
+ memset(&fi, 0, sizeof(fi));
+ fi.flags = llfi->flags;
- memset(&fi, 0, sizeof(fi));
- fi.flags = llfi->flags;
-
- err = -ENOENT;
- pthread_rwlock_rdlock(&f->tree_lock);
- path = get_path(f, ino);
- if (path != NULL) {
- err = fuse_compat_opendir(f, req, path, &fi);
- dh->fh = fi.fh;
- }
- if (!err) {
- pthread_mutex_lock(&f->lock);
- if (fuse_reply_open(req, llfi) == -ENOENT) {
- /* The opendir syscall was interrupted, so it must be
- cancelled */
- if(f->op.releasedir)
- fuse_do_releasedir(f, req, path, &fi);
- pthread_mutex_destroy(&dh->lock);
- free(dh);
- }
- pthread_mutex_unlock(&f->lock);
- } else {
- reply_err(req, err);
+ err = -ENOENT;
+ pthread_rwlock_rdlock(&f->tree_lock);
+ path = get_path(f, ino);
+ if (path != NULL) {
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_opendir(f->fs, path, &fi);
+ fuse_finish_interrupt(f, req, &d);
+ dh->fh = fi.fh;
+ }
+ if (!err) {
+ if (fuse_reply_open(req, llfi) == -ENOENT) {
+ /* The opendir syscall was interrupted, so it must be cancelled */
+ fuse_prepare_interrupt(f, req, &d);
+ fuse_fs_releasedir(f->fs, path, &fi);
+ fuse_finish_interrupt(f, req, &d);
+ pthread_mutex_destroy(&dh->lock);
free(dh);
}
- free(path);
- pthread_rwlock_unlock(&f->tree_lock);
- } else
- fuse_reply_open(req, llfi);
+ } else {
+ reply_err(req, err);
+ free(dh);
+ }
+ free(path);
+ pthread_rwlock_unlock(&f->tree_lock);
}
-static int extend_contents(struct fuse_dirhandle *dh, unsigned minsize)
+static int extend_contents(struct fuse_dh *dh, unsigned minsize)
{
if (minsize > dh->size) {
char *newptr;
@@ -1791,9 +2167,10 @@
return 0;
}
-static int fill_dir_common(struct fuse_dirhandle *dh, const char *name,
- const struct stat *statp, off_t off)
+static int fill_dir(void *dh_, const char *name, const struct stat *statp,
+ off_t off)
{
+ struct fuse_dh *dh = (struct fuse_dh *) dh_;
struct stat stbuf;
size_t newlen;
@@ -1838,27 +2215,8 @@
return 0;
}
-static int fill_dir(void *buf, const char *name, const struct stat *stbuf,
- off_t off)
-{
- return fill_dir_common((struct fuse_dirhandle *) buf, name, stbuf, off);
-}
-
-static int fill_dir_old(struct fuse_dirhandle *dh, const char *name, int type,
- ino_t ino)
-{
- struct stat stbuf;
-
- memset(&stbuf, 0, sizeof(stbuf));
- stbuf.st_mode = type << 12;
- stbuf.st_ino = ino;
-
- fill_dir_common(dh, name, &stbuf, 0);
- return dh->error;
-}
-
static int readdir_fill(struct fuse *f, fuse_req_t req, fuse_ino_t ino,
- size_t size, off_t off, struct fuse_dirhandle *dh,
+ size_t size, off_t off, struct fuse_dh *dh,
struct fuse_file_info *fi)
{
int err = -ENOENT;
@@ -1866,23 +2224,16 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path(f, ino);
if (path != NULL) {
+ struct fuse_intr_data d;
+
dh->len = 0;
dh->error = 0;
dh->needlen = size;
dh->filled = 1;
dh->req = req;
- err = -ENOSYS;
- if (f->op.readdir) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.readdir(path, dh, fill_dir, off, fi);
- fuse_finish_interrupt(f, req, &d);
- } else if (f->op.getdir) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.getdir(path, dh, fill_dir_old);
- fuse_finish_interrupt(f, req, &d);
- }
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_readdir(f->fs, path, dh, fill_dir, off, fi);
+ fuse_finish_interrupt(f, req, &d);
dh->req = NULL;
if (!err)
err = dh->error;
@@ -1894,12 +2245,12 @@
return err;
}
-static void fuse_readdir(fuse_req_t req, fuse_ino_t ino, size_t size,
- off_t off, struct fuse_file_info *llfi)
+static void fuse_lib_readdir(fuse_req_t req, fuse_ino_t ino, size_t size,
+ off_t off, struct fuse_file_info *llfi)
{
struct fuse *f = req_fuse_prepare(req);
struct fuse_file_info fi;
- struct fuse_dirhandle *dh = get_dirhandle(llfi, &fi);
+ struct fuse_dh *dh = get_dirhandle(llfi, &fi);
pthread_mutex_lock(&dh->lock);
/* According to SUS, directory contents need to be refreshed on
@@ -1929,21 +2280,23 @@
pthread_mutex_unlock(&dh->lock);
}
-static void fuse_releasedir(fuse_req_t req, fuse_ino_t ino,
+static void fuse_lib_releasedir(fuse_req_t req, fuse_ino_t ino,
struct fuse_file_info *llfi)
{
struct fuse *f = req_fuse_prepare(req);
+ struct fuse_intr_data d;
struct fuse_file_info fi;
- struct fuse_dirhandle *dh = get_dirhandle(llfi, &fi);
- if (f->op.releasedir) {
- char *path;
+ struct fuse_dh *dh = get_dirhandle(llfi, &fi);
+ char *path;
- pthread_rwlock_rdlock(&f->tree_lock);
- path = get_path(f, ino);
- fuse_do_releasedir(f, req, path ? path : "-", &fi);
+ pthread_rwlock_rdlock(&f->tree_lock);
+ path = get_path(f, ino);
+ fuse_prepare_interrupt(f, req, &d);
+ fuse_fs_releasedir(f->fs, path ? path : "-", &fi);
+ fuse_finish_interrupt(f, req, &d);
+ if (path)
free(path);
- pthread_rwlock_unlock(&f->tree_lock);
- }
+ pthread_rwlock_unlock(&f->tree_lock);
pthread_mutex_lock(&dh->lock);
pthread_mutex_unlock(&dh->lock);
pthread_mutex_destroy(&dh->lock);
@@ -1952,7 +2305,7 @@
reply_err(req, 0);
}
-static void fuse_fsyncdir(fuse_req_t req, fuse_ino_t ino, int datasync,
+static void fuse_lib_fsyncdir(fuse_req_t req, fuse_ino_t ino, int datasync,
struct fuse_file_info *llfi)
{
struct fuse *f = req_fuse_prepare(req);
@@ -1966,48 +2319,40 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path(f, ino);
if (path != NULL) {
- err = -ENOSYS;
- if (f->op.fsyncdir) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.fsyncdir(path, datasync, &fi);
- fuse_finish_interrupt(f, req, &d);
- }
+ struct fuse_intr_data d;
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_fsyncdir(f->fs, path, datasync, &fi);
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
reply_err(req, err);
}
-static int default_statfs(struct statvfs *buf)
-{
- buf->f_namemax = 255;
- buf->f_bsize = 512;
- return 0;
-}
-
-static void fuse_statfs(fuse_req_t req, fuse_ino_t ino)
+static void fuse_lib_statfs(fuse_req_t req, fuse_ino_t ino)
{
struct fuse *f = req_fuse_prepare(req);
struct statvfs buf;
+ char *path;
int err;
memset(&buf, 0, sizeof(buf));
- if (f->op.statfs) {
- if (ino && (!f->compat || f->compat >= 26)) {
- char *path;
- pthread_rwlock_rdlock(&f->tree_lock);
- err = -ENOENT;
- path = get_path(f, ino);
- if (path) {
- err = fuse_do_statfs(f, req, path, &buf);
- free(path);
- }
- pthread_rwlock_unlock(&f->tree_lock);
- } else
- err = fuse_compat_statfs(f, req, &buf);
- } else
- err = default_statfs(&buf);
+ pthread_rwlock_rdlock(&f->tree_lock);
+ if (!ino) {
+ err = -ENOMEM;
+ path = strdup("/");
+ } else {
+ err = -ENOENT;
+ path = get_path(f, ino);
+ }
+ if (path) {
+ struct fuse_intr_data d;
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_statfs(f->fs, path, &buf);
+ fuse_finish_interrupt(f, req, &d);
+ free(path);
+ }
+ pthread_rwlock_unlock(&f->tree_lock);
if (!err)
fuse_reply_statfs(req, &buf);
@@ -2015,8 +2360,8 @@
reply_err(req, err);
}
-static void fuse_setxattr(fuse_req_t req, fuse_ino_t ino, const char *name,
- const char *value, size_t size, int flags)
+static void fuse_lib_setxattr(fuse_req_t req, fuse_ino_t ino, const char *name,
+ const char *value, size_t size, int flags)
{
struct fuse *f = req_fuse_prepare(req);
char *path;
@@ -2026,13 +2371,10 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path(f, ino);
if (path != NULL) {
- err = -ENOSYS;
- if (f->op.setxattr) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.setxattr(path, name, value, size, flags);
- fuse_finish_interrupt(f, req, &d);
- }
+ struct fuse_intr_data d;
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_setxattr(f->fs, path, name, value, size, flags);
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
@@ -2049,21 +2391,18 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path(f, ino);
if (path != NULL) {
- err = -ENOSYS;
- if (f->op.getxattr) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.getxattr(path, name, value, size);
- fuse_finish_interrupt(f, req, &d);
- }
+ struct fuse_intr_data d;
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_getxattr(f->fs, path, name, value, size);
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
return err;
}
-static void fuse_getxattr(fuse_req_t req, fuse_ino_t ino, const char *name,
- size_t size)
+static void fuse_lib_getxattr(fuse_req_t req, fuse_ino_t ino, const char *name,
+ size_t size)
{
struct fuse *f = req_fuse_prepare(req);
int res;
@@ -2099,20 +2438,17 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path(f, ino);
if (path != NULL) {
- err = -ENOSYS;
- if (f->op.listxattr) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.listxattr(path, list, size);
- fuse_finish_interrupt(f, req, &d);
- }
+ struct fuse_intr_data d;
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_listxattr(f->fs, path, list, size);
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
return err;
}
-static void fuse_listxattr(fuse_req_t req, fuse_ino_t ino, size_t size)
+static void fuse_lib_listxattr(fuse_req_t req, fuse_ino_t ino, size_t size)
{
struct fuse *f = req_fuse_prepare(req);
int res;
@@ -2138,7 +2474,8 @@
}
}
-static void fuse_removexattr(fuse_req_t req, fuse_ino_t ino, const char *name)
+static void fuse_lib_removexattr(fuse_req_t req, fuse_ino_t ino,
+ const char *name)
{
struct fuse *f = req_fuse_prepare(req);
char *path;
@@ -2148,13 +2485,10 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path(f, ino);
if (path != NULL) {
- err = -ENOSYS;
- if (f->op.removexattr) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- err = f->op.removexattr(path, name);
- fuse_finish_interrupt(f, req, &d);
- }
+ struct fuse_intr_data d;
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_removexattr(f->fs, path, name);
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
@@ -2277,32 +2611,34 @@
flock->l_pid = lock->pid;
}
-static void fuse_flush(fuse_req_t req, fuse_ino_t ino,
+static void fuse_lib_flush(fuse_req_t req, fuse_ino_t ino,
struct fuse_file_info *fi)
{
struct fuse *f = req_fuse_prepare(req);
+ struct fuse_intr_data d;
+ struct flock lock;
+ struct lock l;
char *path;
int err;
+ int errlock;
err = -ENOENT;
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path(f, ino);
- if (path != NULL) {
- if (f->conf.debug) {
- printf("FLUSH[%llu]\n", (unsigned long long) fi->fh);
- fflush(stdout);
- }
- err = -ENOSYS;
- if (f->op.flush)
- err = fuse_do_flush(f, req, path, fi);
+ if (path && f->conf.debug) {
+ printf("FLUSH[%llu]\n", (unsigned long long) fi->fh);
+ fflush(stdout);
}
- if (f->op.lock) {
- struct flock lock;
- struct lock l;
- memset(&lock, 0, sizeof(lock));
- lock.l_type = F_UNLCK;
- lock.l_whence = SEEK_SET;
- fuse_do_lock(f, req, path, fi, F_SETLK, &lock);
+ fuse_prepare_interrupt(f, req, &d);
+ if (path)
+ err = fuse_fs_flush(f->fs, path, fi);
+
+ memset(&lock, 0, sizeof(lock));
+ lock.l_type = F_UNLCK;
+ lock.l_whence = SEEK_SET;
+ errlock = fuse_fs_lock(f->fs, path, fi, F_SETLK, &lock);
+ fuse_finish_interrupt(f, req, &d);
+ if (errlock != ENOSYS) {
flock_to_lock(&lock, &l);
l.owner = fi->lock_owner;
pthread_mutex_lock(&f->lock);
@@ -2313,7 +2649,8 @@
if (err == -ENOSYS)
err = 0;
}
- free(path);
+ if (path)
+ free(path);
pthread_rwlock_unlock(&f->tree_lock);
reply_err(req, err);
}
@@ -2330,15 +2667,18 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path(f, ino);
if (path != NULL) {
- err = fuse_do_lock(f, req, path, fi, cmd, lock);
+ struct fuse_intr_data d;
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_lock(f->fs, path, fi, cmd, lock);
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
return err;
}
-static void fuse_getlk(fuse_req_t req, fuse_ino_t ino,
- struct fuse_file_info *fi, struct flock *lock)
+static void fuse_lib_getlk(fuse_req_t req, fuse_ino_t ino,
+ struct fuse_file_info *fi, struct flock *lock)
{
int err;
struct lock l;
@@ -2363,9 +2703,9 @@
reply_err(req, err);
}
-static void fuse_setlk(fuse_req_t req, fuse_ino_t ino,
- struct fuse_file_info *fi, struct flock *lock,
- int sleep)
+static void fuse_lib_setlk(fuse_req_t req, fuse_ino_t ino,
+ struct fuse_file_info *fi, struct flock *lock,
+ int sleep)
{
int err = fuse_lock_common(req, ino, fi, lock, sleep ? F_SETLKW : F_SETLK);
if (!err) {
@@ -2380,10 +2720,11 @@
reply_err(req, err);
}
-static void fuse_bmap(fuse_req_t req, fuse_ino_t ino, size_t blocksize,
- uint64_t idx)
+static void fuse_lib_bmap(fuse_req_t req, fuse_ino_t ino, size_t blocksize,
+ uint64_t idx)
{
struct fuse *f = req_fuse_prepare(req);
+ struct fuse_intr_data d;
char *path;
int err;
@@ -2391,9 +2732,9 @@
pthread_rwlock_rdlock(&f->tree_lock);
path = get_path(f, ino);
if (path != NULL) {
- err = -ENOSYS;
- if (f->op.bmap)
- err = f->op.bmap(path, blocksize, &idx);
+ fuse_prepare_interrupt(f, req, &d);
+ err = fuse_fs_bmap(f->fs, path, blocksize, &idx);
+ fuse_finish_interrupt(f, req, &d);
free(path);
}
pthread_rwlock_unlock(&f->tree_lock);
@@ -2404,40 +2745,40 @@
}
static struct fuse_lowlevel_ops fuse_path_ops = {
- .init = fuse_data_init,
- .destroy = fuse_data_destroy,
- .lookup = fuse_lookup,
- .forget = fuse_forget,
- .getattr = fuse_getattr,
- .setattr = fuse_setattr,
- .access = fuse_access,
- .readlink = fuse_readlink,
- .mknod = fuse_mknod,
- .mkdir = fuse_mkdir,
- .unlink = fuse_unlink,
- .rmdir = fuse_rmdir,
- .symlink = fuse_symlink,
- .rename = fuse_rename,
- .link = fuse_link,
- .create = fuse_create,
- .open = fuse_open,
- .read = fuse_read,
- .write = fuse_write,
- .flush = fuse_flush,
- .release = fuse_release,
- .fsync = fuse_fsync,
- .opendir = fuse_opendir,
- .readdir = fuse_readdir,
- .releasedir = fuse_releasedir,
- .fsyncdir = fuse_fsyncdir,
- .statfs = fuse_statfs,
- .setxattr = fuse_setxattr,
- .getxattr = fuse_getxattr,
- .listxattr = fuse_listxattr,
- .removexattr = fuse_removexattr,
- .getlk = fuse_getlk,
- .setlk = fuse_setlk,
- .bmap = fuse_bmap,
+ .init = fuse_lib_init,
+ .destroy = fuse_lib_destroy,
+ .lookup = fuse_lib_lookup,
+ .forget = fuse_lib_forget,
+ .getattr = fuse_lib_getattr,
+ .setattr = fuse_lib_setattr,
+ .access = fuse_lib_access,
+ .readlink = fuse_lib_readlink,
+ .mknod = fuse_lib_mknod,
+ .mkdir = fuse_lib_mkdir,
+ .unlink = fuse_lib_unlink,
+ .rmdir = fuse_lib_rmdir,
+ .symlink = fuse_lib_symlink,
+ .rename = fuse_lib_rename,
+ .link = fuse_lib_link,
+ .create = fuse_lib_create,
+ .open = fuse_lib_open,
+ .read = fuse_lib_read,
+ .write = fuse_lib_write,
+ .flush = fuse_lib_flush,
+ .release = fuse_lib_release,
+ .fsync = fuse_lib_fsync,
+ .opendir = fuse_lib_opendir,
+ .readdir = fuse_lib_readdir,
+ .releasedir = fuse_lib_releasedir,
+ .fsyncdir = fuse_lib_fsyncdir,
+ .statfs = fuse_lib_statfs,
+ .setxattr = fuse_lib_setxattr,
+ .getxattr = fuse_lib_getxattr,
+ .listxattr = fuse_lib_listxattr,
+ .removexattr = fuse_lib_removexattr,
+ .getlk = fuse_lib_getlk,
+ .setlk = fuse_lib_setlk,
+ .bmap = fuse_lib_bmap,
};
static void free_cmd(struct fuse_cmd *cmd)
@@ -2566,6 +2907,7 @@
FUSE_LIB_OPT("negative_timeout=%lf", negative_timeout, 0),
FUSE_LIB_OPT("intr", intr, 1),
FUSE_LIB_OPT("intr_signal=%d", intr_signal, 0),
+ FUSE_LIB_OPT("modules=%s", modules, 0),
FUSE_OPT_END
};
@@ -2587,21 +2929,44 @@
" -o ac_attr_timeout=T auto cache timeout for attributes (attr_timeout)\n"
" -o intr allow requests to be interrupted\n"
" -o intr_signal=NUM signal to send on interrupt (%i)\n"
+" -o modules=M1[:M2...] names of modules to push onto filesystem stack\n"
"\n", FUSE_DEFAULT_INTR_SIGNAL);
}
+static void fuse_lib_help_modules(void)
+{
+ struct fuse_module *m;
+ fprintf(stderr, "\nModule options:\n");
+ pthread_mutex_lock(&fuse_context_lock);
+ for (m = fuse_modules; m; m = m->next) {
+ struct fuse_fs *fs = NULL;
+ struct fuse_fs *newfs;
+ struct fuse_args args = FUSE_ARGS_INIT(0, NULL);
+ if (fuse_opt_add_arg(&args, "") != -1 &&
+ fuse_opt_add_arg(&args, "-h") != -1) {
+ fprintf(stderr, "\n[%s]\n", m->name);
+ newfs = m->factory(&args, &fs);
+ assert(newfs == NULL);
+ }
+ fuse_opt_free_args(&args);
+ }
+ pthread_mutex_unlock(&fuse_context_lock);
+}
+
static int fuse_lib_opt_proc(void *data, const char *arg, int key,
struct fuse_args *outargs)
{
- (void) data; (void) arg; (void) outargs;
+ (void) arg; (void) outargs;
- if (key == KEY_HELP)
+ if (key == KEY_HELP) {
+ struct fuse_config *conf = (struct fuse_config *) data;
fuse_lib_help();
+ conf->help = 1;
+ }
return 1;
}
-
int fuse_is_lib_option(const char *opt)
{
return fuse_lowlevel_is_lib_option(opt) ||
@@ -2642,19 +3007,57 @@
sigaction(signum, &sa, NULL);
}
+
+static int fuse_push_module(struct fuse *f, const char *module,
+ struct fuse_args *args)
+{
+ struct fuse_fs *fs[2] = { f->fs, NULL };
+ struct fuse_fs *newfs;
+ struct fuse_module *m = fuse_get_module(module);
+
+ if (!m)
+ return -1;
+
+ newfs = m->factory(args, fs);
+ if (!newfs) {
+ fuse_put_module(m);
+ return -1;
+ }
+ newfs->m = m;
+ f->fs = newfs;
+ return 0;
+}
+
+struct fuse_fs *fuse_fs_new(const struct fuse_operations *op, size_t op_size,
+ void *user_data)
+{
+ struct fuse_fs *fs;
+
+ if (sizeof(struct fuse_operations) < op_size) {
+ fprintf(stderr, "fuse: warning: library too old, some operations may not not work\n");
+ op_size = sizeof(struct fuse_operations);
+ }
+
+ fs = (struct fuse_fs *) calloc(1, sizeof(struct fuse_fs));
+ if (!fs) {
+ fprintf(stderr, "fuse: failed to allocate fuse_fs object\n");
+ return NULL;
+ }
+
+ fs->user_data = user_data;
+ memcpy(&fs->op, op, op_size);
+ return fs;
+}
+
struct fuse *fuse_new_common(struct fuse_chan *ch, struct fuse_args *args,
const struct fuse_operations *op,
size_t op_size, void *user_data, int compat)
{
struct fuse *f;
struct node *root;
+ struct fuse_fs *fs;
struct fuse_lowlevel_ops llop = fuse_path_ops;
- if (sizeof(struct fuse_operations) < op_size) {
- fprintf(stderr, "fuse: warning: library too old, some operations may not not work\n");
- op_size = sizeof(struct fuse_operations);
- }
-
if (fuse_create_context_key() == -1)
goto out;
@@ -2664,14 +3067,40 @@
goto out_delete_context_key;
}
- f->user_data = user_data;
+ fs = fuse_fs_new(op, op_size, user_data);
+ if (!fs)
+ goto out_free;
+
+ fs->compat = compat;
+ f->fs = fs;
+
+ /* Oh f**k, this is ugly! */
+ if (!fs->op.lock) {
+ llop.getlk = NULL;
+ llop.setlk = NULL;
+ }
+
f->conf.entry_timeout = 1.0;
f->conf.attr_timeout = 1.0;
f->conf.negative_timeout = 0.0;
f->conf.intr_signal = FUSE_DEFAULT_INTR_SIGNAL;
if (fuse_opt_parse(args, &f->conf, fuse_lib_opts, fuse_lib_opt_proc) == -1)
- goto out_free;
+ goto out_free_fs;
+
+ if (f->conf.modules) {
+ char *module;
+ char *next;
+
+ for (module = f->conf.modules; module; module = next) {
+ char *p;
+ for (p = module; *p && *p != ':'; p++);
+ next = *p ? p + 1 : NULL;
+ *p = '\0';
+ if (module[0] && fuse_push_module(f, module, args) == -1)
+ goto out_free_fs;
+ }
+ }
if (!f->conf.ac_attr_timeout_set)
f->conf.ac_attr_timeout = f->conf.attr_timeout;
@@ -2686,18 +3115,15 @@
if (compat && compat <= 25) {
if (fuse_sync_compat_args(args) == -1)
- goto out_free;
- }
-
- memcpy(&f->op, op, op_size);
- if (!f->op.lock) {
- llop.getlk = NULL;
- llop.setlk = NULL;
+ goto out_free_fs;
}
f->se = fuse_lowlevel_new_common(args, &llop, sizeof(llop), f);
- if (f->se == NULL)
- goto out_free;
+ if (f->se == NULL) {
+ if (f->conf.help)
+ fuse_lib_help_modules();
+ goto out_free_fs;
+ }
fuse_session_add_chan(f->se, ch);
@@ -2722,7 +3148,6 @@
fuse_mutex_init(&f->lock);
pthread_rwlock_init(&f->tree_lock, NULL);
- f->compat = compat;
root = (struct node *) calloc(1, sizeof(struct node));
if (root == NULL) {
@@ -2759,6 +3184,11 @@
free(f->name_table);
out_free_session:
fuse_session_destroy(f->se);
+ out_free_fs:
+ /* Horrible compatibility hack to stop the destructor from being
+ called on the filesystem without init being called first */
+ fs->op.destroy = NULL;
+ fuse_fs_destroy(f->fs);
out_free:
free(f);
out_delete_context_key:
@@ -2777,24 +3207,26 @@
void fuse_destroy(struct fuse *f)
{
size_t i;
- struct fuse_context_i *c = fuse_get_context_internal();
if (f->conf.intr && f->intr_installed)
fuse_restore_intr_signal(f->conf.intr_signal);
- memset(c, 0, sizeof(*c));
- c->ctx.fuse = f;
- c->ctx.private_data = f->user_data;
+ if (f->fs) {
+ struct fuse_context_i *c = fuse_get_context_internal();
- for (i = 0; i < f->id_table_size; i++) {
- struct node *node;
+ memset(c, 0, sizeof(*c));
+ c->ctx.fuse = f;
- for (node = f->id_table[i]; node != NULL; node = node->id_next) {
- if (node->is_hidden) {
- char *path = get_path(f, node->nodeid);
- if (path) {
- f->op.unlink(path);
- free(path);
+ for (i = 0; i < f->id_table_size; i++) {
+ struct node *node;
+
+ for (node = f->id_table[i]; node != NULL; node = node->id_next) {
+ if (node->is_hidden) {
+ char *path = get_path(f, node->nodeid);
+ if (path) {
+ fuse_fs_unlink(f->fs, path);
+ free(path);
+ }
}
}
}
@@ -2817,9 +3249,6 @@
fuse_delete_context_key();
}
-#include "fuse_common_compat.h"
-#include "fuse_compat.h"
-
static struct fuse *fuse_new_common_compat25(int fd, struct fuse_args *args,
const struct fuse_operations *op,
size_t op_size, int compat)
@@ -2833,114 +3262,19 @@
return f;
}
+/* called with fuse_context_lock held or during initialization (before
+ main() has been called) */
+void fuse_register_module(struct fuse_module *mod)
+{
+ mod->so = fuse_current_so;
+ if (mod->so)
+ mod->so->ctr++;
+ mod->next = fuse_modules;
+ fuse_modules = mod;
+}
+
#ifndef __FreeBSD__
-static int fuse_compat_open(struct fuse *f, fuse_req_t req, char *path,
- struct fuse_file_info *fi)
-{
- int err;
- struct fuse_intr_data d;
- if (!f->compat || f->compat >= 25)
- err = fuse_do_open(f, req, path, fi);
- else if (f->compat == 22) {
- struct fuse_file_info_compat tmp;
- memcpy(&tmp, fi, sizeof(tmp));
- fuse_prepare_interrupt(f, req, &d);
- err = ((struct fuse_operations_compat22 *) &f->op)->open(path, &tmp);
- fuse_finish_interrupt(f, req, &d);
- memcpy(fi, &tmp, sizeof(tmp));
- fi->fh = tmp.fh;
- } else {
- fuse_prepare_interrupt(f, req, &d);
- err =
- ((struct fuse_operations_compat2 *) &f->op)->open(path, fi->flags);
- fuse_finish_interrupt(f, req, &d);
- }
- return err;
-}
-
-static void fuse_compat_release(struct fuse *f, fuse_req_t req, char *path,
- struct fuse_file_info *fi)
-{
- if (!f->compat || f->compat >= 22)
- fuse_do_release(f, req, path ? path : "-", fi);
- else if (path) {
- struct fuse_intr_data d;
- fuse_prepare_interrupt(f, req, &d);
- ((struct fuse_operations_compat2 *) &f->op)->release(path, fi->flags);
- fuse_finish_interrupt(f, req, &d);
- }
-}
-
-static int fuse_compat_opendir(struct fuse *f, fuse_req_t req, char *path,
- struct fuse_file_info *fi)
-{
- if (!f->compat || f->compat >= 25) {
- return fuse_do_opendir(f, req, path, fi);
- } else {
- int err;
- struct fuse_file_info_compat tmp;
- struct fuse_intr_data d;
- memcpy(&tmp, fi, sizeof(tmp));
- fuse_prepare_interrupt(f, req, &d);
- err = ((struct fuse_operations_compat22 *) &f->op)->opendir(path, &tmp);
- fuse_finish_interrupt(f, req, &d);
- memcpy(fi, &tmp, sizeof(tmp));
- fi->fh = tmp.fh;
- return err;
- }
-}
-
-static void convert_statfs_compat(struct fuse_statfs_compat1 *compatbuf,
- struct statvfs *stbuf)
-{
- stbuf->f_bsize = compatbuf->block_size;
- stbuf->f_blocks = compatbuf->blocks;
- stbuf->f_bfree = compatbuf->blocks_free;
- stbuf->f_bavail = compatbuf->blocks_free;
- stbuf->f_files = compatbuf->files;
- stbuf->f_ffree = compatbuf->files_free;
- stbuf->f_namemax = compatbuf->namelen;
-}
-
-static void convert_statfs_old(struct statfs *oldbuf, struct statvfs *stbuf)
-{
- stbuf->f_bsize = oldbuf->f_bsize;
- stbuf->f_blocks = oldbuf->f_blocks;
- stbuf->f_bfree = oldbuf->f_bfree;
- stbuf->f_bavail = oldbuf->f_bavail;
- stbuf->f_files = oldbuf->f_files;
- stbuf->f_ffree = oldbuf->f_ffree;
- stbuf->f_namemax = oldbuf->f_namelen;
-}
-
-static int fuse_compat_statfs(struct fuse *f, fuse_req_t req,
- struct statvfs *buf)
-{
- int err;
- struct fuse_intr_data d;
-
- if (!f->compat || f->compat >= 25) {
- err = fuse_do_statfs(f, req, "/", buf);
- } else if (f->compat > 11) {
- struct statfs oldbuf;
- fuse_prepare_interrupt(f, req, &d);
- err = ((struct fuse_operations_compat22 *) &f->op)->statfs("/", &oldbuf);
- fuse_finish_interrupt(f, req, &d);
- if (!err)
- convert_statfs_old(&oldbuf, buf);
- } else {
- struct fuse_statfs_compat1 compatbuf;
- memset(&compatbuf, 0, sizeof(struct fuse_statfs_compat1));
- fuse_prepare_interrupt(f, req, &d);
- err = ((struct fuse_operations_compat1 *) &f->op)->statfs(&compatbuf);
- fuse_finish_interrupt(f, req, &d);
- if (!err)
- convert_statfs_compat(&compatbuf, buf);
- }
- return err;
-}
-
static struct fuse *fuse_new_common_compat(int fd, const char *opts,
const struct fuse_operations *op,
size_t op_size, int compat)
@@ -2994,31 +3328,6 @@
__asm__(".symver fuse_new_compat2,fuse_new@");
__asm__(".symver fuse_new_compat22,fuse_new@FUSE_2.2");
-#else /* __FreeBSD__ */
-
-static int fuse_compat_open(struct fuse *f, fuse_req_t req, char *path,
- struct fuse_file_info *fi)
-{
- return fuse_do_open(f, req, path, fi);
-}
-
-static void fuse_compat_release(struct fuse *f, fuse_req_t req, char *path,
- struct fuse_file_info *fi)
-{
- fuse_do_release(f, req, path ? path : "-", fi);
-}
-
-static int fuse_compat_opendir(struct fuse *f, fuse_req_t req, char *path,
- struct fuse_file_info *fi)
-{
- return fuse_do_opendir(f, req, path, fi);
-}
-
-static int fuse_compat_statfs(struct fuse *f, fuse_req_t req, struct statvfs *buf)
-{
- return fuse_do_statfs(f, req, "/", buf);
-}
-
#endif /* __FreeBSD__ */
struct fuse *fuse_new_compat25(int fd, struct fuse_args *args,
diff --git a/lib/fuse_lowlevel.c b/lib/fuse_lowlevel.c
index 682c503..28468df 100644
--- a/lib/fuse_lowlevel.c
+++ b/lib/fuse_lowlevel.c
@@ -75,11 +75,9 @@
attr->atime = stbuf->st_atime;
attr->mtime = stbuf->st_mtime;
attr->ctime = stbuf->st_ctime;
-#ifdef FUSE_STAT_HAS_NANOSEC
- attr->atimensec = ST_ATIM(stbuf).tv_nsec;
- attr->mtimensec = ST_MTIM(stbuf).tv_nsec;
- attr->ctimensec = ST_CTIM(stbuf).tv_nsec;
-#endif
+ attr->atimensec = ST_ATIM_NSEC(stbuf);
+ attr->mtimensec = ST_MTIM_NSEC(stbuf);
+ attr->ctimensec = ST_CTIM_NSEC(stbuf);
}
static void convert_attr(const struct fuse_setattr_in *attr, struct stat *stbuf)
@@ -90,10 +88,8 @@
stbuf->st_size = attr->size;
stbuf->st_atime = attr->atime;
stbuf->st_mtime = attr->mtime;
-#ifdef FUSE_STAT_HAS_NANOSEC
- ST_ATIM(stbuf).tv_nsec = attr->atimensec;
- ST_MTIM(stbuf).tv_nsec = attr->mtimensec;
-#endif
+ ST_ATIM_NSEC_SET(stbuf, attr->atimensec);
+ ST_MTIM_NSEC_SET(stbuf, attr->mtimensec);
}
static size_t iov_length(const struct iovec *iov, size_t count)
diff --git a/lib/fuse_misc.h b/lib/fuse_misc.h
index 57a1e37..0fabfe4 100644
--- a/lib/fuse_misc.h
+++ b/lib/fuse_misc.h
@@ -24,14 +24,22 @@
#ifdef HAVE_STRUCT_STAT_ST_ATIM
/* Linux */
-#define ST_ATIM(stbuf) (stbuf)->st_atim
-#define ST_CTIM(stbuf) (stbuf)->st_ctim
-#define ST_MTIM(stbuf) (stbuf)->st_mtim
-#define FUSE_STAT_HAS_NANOSEC 1
+#define ST_ATIM_NSEC(stbuf) ((stbuf)->st_atim.tv_nsec)
+#define ST_CTIM_NSEC(stbuf) ((stbuf)->st_ctim.tv_nsec)
+#define ST_MTIM_NSEC(stbuf) ((stbuf)->st_mtim.tv_nsec)
+#define ST_ATIM_NSEC_SET(stbuf, val) (stbuf)->st_atim.tv_nsec = (val)
+#define ST_MTIM_NSEC_SET(stbuf, val) (stbuf)->st_mtim.tv_nsec = (val)
#elif defined(HAVE_STRUCT_STAT_ST_ATIMESPEC)
/* FreeBSD */
-#define ST_ATIM(stbuf) (stbuf)->st_atimespec
-#define ST_CTIM(stbuf) (stbuf)->st_ctimespec
-#define ST_MTIM(stbuf) (stbuf)->st_mtimespec
-#define FUSE_STAT_HAS_NANOSEC 1
+#define ST_ATIM(stbuf) ((stbuf)->st_atimespec.tv_nsec)
+#define ST_CTIM(stbuf) ((stbuf)->st_ctimespec.tv_nsec)
+#define ST_MTIM(stbuf) ((stbuf)->st_mtimespec.tv_nsec)
+#define ST_ATIM_NSEC_SET(stbuf, val) (stbuf)->st_atimespec.tv_nsec = (val)
+#define ST_MTIM_NSEC_SET(stbuf, val) (stbuf)->st_mtimespec.tv_nsec = (val)
+#else
+#define ST_ATIM_NSEC(stbuf) 0
+#define ST_CTIM_NSEC(stbuf) 0
+#define ST_MTIM_NSEC(stbuf) 0
+#define ST_ATIM_NSEC_SET(stbuf, val) do { } while (0)
+#define ST_MTIM_NSEC_SET(stbuf, val) do { } while (0)
#endif
diff --git a/lib/fuse_versionscript b/lib/fuse_versionscript
index df0c7d1..cbce074 100644
--- a/lib/fuse_versionscript
+++ b/lib/fuse_versionscript
@@ -108,7 +108,49 @@
fuse_teardown_compat22;
fuse_unmount;
fuse_unmount_compat22;
+} FUSE_2.5;
+
+FUSE_2.7 {
+ global:
+ fuse_fs_access;
+ fuse_fs_bmap;
+ fuse_fs_chmod;
+ fuse_fs_chown;
+ fuse_fs_create;
+ fuse_fs_destroy;
+ fuse_fs_fgetattr;
+ fuse_fs_flush;
+ fuse_fs_fsync;
+ fuse_fs_fsyncdir;
+ fuse_fs_ftruncate;
+ fuse_fs_getattr;
+ fuse_fs_getxattr;
+ fuse_fs_init;
+ fuse_fs_link;
+ fuse_fs_listxattr;
+ fuse_fs_lock;
+ fuse_fs_mkdir;
+ fuse_fs_mknod;
+ fuse_fs_new;
+ fuse_fs_open;
+ fuse_fs_opendir;
+ fuse_fs_read;
+ fuse_fs_readdir;
+ fuse_fs_readlink;
+ fuse_fs_release;
+ fuse_fs_releasedir;
+ fuse_fs_removexattr;
+ fuse_fs_rename;
+ fuse_fs_rmdir;
+ fuse_fs_setxattr;
+ fuse_fs_statfs;
+ fuse_fs_symlink;
+ fuse_fs_truncate;
+ fuse_fs_unlink;
+ fuse_fs_utimens;
+ fuse_fs_write;
+ fuse_register_module;
local:
- *;
-} FUSE_2.5;
+ *;
+} FUSE_2.6;
diff --git a/lib/modules/iconv.c b/lib/modules/iconv.c
new file mode 100644
index 0000000..eec0205
--- /dev/null
+++ b/lib/modules/iconv.c
@@ -0,0 +1,701 @@
+#define FUSE_USE_VERSION 26
+#define _FILE_OFFSET_BITS 64
+
+#include <fuse.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <string.h>
+#include <errno.h>
+#include <iconv.h>
+#include <pthread.h>
+#include <locale.h>
+#include <langinfo.h>
+
+struct iconv {
+ struct fuse_fs *next;
+ pthread_mutex_t lock;
+ char *from_code;
+ char *to_code;
+ iconv_t tofs;
+ iconv_t fromfs;
+};
+
+struct iconv_dh {
+ struct iconv *ic;
+ void *prev_buf;
+ fuse_fill_dir_t prev_filler;
+};
+
+static struct iconv *iconv_get(void)
+{
+ return fuse_get_context()->private_data;
+}
+
+static int iconv_convpath(struct iconv *ic, const char *path, char **newpathp,
+ int fromfs)
+{
+ size_t pathlen = strlen(path);
+ size_t newpathlen = pathlen; /* FIXME after testing */
+ char *newpath = malloc(newpathlen + 1);
+ size_t plen = newpathlen;
+ char *p = newpath;
+ size_t res;
+ int err;
+
+ if (!newpath)
+ return -ENOMEM;
+
+ pthread_mutex_lock(&ic->lock);
+ do {
+ res = iconv(fromfs ? ic->fromfs : ic->tofs, (char **) &path, &pathlen,
+ &p, &plen);
+ if (res == (size_t) -1) {
+ char *tmp;
+ size_t inc;
+
+ err = -EILSEQ;
+ if (errno != E2BIG)
+ goto err;
+
+ inc = (pathlen + 1) * 4;
+ newpathlen += inc;
+ tmp = realloc(newpath, newpathlen + 1);
+ err = -ENOMEM;
+ if (!tmp)
+ goto err;
+
+ p = tmp + (p - newpath);
+ plen += inc;
+ newpath = tmp;
+ }
+ } while (res == (size_t) -1);
+ pthread_mutex_unlock(&ic->lock);
+ *p = '\0';
+ *newpathp = newpath;
+ return 0;
+
+ err:
+ iconv(fromfs ? ic->fromfs : ic->tofs, NULL, NULL, NULL, NULL);
+ pthread_mutex_unlock(&ic->lock);
+ free(newpath);
+ return err;
+}
+
+static int iconv_getattr(const char *path, struct stat *stbuf)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_getattr(ic->next, newpath, stbuf);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_fgetattr(const char *path, struct stat *stbuf,
+ struct fuse_file_info *fi)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_fgetattr(ic->next, newpath, stbuf, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_access(const char *path, int mask)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_access(ic->next, newpath, mask);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_readlink(const char *path, char *buf, size_t size)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_readlink(ic->next, newpath, buf, size);
+ if (!err) {
+ char *newlink;
+ err = iconv_convpath(ic, buf, &newlink, 1);
+ if (!err) {
+ strncpy(buf, newlink, size - 1);
+ buf[size - 1] = '\0';
+ free(newlink);
+ }
+ }
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_opendir(const char *path, struct fuse_file_info *fi)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_opendir(ic->next, newpath, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_dir_fill(void *buf, const char *name,
+ const struct stat *stbuf, off_t off)
+{
+ struct iconv_dh *dh = buf;
+ char *newname;
+ int res = 0;
+ if (iconv_convpath(dh->ic, name, &newname, 1) == 0) {
+ res = dh->prev_filler(dh->prev_buf, newname, stbuf, off);
+ free(newname);
+ }
+ return res;
+}
+
+static int iconv_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
+ off_t offset, struct fuse_file_info *fi)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ struct iconv_dh dh;
+ dh.ic = ic;
+ dh.prev_buf = buf;
+ dh.prev_filler = filler;
+ err = fuse_fs_readdir(ic->next, newpath, &dh, iconv_dir_fill, offset,
+ fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_releasedir(const char *path, struct fuse_file_info *fi)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_releasedir(ic->next, newpath, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_mknod(const char *path, mode_t mode, dev_t rdev)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_mknod(ic->next, newpath, mode, rdev);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_mkdir(const char *path, mode_t mode)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_mkdir(ic->next, newpath, mode);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_unlink(const char *path)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_unlink(ic->next, newpath);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_rmdir(const char *path)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_rmdir(ic->next, newpath);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_symlink(const char *from, const char *to)
+{
+ struct iconv *ic = iconv_get();
+ char *newfrom;
+ char *newto;
+ int err = iconv_convpath(ic, from, &newfrom, 0);
+ if (!err) {
+ err = iconv_convpath(ic, to, &newto, 0);
+ if (!err) {
+ err = fuse_fs_symlink(ic->next, newfrom, newto);
+ free(newto);
+ }
+ free(newfrom);
+ }
+ return err;
+}
+
+static int iconv_rename(const char *from, const char *to)
+{
+ struct iconv *ic = iconv_get();
+ char *newfrom;
+ char *newto;
+ int err = iconv_convpath(ic, from, &newfrom, 0);
+ if (!err) {
+ err = iconv_convpath(ic, to, &newto, 0);
+ if (!err) {
+ err = fuse_fs_rename(ic->next, newfrom, newto);
+ free(newto);
+ }
+ free(newfrom);
+ }
+ return err;
+}
+
+static int iconv_link(const char *from, const char *to)
+{
+ struct iconv *ic = iconv_get();
+ char *newfrom;
+ char *newto;
+ int err = iconv_convpath(ic, from, &newfrom, 0);
+ if (!err) {
+ err = iconv_convpath(ic, to, &newto, 0);
+ if (!err) {
+ err = fuse_fs_link(ic->next, newfrom, newto);
+ free(newto);
+ }
+ free(newfrom);
+ }
+ return err;
+}
+
+static int iconv_chmod(const char *path, mode_t mode)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_chmod(ic->next, newpath, mode);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_chown(const char *path, uid_t uid, gid_t gid)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_chown(ic->next, newpath, uid, gid);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_truncate(const char *path, off_t size)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_truncate(ic->next, newpath, size);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_ftruncate(const char *path, off_t size,
+ struct fuse_file_info *fi)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_ftruncate(ic->next, newpath, size, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_utimens(const char *path, const struct timespec ts[2])
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_utimens(ic->next, newpath, ts);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_create(const char *path, mode_t mode,
+ struct fuse_file_info *fi)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_create(ic->next, newpath, mode, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_open_file(const char *path, struct fuse_file_info *fi)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_open(ic->next, newpath, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_read(const char *path, char *buf, size_t size, off_t offset,
+ struct fuse_file_info *fi)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_read(ic->next, newpath, buf, size, offset, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_write(const char *path, const char *buf, size_t size,
+ off_t offset, struct fuse_file_info *fi)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_write(ic->next, newpath, buf, size, offset, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_statfs(const char *path, struct statvfs *stbuf)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_statfs(ic->next, newpath, stbuf);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_flush(const char *path, struct fuse_file_info *fi)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_flush(ic->next, newpath, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_release(const char *path, struct fuse_file_info *fi)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_release(ic->next, newpath, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_fsync(const char *path, int isdatasync,
+ struct fuse_file_info *fi)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_fsync(ic->next, newpath, isdatasync, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_fsyncdir(const char *path, int isdatasync,
+ struct fuse_file_info *fi)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_fsyncdir(ic->next, newpath, isdatasync, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_setxattr(const char *path, const char *name,
+ const char *value, size_t size, int flags)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_setxattr(ic->next, newpath, name, value, size, flags);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_getxattr(const char *path, const char *name, char *value,
+ size_t size)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_getxattr(ic->next, newpath, name, value, size);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_listxattr(const char *path, char *list, size_t size)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_listxattr(ic->next, newpath, list, size);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_removexattr(const char *path, const char *name)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_removexattr(ic->next, newpath, name);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_lock(const char *path, struct fuse_file_info *fi, int cmd,
+ struct flock *lock)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_lock(ic->next, newpath, fi, cmd, lock);
+ free(newpath);
+ }
+ return err;
+}
+
+static int iconv_bmap(const char *path, size_t blocksize, uint64_t *idx)
+{
+ struct iconv *ic = iconv_get();
+ char *newpath;
+ int err = iconv_convpath(ic, path, &newpath, 0);
+ if (!err) {
+ err = fuse_fs_bmap(ic->next, newpath, blocksize, idx);
+ free(newpath);
+ }
+ return err;
+}
+
+static void *iconv_init(struct fuse_conn_info *conn)
+{
+ struct iconv *ic = iconv_get();
+ fuse_fs_init(ic->next, conn);
+ return ic;
+}
+
+static void iconv_destroy(void *data)
+{
+ struct iconv *ic = data;
+ fuse_fs_destroy(ic->next);
+ iconv_close(ic->tofs);
+ iconv_close(ic->fromfs);
+ pthread_mutex_destroy(&ic->lock);
+ free(ic->from_code);
+ free(ic->to_code);
+ free(ic);
+}
+
+static struct fuse_operations iconv_oper = {
+ .destroy = iconv_destroy,
+ .init = iconv_init,
+ .getattr = iconv_getattr,
+ .fgetattr = iconv_fgetattr,
+ .access = iconv_access,
+ .readlink = iconv_readlink,
+ .opendir = iconv_opendir,
+ .readdir = iconv_readdir,
+ .releasedir = iconv_releasedir,
+ .mknod = iconv_mknod,
+ .mkdir = iconv_mkdir,
+ .symlink = iconv_symlink,
+ .unlink = iconv_unlink,
+ .rmdir = iconv_rmdir,
+ .rename = iconv_rename,
+ .link = iconv_link,
+ .chmod = iconv_chmod,
+ .chown = iconv_chown,
+ .truncate = iconv_truncate,
+ .ftruncate = iconv_ftruncate,
+ .utimens = iconv_utimens,
+ .create = iconv_create,
+ .open = iconv_open_file,
+ .read = iconv_read,
+ .write = iconv_write,
+ .statfs = iconv_statfs,
+ .flush = iconv_flush,
+ .release = iconv_release,
+ .fsync = iconv_fsync,
+ .fsyncdir = iconv_fsyncdir,
+ .setxattr = iconv_setxattr,
+ .getxattr = iconv_getxattr,
+ .listxattr = iconv_listxattr,
+ .removexattr= iconv_removexattr,
+ .lock = iconv_lock,
+ .bmap = iconv_bmap,
+};
+
+static struct fuse_opt iconv_opts[] = {
+ FUSE_OPT_KEY("-h", 0),
+ FUSE_OPT_KEY("--help", 0),
+ { "from_code=%s", offsetof(struct iconv, from_code), 0 },
+ { "to_code=%s", offsetof(struct iconv, to_code), 1 },
+ FUSE_OPT_END
+};
+
+static void iconv_help(void)
+{
+ char *old = strdup(setlocale(LC_CTYPE, ""));
+ char *charmap = strdup(nl_langinfo(CODESET));
+ setlocale(LC_CTYPE, old);
+ free(old);
+ fprintf(stderr,
+" -o from_code=CHARSET original encoding of file names (default: UTF-8)\n"
+" -o to_code=CHARSET new encoding of the file names (default: %s)\n",
+ charmap);
+ free(charmap);
+}
+
+static int iconv_opt_proc(void *data, const char *arg, int key,
+ struct fuse_args *outargs)
+{
+ (void) data; (void) arg; (void) outargs;
+
+ if (!key) {
+ iconv_help();
+ return -1;
+ }
+
+ return 1;
+}
+
+static struct fuse_fs *iconv_new(struct fuse_args *args,
+ struct fuse_fs *next[])
+{
+ struct fuse_fs *fs;
+ struct iconv *ic;
+ char *old = NULL;
+ const char *from;
+ const char *to;
+
+ ic = calloc(1, sizeof(struct iconv));
+ if (ic == NULL) {
+ fprintf(stderr, "fuse-iconv: memory allocation failed\n");
+ return NULL;
+ }
+
+ if (fuse_opt_parse(args, ic, iconv_opts, iconv_opt_proc) == -1)
+ goto out_free;
+
+ if (!next[0] || next[1]) {
+ fprintf(stderr, "fuse-iconv: exactly one next filesystem required\n");
+ goto out_free;
+ }
+
+ from = ic->from_code ? ic->from_code : "UTF-8";
+ to = ic->to_code ? ic->to_code : "";
+ /* FIXME: detect charset equivalence? */
+ if (!to[0])
+ old = strdup(setlocale(LC_CTYPE, ""));
+ ic->tofs = iconv_open(from, to);
+ if (ic->tofs == (iconv_t) -1) {
+ fprintf(stderr, "fuse-iconv: cannot convert from %s to %s\n",
+ to, from);
+ goto out_free;
+ }
+ ic->fromfs = iconv_open(to, from);
+ if (ic->tofs == (iconv_t) -1) {
+ fprintf(stderr, "fuse-iconv: cannot convert from %s to %s\n",
+ from, to);
+ goto out_iconv_close_to;
+ }
+ if (old) {
+ setlocale(LC_CTYPE, old);
+ free(old);
+ }
+
+ ic->next = next[0];
+ fs = fuse_fs_new(&iconv_oper, sizeof(iconv_oper), ic);
+ if (!fs)
+ goto out_iconv_close_from;
+
+ return fs;
+
+ out_iconv_close_from:
+ iconv_close(ic->fromfs);
+ out_iconv_close_to:
+ iconv_close(ic->tofs);
+ out_free:
+ free(ic->from_code);
+ free(ic->to_code);
+ free(ic);
+ return NULL;
+}
+
+FUSE_REGISTER_MODULE(iconv, iconv_new);
diff --git a/lib/modules/subdir.c b/lib/modules/subdir.c
new file mode 100644
index 0000000..eaba99d
--- /dev/null
+++ b/lib/modules/subdir.c
@@ -0,0 +1,655 @@
+#define FUSE_USE_VERSION 26
+#define _FILE_OFFSET_BITS 64
+
+#include <fuse.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <string.h>
+#include <errno.h>
+
+struct subdir {
+ char *base;
+ size_t baselen;
+ int rellinks;
+ struct fuse_fs *next;
+};
+
+static struct subdir *subdir_get(void)
+{
+ return fuse_get_context()->private_data;
+}
+
+static char *subdir_addpath(struct subdir *d, const char *path)
+{
+ unsigned newlen = d->baselen + strlen(path);
+ char *newpath = malloc(newlen + 2);
+ if (newpath) {
+ if (path[0] == '/')
+ path++;
+ strcpy(newpath, d->base);
+ strcpy(newpath + d->baselen, path);
+ if (!newpath[0])
+ strcpy(newpath, ".");
+ }
+ return newpath;
+}
+
+static int subdir_getattr(const char *path, struct stat *stbuf)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_getattr(d->next, newpath, stbuf);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_fgetattr(const char *path, struct stat *stbuf,
+ struct fuse_file_info *fi)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_fgetattr(d->next, newpath, stbuf, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_access(const char *path, int mask)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_access(d->next, newpath, mask);
+ free(newpath);
+ }
+ return err;
+}
+
+
+static int count_components(const char *p)
+{
+ int ctr;
+
+ for (; *p == '/'; p++);
+ for (ctr = 0; *p; ctr++) {
+ for (; *p && *p != '/'; p++);
+ for (; *p == '/'; p++);
+ }
+ return ctr;
+}
+
+static void strip_common(const char **sp, const char **tp)
+{
+ const char *s = *sp;
+ const char *t = *tp;
+ do {
+ for (; *s == '/'; s++);
+ for (; *t == '/'; t++);
+ *tp = t;
+ *sp = s;
+ for (; *s == *t && *s && *s != '/'; s++, t++);
+ } while ((*s == *t && *s) || (!*s && *t == '/') || (*s == '/' && !*t));
+}
+
+static void transform_symlink(struct subdir *d, const char *path,
+ char *buf, size_t size)
+{
+ const char *l = buf;
+ size_t llen;
+ char *s;
+ int dotdots;
+ int i;
+
+ if (l[0] != '/' || d->base[0] != '/')
+ return;
+
+ strip_common(&l, &path);
+ if (l - buf < d->baselen)
+ return;
+
+ dotdots = count_components(path);
+ if (!dotdots)
+ return;
+ dotdots--;
+
+ llen = strlen(l);
+ if (dotdots * 3 + llen + 2 > size)
+ return;
+
+ s = buf + dotdots * 3;
+ if (llen)
+ memmove(s, l, llen + 1);
+ else if (!dotdots)
+ strcpy(s, ".");
+ else
+ *s = '\0';
+
+ for (s = buf, i = 0; i < dotdots; i++, s += 3)
+ memcpy(s, "../", 3);
+}
+
+
+static int subdir_readlink(const char *path, char *buf, size_t size)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_readlink(d->next, newpath, buf, size);
+ if (!err && d->rellinks)
+ transform_symlink(d, newpath, buf, size);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_opendir(const char *path, struct fuse_file_info *fi)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_opendir(d->next, newpath, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_readdir(const char *path, void *buf,
+ fuse_fill_dir_t filler, off_t offset,
+ struct fuse_file_info *fi)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_readdir(d->next, newpath, buf, filler, offset, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_releasedir(const char *path, struct fuse_file_info *fi)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_releasedir(d->next, newpath, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_mknod(const char *path, mode_t mode, dev_t rdev)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_mknod(d->next, newpath, mode, rdev);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_mkdir(const char *path, mode_t mode)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_mkdir(d->next, newpath, mode);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_unlink(const char *path)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_unlink(d->next, newpath);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_rmdir(const char *path)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_rmdir(d->next, newpath);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_symlink(const char *from, const char *path)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_symlink(d->next, from, newpath);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_rename(const char *from, const char *to)
+{
+ struct subdir *d = subdir_get();
+ char *newfrom = subdir_addpath(d, from);
+ char *newto = subdir_addpath(d, to);
+ int err = -ENOMEM;
+ if (newfrom && newto)
+ err = fuse_fs_rename(d->next, newfrom, newto);
+ free(newfrom);
+ free(newto);
+ return err;
+}
+
+static int subdir_link(const char *from, const char *to)
+{
+ struct subdir *d = subdir_get();
+ char *newfrom = subdir_addpath(d, from);
+ char *newto = subdir_addpath(d, to);
+ int err = -ENOMEM;
+ if (newfrom && newto)
+ err = fuse_fs_link(d->next, newfrom, newto);
+ free(newfrom);
+ free(newto);
+ return err;
+}
+
+static int subdir_chmod(const char *path, mode_t mode)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_chmod(d->next, newpath, mode);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_chown(const char *path, uid_t uid, gid_t gid)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_chown(d->next, newpath, uid, gid);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_truncate(const char *path, off_t size)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_truncate(d->next, newpath, size);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_ftruncate(const char *path, off_t size,
+ struct fuse_file_info *fi)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_ftruncate(d->next, newpath, size, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_utimens(const char *path, const struct timespec ts[2])
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_utimens(d->next, newpath, ts);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_create(const char *path, mode_t mode, struct fuse_file_info *fi)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_create(d->next, newpath, mode, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_open(const char *path, struct fuse_file_info *fi)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_open(d->next, newpath, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_read(const char *path, char *buf, size_t size, off_t offset,
+ struct fuse_file_info *fi)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_read(d->next, newpath, buf, size, offset, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_write(const char *path, const char *buf, size_t size,
+ off_t offset, struct fuse_file_info *fi)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_write(d->next, newpath, buf, size, offset, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_statfs(const char *path, struct statvfs *stbuf)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_statfs(d->next, newpath, stbuf);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_flush(const char *path, struct fuse_file_info *fi)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_flush(d->next, newpath, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_release(const char *path, struct fuse_file_info *fi)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_release(d->next, newpath, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_fsync(const char *path, int isdatasync,
+ struct fuse_file_info *fi)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_fsync(d->next, newpath, isdatasync, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_fsyncdir(const char *path, int isdatasync,
+ struct fuse_file_info *fi)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_fsyncdir(d->next, newpath, isdatasync, fi);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_setxattr(const char *path, const char *name, const char *value,
+ size_t size, int flags)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_setxattr(d->next, newpath, name, value, size, flags);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_getxattr(const char *path, const char *name, char *value,
+ size_t size)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_getxattr(d->next, newpath, name, value, size);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_listxattr(const char *path, char *list, size_t size)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_listxattr(d->next, newpath, list, size);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_removexattr(const char *path, const char *name)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_removexattr(d->next, newpath, name);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_lock(const char *path, struct fuse_file_info *fi, int cmd,
+ struct flock *lock)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_lock(d->next, newpath, fi, cmd, lock);
+ free(newpath);
+ }
+ return err;
+}
+
+static int subdir_bmap(const char *path, size_t blocksize, uint64_t *idx)
+{
+ struct subdir *d = subdir_get();
+ char *newpath = subdir_addpath(d, path);
+ int err = -ENOMEM;
+ if (newpath) {
+ err = fuse_fs_bmap(d->next, newpath, blocksize, idx);
+ free(newpath);
+ }
+ return err;
+}
+
+static void *subdir_init(struct fuse_conn_info *conn)
+{
+ struct subdir *d = subdir_get();
+ fuse_fs_init(d->next, conn);
+ return d;
+}
+
+static void subdir_destroy(void *data)
+{
+ struct subdir *d = data;
+ fuse_fs_destroy(d->next);
+ free(d->base);
+ free(d);
+}
+
+static struct fuse_operations subdir_oper = {
+ .destroy = subdir_destroy,
+ .init = subdir_init,
+ .getattr = subdir_getattr,
+ .fgetattr = subdir_fgetattr,
+ .access = subdir_access,
+ .readlink = subdir_readlink,
+ .opendir = subdir_opendir,
+ .readdir = subdir_readdir,
+ .releasedir = subdir_releasedir,
+ .mknod = subdir_mknod,
+ .mkdir = subdir_mkdir,
+ .symlink = subdir_symlink,
+ .unlink = subdir_unlink,
+ .rmdir = subdir_rmdir,
+ .rename = subdir_rename,
+ .link = subdir_link,
+ .chmod = subdir_chmod,
+ .chown = subdir_chown,
+ .truncate = subdir_truncate,
+ .ftruncate = subdir_ftruncate,
+ .utimens = subdir_utimens,
+ .create = subdir_create,
+ .open = subdir_open,
+ .read = subdir_read,
+ .write = subdir_write,
+ .statfs = subdir_statfs,
+ .flush = subdir_flush,
+ .release = subdir_release,
+ .fsync = subdir_fsync,
+ .fsyncdir = subdir_fsyncdir,
+ .setxattr = subdir_setxattr,
+ .getxattr = subdir_getxattr,
+ .listxattr = subdir_listxattr,
+ .removexattr= subdir_removexattr,
+ .lock = subdir_lock,
+ .bmap = subdir_bmap,
+};
+
+static struct fuse_opt subdir_opts[] = {
+ FUSE_OPT_KEY("-h", 0),
+ FUSE_OPT_KEY("--help", 0),
+ { "subdir=%s", offsetof(struct subdir, base), 0 },
+ { "rellinks", offsetof(struct subdir, rellinks), 1 },
+ { "norellinks", offsetof(struct subdir, rellinks), 0 },
+ FUSE_OPT_END
+};
+
+static void subdir_help(void)
+{
+ fprintf(stderr,
+" -o subdir=DIR prepend this directory to all paths (mandatory)\n"
+" -o [no]rellinks transform absolute symlinks to relative\n");
+}
+
+static int subdir_opt_proc(void *data, const char *arg, int key,
+ struct fuse_args *outargs)
+{
+ (void) data; (void) arg; (void) outargs;
+
+ if (!key) {
+ subdir_help();
+ return -1;
+ }
+
+ return 1;
+}
+
+static struct fuse_fs *subdir_new(struct fuse_args *args,
+ struct fuse_fs *next[])
+{
+ struct fuse_fs *fs;
+ struct subdir *d;
+
+ d = calloc(1, sizeof(struct subdir));
+ if (d == NULL) {
+ fprintf(stderr, "fuse-subdir: memory allocation failed\n");
+ return NULL;
+ }
+
+ if (fuse_opt_parse(args, d, subdir_opts, subdir_opt_proc) == -1)
+ goto out_free;
+
+ if (!next[0] || next[1]) {
+ fprintf(stderr, "fuse-subdir: exactly one next filesystem required\n");
+ goto out_free;
+ }
+
+ if (!d->base) {
+ fprintf(stderr, "fuse-subdir: missing 'subdir' option\n");
+ goto out_free;
+ }
+
+ if (d->base[0] && d->base[strlen(d->base)-1] != '/') {
+ char *tmp = realloc(d->base, strlen(d->base) + 2);
+ if (!tmp) {
+ fprintf(stderr, "fuse-subdir: memory allocation failed\n");
+ goto out_free;
+ }
+ d->base = tmp;
+ strcat(d->base, "/");
+ }
+ d->baselen = strlen(d->base);
+ d->next = next[0];
+ fs = fuse_fs_new(&subdir_oper, sizeof(subdir_oper), d);
+ if (!fs)
+ goto out_free;
+ return fs;
+
+ out_free:
+ free(d->base);
+ free(d);
+ return NULL;
+}
+
+FUSE_REGISTER_MODULE(subdir, subdir_new);