1 files changed, 3968 insertions, 0 deletions

diff --git a/fuse/fuse.c b/fuse/fuse.c
new file mode 100644
index 000000000..448c9cd50
--- /dev/null
+++ b/fuse/fuse.c
@@ -0,0 +1,3968 @@
+/*
+  FUSE: Filesystem in Userspace
+  Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>
+
+  This program can be distributed under the terms of the GNU LGPLv2.
+  See the file COPYING.LIB
+*/
+
+
+/* For pthread_rwlock_t */
+#define _GNU_SOURCE
+
+#include "fuse_i.h"
+#include "fuse_lowlevel.h"
+#include "fuse_opt.h"
+#include "fuse_misc.h"
+#include "fuse_common_compat.h"
+#include "fuse_compat.h"
+#include "fuse_kernel.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <time.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <errno.h>
+#include <signal.h>
+#include <dlfcn.h>
+#include <assert.h>
+#include <sys/param.h>
+#include <sys/uio.h>
+#include <sys/time.h>
+
+#define FUSE_DEFAULT_INTR_SIGNAL SIGUSR1
+
+#define FUSE_UNKNOWN_INO 0xffffffff
+#define OFFSET_MAX 0x7fffffffffffffffLL
+
+struct fuse_config {
+	unsigned int uid;
+	unsigned int gid;
+	unsigned int  umask;
+	double entry_timeout;
+	double negative_timeout;
+	double attr_timeout;
+	double ac_attr_timeout;
+	int ac_attr_timeout_set;
+	int noforget;
+	int debug;
+	int hard_remove;
+	int use_ino;
+	int readdir_ino;
+	int set_mode;
+	int set_uid;
+	int set_gid;
+	int direct_io;
+	int kernel_cache;
+	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;
+	int debug;
+};
+
+struct fusemod_so {
+	void *handle;
+	int ctr;
+};
+
+struct lock_queue_element {
+       struct lock_queue_element *next;
+       pthread_cond_t cond;
+};
+
+struct fuse {
+	struct fuse_session *se;
+	struct node **name_table;
+	size_t name_table_size;
+	struct node **id_table;
+	size_t id_table_size;
+	fuse_ino_t ctr;
+	unsigned int generation;
+	unsigned int hidectr;
+	pthread_mutex_t lock;
+	struct fuse_config conf;
+	int intr_installed;
+	struct fuse_fs *fs;
+	int nullpath_ok;
+	int curr_ticket;
+	struct lock_queue_element *lockq;
+};
+
+struct lock {
+	int type;
+	off64_t start;
+	off64_t end;
+	pid_t pid;
+	uint64_t owner;
+	struct lock *next;
+};
+
+struct node {
+	struct node *name_next;
+	struct node *id_next;
+	fuse_ino_t nodeid;
+	unsigned int generation;
+	int refctr;
+	struct node *parent;
+	char *name;
+	uint64_t nlookup;
+	int open_count;
+	struct timespec stat_updated;
+	struct timespec mtime;
+	off64_t size;
+	struct lock *locks;
+	unsigned int is_hidden : 1;
+	unsigned int cache_valid : 1;
+	int treelock;
+	int ticket;
+};
+
+struct fuse_dh {
+	pthread_mutex_t lock;
+	struct fuse *fuse;
+	fuse_req_t req;
+	char *contents;
+	int allocated;
+	unsigned len;
+	unsigned size;
+	unsigned needlen;
+	int filled;
+	uint64_t fh;
+	int error;
+	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;
+};
+
+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_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;
+	}
+
+	fuse_current_so = so;
+	so->handle = dlopen(soname, RTLD_NOW);
+	fuse_current_so = NULL;
+	if (!so->handle) {
+		fprintf(stderr, "fuse: %s\n", dlerror());
+		goto err;
+	}
+	if (!so->ctr) {
+		fprintf(stderr, "fuse: %s did not register any modules\n",
+			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;
+	}
+	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)
+{
+	size_t hash = nodeid % f->id_table_size;
+	struct node *node;
+
+	for (node = f->id_table[hash]; node != NULL; node = node->id_next)
+		if (node->nodeid == nodeid)
+			return node;
+
+	return NULL;
+}
+
+static struct node *get_node(struct fuse *f, fuse_ino_t nodeid)
+{
+	struct node *node = get_node_nocheck(f, nodeid);
+	if (!node) {
+		fprintf(stderr, "fuse internal error: node %llu not found\n",
+			(unsigned long long) nodeid);
+		abort();
+	}
+	return node;
+}
+
+static void free_node(struct node *node)
+{
+	free(node->name);
+	free(node);
+}
+
+static void unhash_id(struct fuse *f, struct node *node)
+{
+	size_t hash = node->nodeid % f->id_table_size;
+	struct node **nodep = &f->id_table[hash];
+
+	for (; *nodep != NULL; nodep = &(*nodep)->id_next)
+		if (*nodep == node) {
+			*nodep = node->id_next;
+			return;
+		}
+}
+
+static void hash_id(struct fuse *f, struct node *node)
+{
+	size_t hash = node->nodeid % f->id_table_size;
+	node->id_next = f->id_table[hash];
+	f->id_table[hash] = node;
+}
+
+static unsigned int name_hash(struct fuse *f, fuse_ino_t parent,
+			      const char *name)
+{
+	unsigned int hash = *name;
+
+	if (hash)
+		for (name += 1; *name != '\0'; name++)
+			hash = (hash << 5) - hash + *name;
+
+	return (hash + parent) % f->name_table_size;
+}
+
+static void unref_node(struct fuse *f, struct node *node);
+
+static void unhash_name(struct fuse *f, struct node *node)
+{
+	if (node->name) {
+		size_t hash = name_hash(f, node->parent->nodeid, node->name);
+		struct node **nodep = &f->name_table[hash];
+
+		for (; *nodep != NULL; nodep = &(*nodep)->name_next)
+			if (*nodep == node) {
+				*nodep = node->name_next;
+				node->name_next = NULL;
+				unref_node(f, node->parent);
+				free(node->name);
+				node->name = NULL;
+				node->parent = NULL;
+				return;
+			}
+		fprintf(stderr,
+			"fuse internal error: unable to unhash node: %llu\n",
+			(unsigned long long) node->nodeid);
+		abort();
+	}
+}
+
+static int hash_name(struct fuse *f, struct node *node, fuse_ino_t parentid,
+		     const char *name)
+{
+	size_t hash = name_hash(f, parentid, name);
+	struct node *parent = get_node(f, parentid);
+	node->name = strdup(name);
+	if (node->name == NULL)
+		return -1;
+
+	parent->refctr ++;
+	node->parent = parent;
+	node->name_next = f->name_table[hash];
+	f->name_table[hash] = node;
+	return 0;
+}
+
+static void delete_node(struct fuse *f, struct node *node)
+{
+	if (f->conf.debug)
+		fprintf(stderr, "DELETE: %llu\n",
+			(unsigned long long) node->nodeid);
+
+	assert(node->treelock == 0);
+	assert(!node->name);
+	unhash_id(f, node);
+	free_node(node);
+}
+
+static void unref_node(struct fuse *f, struct node *node)
+{
+	assert(node->refctr > 0);
+	node->refctr --;
+	if (!node->refctr)
+		delete_node(f, node);
+}
+
+static fuse_ino_t next_id(struct fuse *f)
+{
+	do {
+		f->ctr = (f->ctr + 1) & 0xffffffff;
+		if (!f->ctr)
+			f->generation ++;
+	} while (f->ctr == 0 || f->ctr == FUSE_UNKNOWN_INO ||
+		 get_node_nocheck(f, f->ctr) != NULL);
+	return f->ctr;
+}
+
+static struct node *lookup_node(struct fuse *f, fuse_ino_t parent,
+				const char *name)
+{
+	size_t hash = name_hash(f, parent, name);
+	struct node *node;
+
+	for (node = f->name_table[hash]; node != NULL; node = node->name_next)
+		if (node->parent->nodeid == parent &&
+		    strcmp(node->name, name) == 0)
+			return node;
+
+	return NULL;
+}
+
+static struct node *find_node(struct fuse *f, fuse_ino_t parent,
+			      const char *name)
+{
+	struct node *node;
+
+	pthread_mutex_lock(&f->lock);
+	if (!name)
+		node = get_node(f, parent);
+	else
+		node = lookup_node(f, parent, name);
+	if (node == NULL) {
+		node = (struct node *) calloc(1, sizeof(struct node));
+		if (node == NULL)
+			goto out_err;
+
+		if (f->conf.noforget)
+			node->nlookup = 1;
+		node->refctr = 1;
+		node->nodeid = next_id(f);
+		node->generation = f->generation;
+		node->open_count = 0;
+		node->is_hidden = 0;
+		node->treelock = 0;
+		node->ticket = 0;
+		if (hash_name(f, node, parent, name) == -1) {
+			free(node);
+			node = NULL;
+			goto out_err;
+		}
+		hash_id(f, node);
+	}
+	node->nlookup ++;
+out_err:
+	pthread_mutex_unlock(&f->lock);
+	return node;
+}
+
+static char *add_name(char **buf, unsigned *bufsize, char *s, const char *name)
+{
+	size_t len = strlen(name);
+
+	if (s - len <= *buf) {
+		unsigned pathlen = *bufsize - (s - *buf);
+		unsigned newbufsize = *bufsize;
+		char *newbuf;
+
+		while (newbufsize < pathlen + len + 1) {
+			if (newbufsize >= 0x80000000)
+				newbufsize = 0xffffffff;
+			else
+				newbufsize *= 2;
+		}
+
+		newbuf = realloc(*buf, newbufsize);
+		if (newbuf == NULL)
+			return NULL;
+
+		*buf = newbuf;
+		s = newbuf + newbufsize - pathlen;
+		memmove(s, newbuf + *bufsize - pathlen, pathlen);
+		*bufsize = newbufsize;
+	}
+	s -= len;
+	strncpy(s, name, len);
+	s--;
+	*s = '/';
+
+	return s;
+}
+
+static void unlock_path(struct fuse *f, fuse_ino_t nodeid, struct node *wnode,
+			struct node *end, int ticket)
+{
+	struct node *node;
+
+	if (wnode) {
+		assert(wnode->treelock == -1);
+		wnode->treelock = 0;
+		if (!wnode->ticket)
+			wnode->ticket = ticket;
+	}
+
+	for (node = get_node(f, nodeid);
+	     node != end && node->nodeid != FUSE_ROOT_ID; node = node->parent) {
+		assert(node->treelock > 0);
+		node->treelock--;
+		if (!node->ticket)
+			node->ticket = ticket;
+	}
+}
+
+static int try_get_path(struct fuse *f, fuse_ino_t nodeid, const char *name,
+			char **path, struct node **wnodep, int ticket)
+{
+	unsigned bufsize = 256;
+	char *buf;
+	char *s;
+	struct node *node;
+	struct node *wnode = NULL;
+	int err;
+
+	*path = NULL;
+
+	buf = malloc(bufsize);
+	if (buf == NULL)
+		return -ENOMEM;
+
+	s = buf + bufsize - 1;
+	*s = '\0';
+
+	if (name != NULL) {
+		s = add_name(&buf, &bufsize, s, name);
+		err = -ENOMEM;
+		if (s == NULL)
+			goto out_free;
+	}
+
+	if (wnodep) {
+		assert(ticket);
+		wnode = lookup_node(f, nodeid, name);
+		if (wnode) {
+			if (wnode->treelock != 0 ||
+			    (wnode->ticket && wnode->ticket != ticket)) {
+				if (!wnode->ticket)
+					wnode->ticket = ticket;
+				err = -EAGAIN;
+				goto out_free;
+			}
+			wnode->treelock = -1;
+			wnode->ticket = 0;
+		}
+	}
+
+	err = 0;
+	for (node = get_node(f, nodeid); node->nodeid != FUSE_ROOT_ID;
+	     node = node->parent) {
+		err = -ENOENT;
+		if (node->name == NULL || node->parent == NULL)
+			goto out_unlock;
+
+		err = -ENOMEM;
+		s = add_name(&buf, &bufsize, s, node->name);
+		if (s == NULL)
+			goto out_unlock;
+
+		if (ticket) {
+			err = -EAGAIN;
+			if (node->treelock == -1 ||
+			    (node->ticket && node->ticket != ticket))
+				goto out_unlock;
+
+			node->treelock++;
+			node->ticket = 0;
+		}
+	}
+
+	if (s[0])
+		memmove(buf, s, bufsize - (s - buf));
+	else
+		strcpy(buf, "/");
+
+	*path = buf;
+	if (wnodep)
+		*wnodep = wnode;
+
+	return 0;
+
+ out_unlock:
+	if (ticket)
+		unlock_path(f, nodeid, wnode, node, ticket);
+ out_free:
+	free(buf);
+
+	return err;
+}
+
+static void wake_up_first(struct fuse *f)
+{
+	if (f->lockq)
+		pthread_cond_signal(&f->lockq->cond);
+}
+
+static void wake_up_next(struct lock_queue_element *qe)
+{
+	if (qe->next)
+		pthread_cond_signal(&qe->next->cond);
+}
+
+static int get_ticket(struct fuse *f)
+{
+	do f->curr_ticket++;
+	while (f->curr_ticket == 0);
+
+	return f->curr_ticket;
+}
+
+static void debug_path(struct fuse *f, const char *msg, fuse_ino_t nodeid,
+		       const char *name, int wr)
+{
+	if (f->conf.debug) {
+		struct node *wnode = NULL;
+
+		if (wr)
+			wnode = lookup_node(f, nodeid, name);
+
+		if (wnode)
+			fprintf(stderr, "%s %li (w)\n",	msg, wnode->nodeid);
+		else
+			fprintf(stderr, "%s %li\n", msg, nodeid);
+	}
+}
+
+static void queue_path(struct fuse *f, struct lock_queue_element *qe,
+		       fuse_ino_t nodeid, const char *name, int wr)
+{
+	struct lock_queue_element **qp;
+
+	debug_path(f, "QUEUE PATH", nodeid, name, wr);
+	pthread_cond_init(&qe->cond, NULL);
+	qe->next = NULL;
+	for (qp = &f->lockq; *qp != NULL; qp = &(*qp)->next);
+	*qp = qe;
+}
+
+static void dequeue_path(struct fuse *f, struct lock_queue_element *qe,
+			 fuse_ino_t nodeid, const char *name, int wr)
+{
+	struct lock_queue_element **qp;
+
+	debug_path(f, "DEQUEUE PATH", nodeid, name, wr);
+	pthread_cond_destroy(&qe->cond);
+	for (qp = &f->lockq; *qp != qe; qp = &(*qp)->next);
+	*qp = qe->next;
+}
+
+static void wait_on_path(struct fuse *f, struct lock_queue_element *qe,
+			 fuse_ino_t nodeid, const char *name, int wr)
+{
+	debug_path(f, "WAIT ON PATH", nodeid, name, wr);
+	pthread_cond_wait(&qe->cond, &f->lock);
+}
+
+static int get_path_common(struct fuse *f, fuse_ino_t nodeid, const char *name,
+			   char **path, struct node **wnode)
+{
+	int err;
+	int ticket;
+
+	pthread_mutex_lock(&f->lock);
+	ticket = get_ticket(f);
+	err = try_get_path(f, nodeid, name, path, wnode, ticket);
+	if (err == -EAGAIN) {
+		struct lock_queue_element qe;
+
+		queue_path(f, &qe, nodeid, name, !!wnode);
+		do {
+			wait_on_path(f, &qe, nodeid, name, !!wnode);
+			err = try_get_path(f, nodeid, name, path, wnode,
+					   ticket);
+			wake_up_next(&qe);
+		} while (err == -EAGAIN);
+		dequeue_path(f, &qe, nodeid, name, !!wnode);
+	}
+	pthread_mutex_unlock(&f->lock);
+
+	return err;
+}
+
+static int get_path(struct fuse *f, fuse_ino_t nodeid, char **path)
+{
+	return get_path_common(f, nodeid, NULL, path, NULL);
+}
+
+static int get_path_nullok(struct fuse *f, fuse_ino_t nodeid, char **path)
+{
+	int err = get_path_common(f, nodeid, NULL, path, NULL);
+
+	if (err == -ENOENT && f->nullpath_ok)
+		err = 0;
+
+	return err;
+}
+
+static int get_path_name(struct fuse *f, fuse_ino_t nodeid, const char *name,
+			 char **path)
+{
+	return get_path_common(f, nodeid, name, path, NULL);
+}
+
+static int get_path_wrlock(struct fuse *f, fuse_ino_t nodeid, const char *name,
+			   char **path, struct node **wnode)
+{
+	return get_path_common(f, nodeid, name, path, wnode);
+}
+
+static int try_get_path2(struct fuse *f, fuse_ino_t nodeid1, const char *name1,
+			 fuse_ino_t nodeid2, const char *name2,
+			 char **path1, char **path2,
+			 struct node **wnode1, struct node **wnode2,
+			 int ticket)
+{
+	int err;
+
+	/* FIXME: locking two paths needs deadlock checking */
+	err = try_get_path(f, nodeid1, name1, path1, wnode1, ticket);
+	if (!err) {
+		err = try_get_path(f, nodeid2, name2, path2, wnode2, ticket);
+		if (err)
+			unlock_path(f, nodeid1, wnode1 ? *wnode1 : NULL, NULL,
+				    ticket);
+	}
+	return err;
+}
+
+static int get_path2(struct fuse *f, fuse_ino_t nodeid1, const char *name1,
+		     fuse_ino_t nodeid2, const char *name2,
+		     char **path1, char **path2,
+		     struct node **wnode1, struct node **wnode2)
+{
+	int err;
+	int ticket;
+
+	pthread_mutex_lock(&f->lock);
+	ticket = get_ticket(f);
+	err = try_get_path2(f, nodeid1, name1, nodeid2, name2,
+			    path1, path2, wnode1, wnode2, ticket);
+	if (err == -EAGAIN) {
+		struct lock_queue_element qe;
+
+		queue_path(f, &qe, nodeid1, name1, !!wnode1);
+		debug_path(f, "      path2", nodeid2, name2, !!wnode2);
+		do {
+			wait_on_path(f, &qe, nodeid1, name1, !!wnode1);
+			debug_path(f, "        path2", nodeid2, name2, !!wnode2);
+			err = try_get_path2(f, nodeid1, name1, nodeid2, name2,
+					    path1, path2, wnode1, wnode2,
+					    ticket);
+			wake_up_next(&qe);
+		} while (err == -EAGAIN);
+		dequeue_path(f, &qe, nodeid1, name1, !!wnode1);
+		debug_path(f, "        path2", nodeid2, name2, !!wnode2);
+	}
+	pthread_mutex_unlock(&f->lock);
+
+	return err;
+}
+
+static void free_path_wrlock(struct fuse *f, fuse_ino_t nodeid,
+			     struct node *wnode, char *path)
+{
+	pthread_mutex_lock(&f->lock);
+	unlock_path(f, nodeid, wnode, NULL, 0);
+	wake_up_first(f);
+	pthread_mutex_unlock(&f->lock);
+	free(path);
+}
+
+static void free_path(struct fuse *f, fuse_ino_t nodeid, char *path)
+{
+	if (path)
+		free_path_wrlock(f, nodeid, NULL, path);
+}
+
+static void free_path2(struct fuse *f, fuse_ino_t nodeid1, fuse_ino_t nodeid2,
+		       struct node *wnode1, struct node *wnode2,
+		       char *path1, char *path2)
+{
+	pthread_mutex_lock(&f->lock);
+	unlock_path(f, nodeid1, wnode1, NULL, 0);
+	unlock_path(f, nodeid2, wnode2, NULL, 0);
+	wake_up_first(f);
+	pthread_mutex_unlock(&f->lock);
+	free(path1);
+	free(path2);
+}
+
+static void forget_node(struct fuse *f, fuse_ino_t nodeid, uint64_t nlookup)
+{
+	struct node *node;
+	if (nodeid == FUSE_ROOT_ID)
+		return;
+	pthread_mutex_lock(&f->lock);
+	node = get_node(f, nodeid);
+
+	/*
+	 * Node may still be locked due to interrupt idiocy in open,
+	 * create and opendir
+	 */
+	while (node->nlookup == nlookup && node->treelock) {
+		struct lock_queue_element qe;
+
+		queue_path(f, &qe, node->nodeid, NULL, 0);
+		do {
+			wait_on_path(f, &qe, node->nodeid, NULL, 0);
+			wake_up_next(&qe);
+
+		} while (node->nlookup == nlookup && node->treelock);
+		dequeue_path(f, &qe, node->nodeid, NULL, 0);
+	}
+
+	assert(node->nlookup >= nlookup);
+	node->nlookup -= nlookup;
+	if (!node->nlookup) {
+		unhash_name(f, node);
+		unref_node(f, node);
+	}
+	pthread_mutex_unlock(&f->lock);
+}
+
+static void unlink_node(struct fuse *f, struct node *node)
+{
+	if (f->conf.noforget) {
+		assert(node->nlookup > 1);
+		node->nlookup--;
+	}
+	unhash_name(f, node);
+}
+
+static void remove_node(struct fuse *f, fuse_ino_t dir, const char *name)
+{
+	struct node *node;
+
+	pthread_mutex_lock(&f->lock);
+	node = lookup_node(f, dir, name);
+	if (node != NULL)
+		unlink_node(f, node);
+	pthread_mutex_unlock(&f->lock);
+}
+
+static int rename_node(struct fuse *f, fuse_ino_t olddir, const char *oldname,
+		       fuse_ino_t newdir, const char *newname, int hide)
+{
+	struct node *node;
+	struct node *newnode;
+	int err = 0;
+
+	pthread_mutex_lock(&f->lock);
+	node  = lookup_node(f, olddir, oldname);
+	newnode	 = lookup_node(f, newdir, newname);
+	if (node == NULL)
+		goto out;
+
+	if (newnode != NULL) {
+		if (hide) {
+			fprintf(stderr, "fuse: hidden file got created during hiding\n");
+			err = -EBUSY;
+			goto out;
+		}
+		unlink_node(f, newnode);
+	}
+
+	unhash_name(f, node);
+	if (hash_name(f, node, newdir, newname) == -1) {
+		err = -ENOMEM;
+		goto out;
+	}
+
+	if (hide)
+		node->is_hidden = 1;
+
+out:
+	pthread_mutex_unlock(&f->lock);
+	return err;
+}
+
+static void set_stat(struct fuse *f, fuse_ino_t nodeid, struct stat *stbuf)
+{
+	if (!f->conf.use_ino)
+		stbuf->st_ino = nodeid;
+	if (f->conf.set_mode)
+		stbuf->st_mode = (stbuf->st_mode & S_IFMT) |
+				 (0777 & ~f->conf.umask);
+	if (f->conf.set_uid)
+		stbuf->st_uid = f->conf.uid;
+	if (f->conf.set_gid)
+		stbuf->st_gid = f->conf.gid;
+}
+
+static struct fuse *req_fuse(fuse_req_t req)
+{
+	return (struct fuse *) fuse_req_userdata(req);
+}
+
+static void fuse_intr_sighandler(int sig)
+{
+	(void) sig;
+	/* Nothing to do */
+}
+
+struct fuse_intr_data {
+	pthread_t id;
+	pthread_cond_t cond;
+	int finished;
+};
+
+static void fuse_interrupt(fuse_req_t req, void *d_)
+{
+	struct fuse_intr_data *d = d_;
+	struct fuse *f = req_fuse(req);
+
+	if (d->id == pthread_self())
+		return;
+
+	pthread_mutex_lock(&f->lock);
+	while (!d->finished) {
+		struct timeval now;
+		struct timespec timeout;
+
+		pthread_kill(d->id, f->conf.intr_signal);
+		gettimeofday(&now, NULL);
+		timeout.tv_sec = now.tv_sec + 1;
+		timeout.tv_nsec = now.tv_usec * 1000;
+		pthread_cond_timedwait(&d->cond, &f->lock, &timeout);
+	}
+	pthread_mutex_unlock(&f->lock);
+}
+
+static void fuse_do_finish_interrupt(struct fuse *f, fuse_req_t req,
+				     struct fuse_intr_data *d)
+{
+	pthread_mutex_lock(&f->lock);
+	d->finished = 1;
+	pthread_cond_broadcast(&d->cond);
+	pthread_mutex_unlock(&f->lock);
+	fuse_req_interrupt_func(req, NULL, NULL);
+	pthread_cond_destroy(&d->cond);
+}
+
+static void fuse_do_prepare_interrupt(fuse_req_t req, struct fuse_intr_data *d)
+{
+	d->id = pthread_self();
+	pthread_cond_init(&d->cond, NULL);
+	d->finished = 0;
+	fuse_req_interrupt_func(req, fuse_interrupt, d);
+}
+
+static inline void fuse_finish_interrupt(struct fuse *f, fuse_req_t req,
+					 struct fuse_intr_data *d)
+{
+	if (f->conf.intr)
+		fuse_do_finish_interrupt(f, req, d);
+}
+
+static inline void fuse_prepare_interrupt(struct fuse *f, fuse_req_t req,
+					  struct fuse_intr_data *d)
+{
+	if (f->conf.intr)
+		fuse_do_prepare_interrupt(req, d);
+}
+
+#ifndef __FreeBSD__
+
+static int fuse_compat_open(struct fuse_fs *fs, const char *path,
+			    struct fuse_file_info *fi)
+{
+	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_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) {
+		if (fs->debug)
+			fprintf(stderr, "getattr %s\n", path);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "fgetattr[%llu] %s\n",
+				(unsigned long long) fi->fh, path);
+
+		return fs->op.fgetattr(path, buf, fi);
+	} else if (path && fs->op.getattr) {
+		if (fs->debug)
+			fprintf(stderr, "getattr %s\n", path);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "rename %s %s\n", oldpath, newpath);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "unlink %s\n", path);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "rmdir %s\n", path);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "symlink %s %s\n", linkname, path);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "link %s %s\n", oldpath, newpath);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "release%s[%llu] flags: 0x%x\n",
+				fi->flush ? "+flush" : "",
+				(unsigned long long) fi->fh, fi->flags);
+
+		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) {
+		int err;
+
+		if (fs->debug)
+			fprintf(stderr, "opendir flags: 0x%x %s\n", fi->flags,
+				path);
+
+		err = fuse_compat_opendir(fs, path, fi);
+
+		if (fs->debug && !err)
+			fprintf(stderr, "   opendir[%lli] flags: 0x%x %s\n",
+				(unsigned long long) fi->fh, fi->flags, path);
+
+		return err;
+	} 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) {
+		int err;
+
+		if (fs->debug)
+			fprintf(stderr, "open flags: 0x%x %s\n", fi->flags,
+				path);
+
+		err = fuse_compat_open(fs, path, fi);
+
+		if (fs->debug && !err)
+			fprintf(stderr, "   open[%lli] flags: 0x%x %s\n",
+				(unsigned long long) fi->fh, fi->flags, path);
+
+		return err;
+	} else {
+		return 0;
+	}
+}
+
+int fuse_fs_read(struct fuse_fs *fs, const char *path, char *buf, size_t size,
+		 off64_t off, struct fuse_file_info *fi)
+{
+	fuse_get_context()->private_data = fs->user_data;
+	if (fs->op.read) {
+		int res;
+
+		if (fs->debug)
+			fprintf(stderr,
+				"read[%llu] %lu bytes from %llu flags: 0x%x\n",
+				(unsigned long long) fi->fh,
+				(unsigned long) size, (unsigned long long) off,
+				fi->flags);
+
+		res = fs->op.read(path, buf, size, off, fi);
+
+		if (fs->debug && res >= 0)
+			fprintf(stderr, "   read[%llu] %u bytes from %llu\n",
+				(unsigned long long) fi->fh, res,
+				(unsigned long long) off);
+		if (res > (int) size)
+			fprintf(stderr, "fuse: read too many bytes\n");
+
+		return res;
+	} else {
+		return -ENOSYS;
+	}
+}
+
+int fuse_fs_write(struct fuse_fs *fs, const char *path, const char *buf,
+		  size_t size, off64_t off, struct fuse_file_info *fi)
+{
+	fuse_get_context()->private_data = fs->user_data;
+	if (fs->op.write) {
+		int res;
+
+		if (fs->debug)
+			fprintf(stderr,
+				"write%s[%llu] %lu bytes to %llu flags: 0x%x\n",
+				fi->writepage ? "page" : "",
+				(unsigned long long) fi->fh,
+				(unsigned long) size, (unsigned long long) off,
+				fi->flags);
+
+		res = fs->op.write(path, buf, size, off, fi);
+
+		if (fs->debug && res >= 0)
+			fprintf(stderr, "   write%s[%llu] %u bytes to %llu\n",
+				fi->writepage ? "page" : "",
+				(unsigned long long) fi->fh, res,
+				(unsigned long long) off);
+		if (res > (int) size)
+			fprintf(stderr, "fuse: wrote too many bytes\n");
+
+		return res;
+	} 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) {
+		if (fs->debug)
+			fprintf(stderr, "fsync[%llu] datasync: %i\n",
+				(unsigned long long) fi->fh, datasync);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "fsyncdir[%llu] datasync: %i\n",
+				(unsigned long long) fi->fh, datasync);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "flush[%llu]\n",
+				(unsigned long long) fi->fh);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "statfs %s\n", path);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "releasedir[%llu] flags: 0x%x\n",
+				(unsigned long long) fi->fh, fi->flags);
+
+		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 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;
+}
+
+int fuse_fs_readdir(struct fuse_fs *fs, const char *path, void *buf,
+		    fuse_fill_dir_t filler, off64_t off,
+		    struct fuse_file_info *fi)
+{
+	fuse_get_context()->private_data = fs->user_data;
+	if (fs->op.readdir) {
+		if (fs->debug)
+			fprintf(stderr, "readdir[%llu] from %llu\n",
+				(unsigned long long) fi->fh,
+				(unsigned long long) off);
+
+		return fs->op.readdir(path, buf, filler, off, fi);
+	} else if (fs->op.getdir) {
+		struct fuse_dirhandle dh;
+
+		if (fs->debug)
+			fprintf(stderr, "getdir[%llu]\n",
+				(unsigned long long) fi->fh);
+
+		dh.filler = filler;
+		dh.buf = buf;
+		return fs->op.getdir(path, &dh, fill_dir_old);
+	} else {
+		return -ENOSYS;
+	}
+}
+
+int fuse_fs_create(struct fuse_fs *fs, const char *path, mode_t mode,
+		   struct fuse_file_info *fi)
+{
+	fuse_get_context()->private_data = fs->user_data;
+	if (fs->op.create) {
+		int err;
+
+		if (fs->debug)
+			fprintf(stderr,
+				"create flags: 0x%x %s 0%o umask=0%03o\n",
+				fi->flags, path, mode,
+				fuse_get_context()->umask);
+
+		err = fs->op.create(path, mode, fi);
+
+		if (fs->debug && !err)
+			fprintf(stderr, "   create[%llu] flags: 0x%x %s\n",
+				(unsigned long long) fi->fh, fi->flags, path);
+
+		return err;
+	} else {
+		return -ENOSYS;
+	}
+}
+
+int fuse_fs_lock(struct fuse_fs *fs, const char *path,
+		 struct fuse_file_info *fi, int cmd, struct flock *lock)
+{
+	fuse_get_context()->private_data = fs->user_data;
+	if (fs->op.lock) {
+		if (fs->debug)
+			fprintf(stderr, "lock[%llu] %s %s start: %llu len: %llu pid: %llu\n",
+				(unsigned long long) fi->fh,
+				(cmd == F_GETLK ? "F_GETLK" :
+				 (cmd == F_SETLK ? "F_SETLK" :
+				  (cmd == F_SETLKW ? "F_SETLKW" : "???"))),
+				(lock->l_type == F_RDLCK ? "F_RDLCK" :
+				 (lock->l_type == F_WRLCK ? "F_WRLCK" :
+				  (lock->l_type == F_UNLCK ? "F_UNLCK" :
+				   "???"))),
+				(unsigned long long) lock->l_start,
+				(unsigned long long) lock->l_len,
+				(unsigned long long) lock->l_pid);
+
+		return fs->op.lock(path, fi, cmd, lock);
+	} else {
+		return -ENOSYS;
+	}
+}
+
+int fuse_fs_chown(struct fuse_fs *fs, const char *path, uid_t uid, gid_t gid)
+{
+	fuse_get_context()->private_data = fs->user_data;
+	if (fs->op.chown) {
+		if (fs->debug)
+			fprintf(stderr, "chown %s %lu %lu\n", path,
+				(unsigned long) uid, (unsigned long) gid);
+
+		return fs->op.chown(path, uid, gid);
+	} else {
+		return -ENOSYS;
+	}
+}
+
+int fuse_fs_truncate(struct fuse_fs *fs, const char *path, off64_t size)
+{
+	fuse_get_context()->private_data = fs->user_data;
+	if (fs->op.truncate) {
+		if (fs->debug)
+			fprintf(stderr, "truncate %s %llu\n", path,
+				(unsigned long long) size);
+
+		return fs->op.truncate(path, size);
+	} else {
+		return -ENOSYS;
+	}
+}
+
+int fuse_fs_ftruncate(struct fuse_fs *fs, const char *path, off64_t size,
+		      struct fuse_file_info *fi)
+{
+	fuse_get_context()->private_data = fs->user_data;
+	if (fs->op.ftruncate) {
+		if (fs->debug)
+			fprintf(stderr, "ftruncate[%llu] %s %llu\n",
+				(unsigned long long) fi->fh, path,
+				(unsigned long long) size);
+
+		return fs->op.ftruncate(path, size, fi);
+	} else if (path && fs->op.truncate) {
+		if (fs->debug)
+			fprintf(stderr, "truncate %s %llu\n", path,
+				(unsigned long long) size);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "utimens %s %li.%09lu %li.%09lu\n",
+				path, tv[0].tv_sec, tv[0].tv_nsec,
+				tv[1].tv_sec, tv[1].tv_nsec);
+
+		return fs->op.utimens(path, tv);
+	} else if(fs->op.utime) {
+		struct utimbuf buf;
+
+		if (fs->debug)
+			fprintf(stderr, "utime %s %li %li\n", path,
+				tv[0].tv_sec, tv[1].tv_sec);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "access %s 0%o\n", path, mask);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "readlink %s %lu\n", path,
+				(unsigned long) len);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "mknod %s 0%o 0x%llx umask=0%03o\n",
+				path, mode, (unsigned long long) rdev,
+				fuse_get_context()->umask);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "mkdir %s 0%o umask=0%03o\n",
+				path, mode, fuse_get_context()->umask);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "setxattr %s %s %lu 0x%x\n",
+				path, name, (unsigned long) size, flags);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "getxattr %s %s %lu\n",
+				path, name, (unsigned long) size);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "listxattr %s %lu\n",
+				path, (unsigned long) size);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "bmap %s blocksize: %lu index: %llu\n",
+				path, (unsigned long) blocksize,
+				(unsigned long long) *idx);
+
+		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) {
+		if (fs->debug)
+			fprintf(stderr, "removexattr %s %s\n", path, name);
+
+		return fs->op.removexattr(path, name);
+	} else {
+		return -ENOSYS;
+	}
+}
+
+int fuse_fs_ioctl(struct fuse_fs *fs, const char *path, int cmd, void *arg,
+		  struct fuse_file_info *fi, unsigned int flags, void *data)
+{
+	fuse_get_context()->private_data = fs->user_data;
+	if (fs->op.ioctl) {
+		if (fs->debug)
+			fprintf(stderr, "ioctl[%llu] 0x%x flags: 0x%x\n",
+				(unsigned long long) fi->fh, cmd, flags);
+
+		return fs->op.ioctl(path, cmd, arg, fi, flags, data);
+	} else
+		return -ENOSYS;
+}
+
+int fuse_fs_poll(struct fuse_fs *fs, const char *path,
+		 struct fuse_file_info *fi, struct fuse_pollhandle *ph,
+		 unsigned *reventsp)
+{
+	fuse_get_context()->private_data = fs->user_data;
+	if (fs->op.poll) {
+		int res;
+
+		if (fs->debug)
+			fprintf(stderr, "poll[%llu] ph: %p\n",
+				(unsigned long long) fi->fh, ph);
+
+		res = fs->op.poll(path, fi, ph, reventsp);
+
+		if (fs->debug && !res)
+			fprintf(stderr, "   poll[%llu] revents: 0x%x\n",
+				(unsigned long long) fi->fh, *reventsp);
+
+		return res;
+	} else
+		return -ENOSYS;
+}
+
+static int is_open(struct fuse *f, fuse_ino_t dir, const char *name)
+{
+	struct node *node;
+	int isopen = 0;
+	pthread_mutex_lock(&f->lock);
+	node = lookup_node(f, dir, name);
+	if (node && node->open_count > 0)
+		isopen = 1;
+	pthread_mutex_unlock(&f->lock);
+	return isopen;
+}
+
+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;
+	struct node *newnode;
+	char *newpath;
+	int res;
+	int failctr = 10;
+
+	do {
+		pthread_mutex_lock(&f->lock);
+		node = lookup_node(f, dir, oldname);
+		if (node == NULL) {
+			pthread_mutex_unlock(&f->lock);
+			return NULL;
+		}
+		do {
+			f->hidectr ++;
+			snprintf(newname, bufsize, ".fuse_hidden%08x%08x",
+				 (unsigned int) node->nodeid, f->hidectr);
+			newnode = lookup_node(f, dir, newname);
+		} while(newnode);
+
+		try_get_path(f, dir, newname, &newpath, NULL, 0);
+		pthread_mutex_unlock(&f->lock);
+
+		if (!newpath)
+			break;
+
+		res = fuse_fs_getattr(f->fs, newpath, &buf);
+		if (res == -ENOENT)
+			break;
+		free(newpath);
+		newpath = NULL;
+	} while(res == 0 && --failctr);
+
+	return newpath;
+}
+
+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;
+
+	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 &&
+		ST_MTIM_NSEC(stbuf) == ts->tv_nsec;
+}
+
+#ifndef CLOCK_MONOTONIC
+#define CLOCK_MONOTONIC CLOCK_REALTIME
+#endif
+
+static void curr_time(struct timespec *now)
+{
+	static clockid_t clockid = CLOCK_MONOTONIC;
+	int res = clock_gettime(clockid, now);
+	if (res == -1 && errno == EINVAL) {
+		clockid = CLOCK_REALTIME;
+		res = clock_gettime(clockid, now);
+	}
+	if (res == -1) {
+		perror("fuse: clock_gettime");
+		abort();
+	}
+}
+
+static void update_stat(struct node *node, const struct stat *stbuf)
+{
+	if (node->cache_valid && (!mtime_eq(stbuf, &node->mtime) ||
+				  stbuf->st_size != node->size))
+		node->cache_valid = 0;
+	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_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)
+		res = fuse_fs_fgetattr(f->fs, path, &e->attr, fi);
+	else
+		res = fuse_fs_getattr(f->fs, path, &e->attr);
+	if (res == 0) {
+		struct node *node;
+
+		node = find_node(f, nodeid, name);
+		if (node == NULL)
+			res = -ENOMEM;
+		else {
+			e->ino = node->nodeid;
+			e->generation = node->generation;
+			e->entry_timeout = f->conf.entry_timeout;
+			e->attr_timeout = f->conf.attr_timeout;
+			if (f->conf.auto_cache) {
+				pthread_mutex_lock(&f->lock);
+				update_stat(node, &e->attr);
+				pthread_mutex_unlock(&f->lock);
+			}
+			set_stat(f, e->ino, &e->attr);
+			if (f->conf.debug)
+				fprintf(stderr, "   NODEID: %lu\n",
+					(unsigned long) e->ino);
+		}
+	}
+	return res;
+}
+
+static struct fuse_context_i *fuse_get_context_internal(void)
+{
+	struct fuse_context_i *c;
+
+	c = (struct fuse_context_i *) pthread_getspecific(fuse_context_key);
+	if (c == NULL) {
+		c = (struct fuse_context_i *)
+			malloc(sizeof(struct fuse_context_i));
+		if (c == NULL) {
+			/* This is hard to deal with properly, so just
+			   abort.  If memory is so low that the
+			   context cannot be allocated, there's not
+			   much hope for the filesystem anyway */
+			fprintf(stderr, "fuse: failed to allocate thread specific data\n");
+			abort();
+		}
+		pthread_setspecific(fuse_context_key, c);
+	}
+	return c;
+}
+
+static void fuse_freecontext(void *data)
+{
+	free(data);
+}
+
+static int fuse_create_context_key(void)
+{
+	int err = 0;
+	pthread_mutex_lock(&fuse_context_lock);
+	if (!fuse_context_ref) {
+		err = pthread_key_create(&fuse_context_key, fuse_freecontext);
+		if (err) {
+			fprintf(stderr, "fuse: failed to create thread specific key: %s\n",
+				strerror(err));
+			pthread_mutex_unlock(&fuse_context_lock);
+			return -1;
+		}
+	}
+	fuse_context_ref++;
+	pthread_mutex_unlock(&fuse_context_lock);
+	return 0;
+}
+
+static void fuse_delete_context_key(void)
+{
+	pthread_mutex_lock(&fuse_context_lock);
+	fuse_context_ref--;
+	if (!fuse_context_ref) {
+		free(pthread_getspecific(fuse_context_key));
+		pthread_key_delete(fuse_context_key);
+	}
+	pthread_mutex_unlock(&fuse_context_lock);
+}
+
+static struct fuse *req_fuse_prepare(fuse_req_t req)
+{
+	struct fuse_context_i *c = fuse_get_context_internal();
+	const struct fuse_ctx *ctx = fuse_req_ctx(req);
+	c->req = req;
+	c->ctx.fuse = req_fuse(req);
+	c->ctx.uid = ctx->uid;
+	c->ctx.gid = ctx->gid;
+	c->ctx.pid = ctx->pid;
+	c->ctx.umask = ctx->umask;
+	return c->ctx.fuse;
+}
+
+static inline void reply_err(fuse_req_t req, int err)
+{
+	/* fuse_reply_err() uses non-negated errno values */
+	fuse_reply_err(req, -err);
+}
+
+static void reply_entry(fuse_req_t req, const struct fuse_entry_param *e,
+			int err)
+{
+	if (!err) {
+		struct fuse *f = req_fuse(req);
+		if (fuse_reply_entry(req, e) == -ENOENT) {
+			/* Skip forget for negative result */
+			if  (e->ino != 0)
+				forget_node(f, e->ino, 1);
+		}
+	} else
+		reply_err(req, err);
+}
+
+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;
+	conn->want |= FUSE_CAP_EXPORT_SUPPORT;
+	fuse_fs_init(f->fs, conn);
+}
+
+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;
+	fuse_fs_destroy(f->fs);
+	f->fs = NULL;
+}
+
+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;
+	char *path;
+	int err;
+	struct node *dot = NULL;
+
+	if (name[0] == '.') {
+		int len = strlen(name);
+
+		if (len == 1 || (name[1] == '.' && len == 2)) {
+			pthread_mutex_lock(&f->lock);
+			if (len == 1) {
+				if (f->conf.debug)
+					fprintf(stderr, "LOOKUP-DOT\n");
+				dot = get_node_nocheck(f, parent);
+				if (dot == NULL) {
+					pthread_mutex_unlock(&f->lock);
+					reply_entry(req, &e, -ESTALE);
+					return;
+				}
+				dot->refctr++;
+			} else {
+				if (f->conf.debug)
+					fprintf(stderr, "LOOKUP-DOTDOT\n");
+				parent = get_node(f, parent)->parent->nodeid;
+			}
+			pthread_mutex_unlock(&f->lock);
+			name = NULL;
+		}
+	}
+
+	err = get_path_name(f, parent, name, &path);
+	if (!err) {
+		struct fuse_intr_data d;
+		if (f->conf.debug)
+			fprintf(stderr, "LOOKUP %s\n", path);
+		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(f, parent, path);
+	}
+	if (dot) {
+		pthread_mutex_lock(&f->lock);
+		unref_node(f, dot);
+		pthread_mutex_unlock(&f->lock);
+	}
+	reply_entry(req, &e, err);
+}
+
+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)
+		fprintf(stderr, "FORGET %llu/%lu\n", (unsigned long long)ino,
+			nlookup);
+	forget_node(f, ino, nlookup);
+	fuse_reply_none(req);
+}
+
+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;
+	char *path;
+	int err;
+
+	memset(&buf, 0, sizeof(buf));
+
+	if (fi != NULL)
+		err = get_path_nullok(f, ino, &path);
+	else
+		err = get_path(f, ino, &path);
+	if (!err) {
+		struct fuse_intr_data d;
+		fuse_prepare_interrupt(f, req, &d);
+		if (fi)
+			err = fuse_fs_fgetattr(f->fs, path, &buf, fi);
+		else
+			err = fuse_fs_getattr(f->fs, path, &buf);
+		fuse_finish_interrupt(f, req, &d);
+		free_path(f, ino, path);
+	}
+	if (!err) {
+		if (f->conf.auto_cache) {
+			pthread_mutex_lock(&f->lock);
+			update_stat(get_node(f, ino), &buf);
+			pthread_mutex_unlock(&f->lock);
+		}
+		set_stat(f, ino, &buf);
+		fuse_reply_attr(req, &buf, f->conf.attr_timeout);
+	} else
+		reply_err(req, err);
+}
+
+int fuse_fs_chmod(struct fuse_fs *fs, const char *path, mode_t mode)
+{
+	fuse_get_context()->private_data = fs->user_data;
+	if (fs->op.chmod)
+		return fs->op.chmod(path, mode);
+	else
+		return -ENOSYS;
+}
+
+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;
+	char *path;
+	int err;
+
+	err = get_path(f, ino, &path);
+	if (!err) {
+		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(f, ino, path);
+	}
+	if (!err) {
+		if (f->conf.auto_cache) {
+			pthread_mutex_lock(&f->lock);
+			update_stat(get_node(f, ino), &buf);
+			pthread_mutex_unlock(&f->lock);
+		}
+		set_stat(f, ino, &buf);
+		fuse_reply_attr(req, &buf, f->conf.attr_timeout);
+	} else
+		reply_err(req, err);
+}
+
+static void fuse_lib_access(fuse_req_t req, fuse_ino_t ino, int mask)
+{
+	struct fuse *f = req_fuse_prepare(req);
+	char *path;
+	int err;
+
+	err = get_path(f, ino, &path);
+	if (!err) {
+		struct fuse_intr_data d;
+
+		fuse_prepare_interrupt(f, req, &d);
+		err = fuse_fs_access(f->fs, path, mask);
+		fuse_finish_interrupt(f, req, &d);
+		free_path(f, ino, path);
+	}
+	reply_err(req, err);
+}
+
+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];
+	char *path;
+	int err;
+
+	err = get_path(f, ino, &path);
+	if (!err) {
+		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(f, ino, path);
+	}
+	if (!err) {
+		linkname[PATH_MAX] = '\0';
+		fuse_reply_readlink(req, linkname);
+	} else
+		reply_err(req, err);
+}
+
+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;
+	char *path;
+	int err;
+
+	err = get_path_name(f, parent, name, &path);
+	if (!err) {
+		struct fuse_intr_data d;
+
+		fuse_prepare_interrupt(f, req, &d);
+		err = -ENOSYS;
+		if (S_ISREG(mode)) {
+			struct fuse_file_info fi;
+
+			memset(&fi, 0, sizeof(fi));
+			fi.flags = O_CREAT | O_EXCL | O_WRONLY;
+			err = fuse_fs_create(f->fs, path, mode, &fi);
+			if (!err) {
+				err = lookup_path(f, parent, name, path, &e,
+						  &fi);
+				fuse_fs_release(f->fs, path, &fi);
+			}
+		}
+		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(f, parent, path);
+	}
+	reply_entry(req, &e, err);
+}
+
+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;
+	char *path;
+	int err;
+
+	err = get_path_name(f, parent, name, &path);
+	if (!err) {
+		struct fuse_intr_data d;
+
+		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(f, parent, path);
+	}
+	reply_entry(req, &e, err);
+}
+
+static void fuse_lib_unlink(fuse_req_t req, fuse_ino_t parent,
+			    const char *name)
+{
+	struct fuse *f = req_fuse_prepare(req);
+	struct node *wnode;
+	char *path;
+	int err;
+
+	err = get_path_wrlock(f, parent, name, &path, &wnode);
+	if (!err) {
+		struct fuse_intr_data d;
+
+		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_wrlock(f, parent, wnode, path);
+	}
+	reply_err(req, err);
+}
+
+static void fuse_lib_rmdir(fuse_req_t req, fuse_ino_t parent, const char *name)
+{
+	struct fuse *f = req_fuse_prepare(req);
+	struct node *wnode;
+	char *path;
+	int err;
+
+	err = get_path_wrlock(f, parent, name, &path, &wnode);
+	if (!err) {
+		struct fuse_intr_data d;
+
+		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_wrlock(f, parent, wnode, path);
+	}
+	reply_err(req, err);
+}
+
+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;
+	char *path;
+	int err;
+
+	err = get_path_name(f, parent, name, &path);
+	if (!err) {
+		struct fuse_intr_data d;
+
+		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(f, parent, path);
+	}
+	reply_entry(req, &e, err);
+}
+
+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;
+	char *newpath;
+	struct node *wnode1;
+	struct node *wnode2;
+	int err;
+
+	err = get_path2(f, olddir, oldname, newdir, newname,
+			&oldpath, &newpath, &wnode1, &wnode2);
+	if (!err) {
+		struct fuse_intr_data d;
+		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_path2(f, olddir, newdir, wnode1, wnode2, oldpath, newpath);
+	}
+	reply_err(req, err);
+}
+
+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;
+	char *oldpath;
+	char *newpath;
+	int err;
+
+	err = get_path2(f, ino, NULL, newparent, newname,
+			&oldpath, &newpath, NULL, NULL);
+	if (!err) {
+		struct fuse_intr_data d;
+
+		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_path2(f, ino, newparent, NULL, NULL, oldpath, newpath);
+	}
+	reply_entry(req, &e, err);
+}
+
+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 || f->nullpath_ok) ? 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;
+
+	err = get_path_name(f, parent, name, &path);
+	if (!err) {
+		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) {
+		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 */
+			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 {
+		reply_err(req, err);
+	}
+
+	free_path(f, parent, path);
+}
+
+static double diff_timespec(const struct timespec *t1,
+			    const struct timespec *t2)
+{
+	return (t1->tv_sec - t2->tv_sec) +
+		((double) t1->tv_nsec - (double) t2->tv_nsec) / 1000000000.0;
+}
+
+static void open_auto_cache(struct fuse *f, fuse_ino_t ino, const char *path,
+			    struct fuse_file_info *fi)
+{
+	struct node *node;
+
+	pthread_mutex_lock(&f->lock);
+	node = get_node(f, ino);
+	if (node->cache_valid) {
+		struct timespec now;
+
+		curr_time(&now);
+		if (diff_timespec(&now, &node->stat_updated) >
+		    f->conf.ac_attr_timeout) {
+			struct stat stbuf;
+			int err;
+			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
+				node->cache_valid = 0;
+		}
+	}
+	if (node->cache_valid)
+		fi->keep_cache = 1;
+
+	node->cache_valid = 1;
+	pthread_mutex_unlock(&f->lock);
+}
+
+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;
+	int err;
+
+	err = get_path(f, ino, &path);
+	if (!err) {
+		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) {
+		pthread_mutex_lock(&f->lock);
+		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 */
+			fuse_prepare_interrupt(f, req, &d);
+			fuse_do_release(f, ino, path, fi);
+			fuse_finish_interrupt(f, req, &d);
+		}
+	} else
+		reply_err(req, err);
+
+	free_path(f, ino, path);
+}
+
+static void fuse_lib_read(fuse_req_t req, fuse_ino_t ino, size_t size,
+			  off64_t off, struct fuse_file_info *fi)
+{
+	struct fuse *f = req_fuse_prepare(req);
+	char *path;
+	char *buf;
+	int res;
+
+	buf = (char *) malloc(size);
+	if (buf == NULL) {
+		reply_err(req, -ENOMEM);
+		return;
+	}
+
+	res = get_path_nullok(f, ino, &path);
+	if (res == 0) {
+		struct fuse_intr_data 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(f, ino, path);
+	}
+
+	if (res >= 0)
+		fuse_reply_buf(req, buf, res);
+	else
+		reply_err(req, res);
+
+	free(buf);
+}
+
+static void fuse_lib_write(fuse_req_t req, fuse_ino_t ino, const char *buf,
+			   size_t size, off64_t off, struct fuse_file_info *fi)
+{
+	struct fuse *f = req_fuse_prepare(req);
+	char *path;
+	int res;
+
+	res = get_path_nullok(f, ino, &path);
+	if (res == 0) {
+		struct fuse_intr_data d;
+
+		fuse_prepare_interrupt(f, req, &d);
+		res = fuse_fs_write(f->fs, path, buf, size, off, fi);
+                printf("died\n");
+		fuse_finish_interrupt(f, req, &d);
+		free_path(f, ino, path);
+	}
+
+	if (res >= 0)
+		fuse_reply_write(req, res);
+	else
+		reply_err(req, res);
+}
+
+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);
+	char *path;
+	int err;
+
+	err = get_path_nullok(f, ino, &path);
+	if (!err) {
+		struct fuse_intr_data d;
+
+		fuse_prepare_interrupt(f, req, &d);
+		err = fuse_fs_fsync(f->fs, path, datasync, fi);
+		fuse_finish_interrupt(f, req, &d);
+		free_path(f, ino, path);
+	}
+	reply_err(req, err);
+}
+
+static struct fuse_dh *get_dirhandle(const struct fuse_file_info *llfi,
+				     struct fuse_file_info *fi)
+{
+	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_lib_opendir(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_dh *dh;
+	struct fuse_file_info fi;
+	char *path;
+	int err;
+
+	dh = (struct fuse_dh *) malloc(sizeof(struct fuse_dh));
+	if (dh == NULL) {
+		reply_err(req, -ENOMEM);
+		return;
+	}
+	memset(dh, 0, sizeof(struct fuse_dh));
+	dh->fuse = f;
+	dh->contents = NULL;
+	dh->len = 0;
+	dh->filled = 0;
+	dh->nodeid = ino;
+	fuse_mutex_init(&dh->lock);
+
+	llfi->fh = (uintptr_t) dh;
+
+	memset(&fi, 0, sizeof(fi));
+	fi.flags = llfi->flags;
+
+	err = get_path(f, ino, &path);
+	if (!err) {
+		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);
+		}
+	} else {
+		reply_err(req, err);
+		pthread_mutex_destroy(&dh->lock);
+		free(dh);
+	}
+	free_path(f, ino, path);
+}
+
+static int extend_contents(struct fuse_dh *dh, unsigned minsize)
+{
+	if (minsize > dh->size) {
+		char *newptr;
+		unsigned newsize = dh->size;
+		if (!newsize)
+			newsize = 1024;
+		while (newsize < minsize) {
+			if (newsize >= 0x80000000)
+				newsize = 0xffffffff;
+			else
+				newsize *= 2;
+		}
+
+		newptr = (char *) realloc(dh->contents, newsize);
+		if (!newptr) {
+			dh->error = -ENOMEM;
+			return -1;
+		}
+		dh->contents = newptr;
+		dh->size = newsize;
+	}
+	return 0;
+}
+
+static int fill_dir(void *dh_, const char *name, const struct stat *statp,
+		    off64_t off)
+{
+	struct fuse_dh *dh = (struct fuse_dh *) dh_;
+	struct stat stbuf;
+	size_t newlen;
+
+	if (statp)
+		stbuf = *statp;
+	else {
+		memset(&stbuf, 0, sizeof(stbuf));
+		stbuf.st_ino = FUSE_UNKNOWN_INO;
+	}
+
+	if (!dh->fuse->conf.use_ino) {
+		stbuf.st_ino = FUSE_UNKNOWN_INO;
+		if (dh->fuse->conf.readdir_ino) {
+			struct node *node;
+			pthread_mutex_lock(&dh->fuse->lock);
+			node = lookup_node(dh->fuse, dh->nodeid, name);
+			if (node)
+				stbuf.st_ino  = (ino_t) node->nodeid;
+			pthread_mutex_unlock(&dh->fuse->lock);
+		}
+	}
+
+	if (off) {
+		if (extend_contents(dh, dh->needlen) == -1)
+			return 1;
+
+		dh->filled = 0;
+		newlen = dh->len +
+			fuse_add_direntry(dh->req, dh->contents + dh->len,
+					  dh->needlen - dh->len, name,
+					  &stbuf, off);
+		if (newlen > dh->needlen)
+			return 1;
+	} else {
+		newlen = dh->len +
+			fuse_add_direntry(dh->req, NULL, 0, name, NULL, 0);
+		if (extend_contents(dh, newlen) == -1)
+			return 1;
+
+		fuse_add_direntry(dh->req, dh->contents + dh->len,
+				  dh->size - dh->len, name, &stbuf, newlen);
+	}
+	dh->len = newlen;
+	return 0;
+}
+
+static int readdir_fill(struct fuse *f, fuse_req_t req, fuse_ino_t ino,
+			size_t size, off64_t off, struct fuse_dh *dh,
+			struct fuse_file_info *fi)
+{
+	char *path;
+	int err;
+
+	err = get_path(f, ino, &path);
+	if (!err) {
+		struct fuse_intr_data d;
+
+		dh->len = 0;
+		dh->error = 0;
+		dh->needlen = size;
+		dh->filled = 1;
+		dh->req = req;
+		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;
+		if (err)
+			dh->filled = 0;
+		free_path(f, ino, path);
+	}
+	return err;
+}
+
+static void fuse_lib_readdir(fuse_req_t req, fuse_ino_t ino, size_t size,
+			     off64_t off, struct fuse_file_info *llfi)
+{
+	struct fuse *f = req_fuse_prepare(req);
+	struct fuse_file_info fi;
+	struct fuse_dh *dh = get_dirhandle(llfi, &fi);
+
+	pthread_mutex_lock(&dh->lock);
+	/* According to SUS, directory contents need to be refreshed on
+	   rewinddir() */
+	if (!off)
+		dh->filled = 0;
+
+	if (!dh->filled) {
+		int err = readdir_fill(f, req, ino, size, off, dh, &fi);
+		if (err) {
+			reply_err(req, err);
+			goto out;
+		}
+	}
+	if (dh->filled) {
+		if (off < dh->len) {
+			if (off + size > dh->len)
+				size = dh->len - off;
+		} else
+			size = 0;
+	} else {
+		size = dh->len;
+		off = 0;
+	}
+	fuse_reply_buf(req, dh->contents + off, size);
+out:
+	pthread_mutex_unlock(&dh->lock);
+}
+
+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_dh *dh = get_dirhandle(llfi, &fi);
+	char *path;
+
+	get_path(f, ino, &path);
+	fuse_prepare_interrupt(f, req, &d);
+	fuse_fs_releasedir(f->fs, (path || f->nullpath_ok) ? path : "-", &fi);
+	fuse_finish_interrupt(f, req, &d);
+	free_path(f, ino, path);
+
+	pthread_mutex_lock(&dh->lock);
+	pthread_mutex_unlock(&dh->lock);
+	pthread_mutex_destroy(&dh->lock);
+	free(dh->contents);
+	free(dh);
+	reply_err(req, 0);
+}
+
+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);
+	struct fuse_file_info fi;
+	char *path;
+	int err;
+
+	get_dirhandle(llfi, &fi);
+
+	err = get_path(f, ino, &path);
+	if (!err) {
+		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(f, ino, path);
+	}
+	reply_err(req, err);
+}
+
+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 = NULL;
+	int err = 0;
+
+	memset(&buf, 0, sizeof(buf));
+	if (ino)
+		err = get_path(f, ino, &path);
+
+	if (!err) {
+		struct fuse_intr_data d;
+		fuse_prepare_interrupt(f, req, &d);
+		err = fuse_fs_statfs(f->fs, path ? path : "/", &buf);
+		fuse_finish_interrupt(f, req, &d);
+		free_path(f, ino, path);
+	}
+
+	if (!err)
+		fuse_reply_statfs(req, &buf);
+	else
+		reply_err(req, err);
+}
+
+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;
+	int err;
+
+	err = get_path(f, ino, &path);
+	if (!err) {
+		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(f, ino, path);
+	}
+	reply_err(req, err);
+}
+
+static int common_getxattr(struct fuse *f, fuse_req_t req, fuse_ino_t ino,
+			   const char *name, char *value, size_t size)
+{
+	int err;
+	char *path;
+
+	err = get_path(f, ino, &path);
+	if (!err) {
+		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(f, ino, path);
+	}
+	return err;
+}
+
+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;
+
+	if (size) {
+		char *value = (char *) malloc(size);
+		if (value == NULL) {
+			reply_err(req, -ENOMEM);
+			return;
+		}
+		res = common_getxattr(f, req, ino, name, value, size);
+		if (res > 0)
+			fuse_reply_buf(req, value, res);
+		else
+			reply_err(req, res);
+		free(value);
+	} else {
+		res = common_getxattr(f, req, ino, name, NULL, 0);
+		if (res >= 0)
+			fuse_reply_xattr(req, res);
+		else
+			reply_err(req, res);
+	}
+}
+
+static int common_listxattr(struct fuse *f, fuse_req_t req, fuse_ino_t ino,
+			    char *list, size_t size)
+{
+	char *path;
+	int err;
+
+	err = get_path(f, ino, &path);
+	if (!err) {
+		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(f, ino, path);
+	}
+	return err;
+}
+
+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;
+
+	if (size) {
+		char *list = (char *) malloc(size);
+		if (list == NULL) {
+			reply_err(req, -ENOMEM);
+			return;
+		}
+		res = common_listxattr(f, req, ino, list, size);
+		if (res > 0)
+			fuse_reply_buf(req, list, res);
+		else
+			reply_err(req, res);
+		free(list);
+	} else {
+		res = common_listxattr(f, req, ino, NULL, 0);
+		if (res >= 0)
+			fuse_reply_xattr(req, res);
+		else
+			reply_err(req, res);
+	}
+}
+
+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;
+	int err;
+
+	err = get_path(f, ino, &path);
+	if (!err) {
+		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(f, ino, path);
+	}
+	reply_err(req, err);
+}
+
+static struct lock *locks_conflict(struct node *node, const struct lock *lock)
+{
+	struct lock *l;
+
+	for (l = node->locks; l; l = l->next)
+		if (l->owner != lock->owner &&
+		    lock->start <= l->end && l->start <= lock->end &&
+		    (l->type == F_WRLCK || lock->type == F_WRLCK))
+			break;
+
+	return l;
+}
+
+static void delete_lock(struct lock **lockp)
+{
+	struct lock *l = *lockp;
+	*lockp = l->next;
+	free(l);
+}
+
+static void insert_lock(struct lock **pos, struct lock *lock)
+{
+	lock->next = *pos;
+	*pos = lock;
+}
+
+static int locks_insert(struct node *node, struct lock *lock)
+{
+	struct lock **lp;
+	struct lock *newl1 = NULL;
+	struct lock *newl2 = NULL;
+
+	if (lock->type != F_UNLCK || lock->start != 0 ||
+	    lock->end != OFFSET_MAX) {
+		newl1 = malloc(sizeof(struct lock));
+		newl2 = malloc(sizeof(struct lock));
+
+		if (!newl1 || !newl2) {
+			free(newl1);
+			free(newl2);
+			return -ENOLCK;
+		}
+	}
+
+	for (lp = &node->locks; *lp;) {
+		struct lock *l = *lp;
+		if (l->owner != lock->owner)
+			goto skip;
+
+		if (lock->type == l->type) {
+			if (l->end < lock->start - 1)
+				goto skip;
+			if (lock->end < l->start - 1)
+				break;
+			if (l->start <= lock->start && lock->end <= l->end)
+				goto out;
+			if (l->start < lock->start)
+				lock->start = l->start;
+			if (lock->end < l->end)
+				lock->end = l->end;
+			goto delete;
+		} else {
+			if (l->end < lock->start)
+				goto skip;
+			if (lock->end < l->start)
+				break;
+			if (lock->start <= l->start && l->end <= lock->end)
+				goto delete;
+			if (l->end <= lock->end) {
+				l->end = lock->start - 1;
+				goto skip;
+			}
+			if (lock->start <= l->start) {
+				l->start = lock->end + 1;
+				break;
+			}
+			*newl2 = *l;
+			newl2->start = lock->end + 1;
+			l->end = lock->start - 1;
+			insert_lock(&l->next, newl2);
+			newl2 = NULL;
+		}
+	skip:
+		lp = &l->next;
+		continue;
+
+	delete:
+		delete_lock(lp);
+	}
+	if (lock->type != F_UNLCK) {
+		*newl1 = *lock;
+		insert_lock(lp, newl1);
+		newl1 = NULL;
+	}
+out:
+	free(newl1);
+	free(newl2);
+	return 0;
+}
+
+static void flock_to_lock(struct flock *flock, struct lock *lock)
+{
+	memset(lock, 0, sizeof(struct lock));
+	lock->type = flock->l_type;
+	lock->start = flock->l_start;
+	lock->end =
+		flock->l_len ? flock->l_start + flock->l_len - 1 : OFFSET_MAX;
+	lock->pid = flock->l_pid;
+}
+
+static void lock_to_flock(struct lock *lock, struct flock *flock)
+{
+	flock->l_type = lock->type;
+	flock->l_start = lock->start;
+	flock->l_len =
+		(lock->end == OFFSET_MAX) ? 0 : lock->end - lock->start + 1;
+	flock->l_pid = lock->pid;
+}
+
+static int fuse_flush_common(struct fuse *f, fuse_req_t req, fuse_ino_t ino,
+			     const char *path, struct fuse_file_info *fi)
+{
+	struct fuse_intr_data d;
+	struct flock lock;
+	struct lock l;
+	int err;
+	int errlock;
+
+	fuse_prepare_interrupt(f, req, &d);
+	memset(&lock, 0, sizeof(lock));
+	lock.l_type = F_UNLCK;
+	lock.l_whence = SEEK_SET;
+	err = fuse_fs_flush(f->fs, path, fi);
+	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);
+		locks_insert(get_node(f, ino), &l);
+		pthread_mutex_unlock(&f->lock);
+
+		/* if op.lock() is defined FLUSH is needed regardless
+		   of op.flush() */
+		if (err == -ENOSYS)
+			err = 0;
+	}
+	return err;
+}
+
+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;
+	int err = 0;
+
+	get_path(f, ino, &path);
+	if (fi->flush) {
+		err = fuse_flush_common(f, req, ino, path, fi);
+		if (err == -ENOSYS)
+			err = 0;
+	}
+
+	fuse_prepare_interrupt(f, req, &d);
+	fuse_do_release(f, ino, path, fi);
+	fuse_finish_interrupt(f, req, &d);
+	free_path(f, ino, path);
+
+	reply_err(req, err);
+}
+
+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);
+	char *path;
+	int err;
+
+	get_path(f, ino, &path);
+	err = fuse_flush_common(f, req, ino, path, fi);
+	free_path(f, ino, path);
+
+	reply_err(req, err);
+}
+
+static int fuse_lock_common(fuse_req_t req, fuse_ino_t ino,
+			    struct fuse_file_info *fi, struct flock *lock,
+			    int cmd)
+{
+	struct fuse *f = req_fuse_prepare(req);
+	char *path;
+	int err;
+
+	err = get_path_nullok(f, ino, &path);
+	if (!err) {
+		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(f, ino, path);
+	}
+	return err;
+}
+
+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;
+	struct lock *conflict;
+	struct fuse *f = req_fuse(req);
+
+	flock_to_lock(lock, &l);
+	l.owner = fi->lock_owner;
+	pthread_mutex_lock(&f->lock);
+	conflict = locks_conflict(get_node(f, ino), &l);
+	if (conflict)
+		lock_to_flock(conflict, lock);
+	pthread_mutex_unlock(&f->lock);
+	if (!conflict)
+		err = fuse_lock_common(req, ino, fi, lock, F_GETLK);
+	else
+		err = 0;
+
+	if (!err)
+		fuse_reply_lock(req, lock);
+	else
+		reply_err(req, err);
+}
+
+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) {
+		struct fuse *f = req_fuse(req);
+		struct lock l;
+		flock_to_lock(lock, &l);
+		l.owner = fi->lock_owner;
+		pthread_mutex_lock(&f->lock);
+		locks_insert(get_node(f, ino), &l);
+		pthread_mutex_unlock(&f->lock);
+	}
+	reply_err(req, err);
+}
+
+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;
+
+	err = get_path(f, ino, &path);
+	if (!err) {
+		fuse_prepare_interrupt(f, req, &d);
+		err = fuse_fs_bmap(f->fs, path, blocksize, &idx);
+		fuse_finish_interrupt(f, req, &d);
+		free_path(f, ino, path);
+	}
+	if (!err)
+		fuse_reply_bmap(req, idx);
+	else
+		reply_err(req, err);
+}
+
+static void fuse_lib_ioctl(fuse_req_t req, fuse_ino_t ino, int cmd, void *arg,
+			   struct fuse_file_info *fi, unsigned int flags,
+			   const void *in_buf, size_t in_bufsz,
+			   size_t out_bufsz)
+{
+	struct fuse *f = req_fuse_prepare(req);
+	struct fuse_intr_data d;
+	char *path, *out_buf = NULL;
+	int err;
+
+	err = -EPERM;
+	if (flags & FUSE_IOCTL_UNRESTRICTED)
+		goto err;
+
+	if (out_bufsz) {
+		err = -ENOMEM;
+		out_buf = malloc(out_bufsz);
+		if (!out_buf)
+			goto err;
+	}
+
+	assert(!in_bufsz || !out_bufsz || in_bufsz == out_bufsz);
+	if (out_buf)
+		memcpy(out_buf, in_buf, in_bufsz);
+
+	err = get_path(f, ino, &path);
+	if (err)
+		goto err;
+
+	fuse_prepare_interrupt(f, req, &d);
+
+	err = fuse_fs_ioctl(f->fs, path, cmd, arg, fi, flags,
+			    out_buf ?: (void *)in_buf);
+
+	fuse_finish_interrupt(f, req, &d);
+	free_path(f, ino, path);
+
+	fuse_reply_ioctl(req, err, out_buf, out_bufsz);
+	goto out;
+err:
+	reply_err(req, err);
+out:
+	free(out_buf);
+}
+
+static void fuse_lib_poll(fuse_req_t req, fuse_ino_t ino,
+			  struct fuse_file_info *fi, struct fuse_pollhandle *ph)
+{
+	struct fuse *f = req_fuse_prepare(req);
+	struct fuse_intr_data d;
+	char *path;
+	int ret;
+	unsigned revents = 0;
+
+	ret = get_path(f, ino, &path);
+	if (!ret) {
+		fuse_prepare_interrupt(f, req, &d);
+		ret = fuse_fs_poll(f->fs, path, fi, ph, &revents);
+		fuse_finish_interrupt(f, req, &d);
+		free_path(f, ino, path);
+	}
+	if (!ret)
+		fuse_reply_poll(req, revents);
+	else
+		reply_err(req, ret);
+}
+
+static struct fuse_lowlevel_ops fuse_path_ops = {
+	.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,
+	.ioctl = fuse_lib_ioctl,
+	.poll = fuse_lib_poll,
+};
+
+int fuse_notify_poll(struct fuse_pollhandle *ph)
+{
+	return fuse_lowlevel_notify_poll(ph);
+}
+
+static void free_cmd(struct fuse_cmd *cmd)
+{
+	free(cmd->buf);
+	free(cmd);
+}
+
+void fuse_process_cmd(struct fuse *f, struct fuse_cmd *cmd)
+{
+	fuse_session_process(f->se, cmd->buf, cmd->buflen, cmd->ch);
+	free_cmd(cmd);
+}
+
+int fuse_exited(struct fuse *f)
+{
+	return fuse_session_exited(f->se);
+}
+
+struct fuse_session *fuse_get_session(struct fuse *f)
+{
+	return f->se;
+}
+
+static struct fuse_cmd *fuse_alloc_cmd(size_t bufsize)
+{
+	struct fuse_cmd *cmd = (struct fuse_cmd *) malloc(sizeof(*cmd));
+	if (cmd == NULL) {
+		fprintf(stderr, "fuse: failed to allocate cmd\n");
+		return NULL;
+	}
+	cmd->buf = (char *) malloc(bufsize);
+	if (cmd->buf == NULL) {
+		fprintf(stderr, "fuse: failed to allocate read buffer\n");
+		free(cmd);
+		return NULL;
+	}
+	return cmd;
+}
+
+struct fuse_cmd *fuse_read_cmd(struct fuse *f)
+{
+	struct fuse_chan *ch = fuse_session_next_chan(f->se, NULL);
+	size_t bufsize = fuse_chan_bufsize(ch);
+	struct fuse_cmd *cmd = fuse_alloc_cmd(bufsize);
+	if (cmd != NULL) {
+		int res = fuse_chan_recv(&ch, cmd->buf, bufsize);
+		if (res <= 0) {
+			free_cmd(cmd);
+			if (res < 0 && res != -EINTR && res != -EAGAIN)
+				fuse_exit(f);
+			return NULL;
+		}
+		cmd->buflen = res;
+		cmd->ch = ch;
+	}
+	return cmd;
+}
+
+int fuse_loop(struct fuse *f)
+{
+	if (f)
+		return fuse_session_loop(f->se);
+	else
+		return -1;
+}
+
+int fuse_invalidate(struct fuse *f, const char *path)
+{
+	(void) f;
+	(void) path;
+	return -EINVAL;
+}
+
+void fuse_exit(struct fuse *f)
+{
+	fuse_session_exit(f->se);
+}
+
+struct fuse_context *fuse_get_context(void)
+{
+	return &fuse_get_context_internal()->ctx;
+}
+
+/*
+ * The size of fuse_context got extended, so need to be careful about
+ * incompatibility (i.e. a new binary cannot work with an old
+ * library).
+ */
+struct fuse_context *fuse_get_context_compat22(void);
+struct fuse_context *fuse_get_context_compat22(void)
+{
+	return &fuse_get_context_internal()->ctx;
+}
+FUSE_SYMVER(".symver fuse_get_context_compat22,fuse_get_context@FUSE_2.2");
+
+int fuse_getgroups(int size, gid_t list[])
+{
+	fuse_req_t req = fuse_get_context_internal()->req;
+	return fuse_req_getgroups(req, size, list);
+}
+
+int fuse_interrupted(void)
+{
+	return fuse_req_interrupted(fuse_get_context_internal()->req);
+}
+
+void fuse_set_getcontext_func(struct fuse_context *(*func)(void))
+{
+	(void) func;
+	/* no-op */
+}
+
+enum {
+	KEY_HELP,
+};
+
+#define FUSE_LIB_OPT(t, p, v) { t, offsetof(struct fuse_config, p), v }
+
+static const struct fuse_opt fuse_lib_opts[] = {
+	FUSE_OPT_KEY("-h",		      KEY_HELP),
+	FUSE_OPT_KEY("--help",		      KEY_HELP),
+	FUSE_OPT_KEY("debug",		      FUSE_OPT_KEY_KEEP),
+	FUSE_OPT_KEY("-d",		      FUSE_OPT_KEY_KEEP),
+	FUSE_LIB_OPT("debug",		      debug, 1),
+	FUSE_LIB_OPT("-d",		      debug, 1),
+	FUSE_LIB_OPT("hard_remove",	      hard_remove, 1),
+	FUSE_LIB_OPT("use_ino",		      use_ino, 1),
+	FUSE_LIB_OPT("readdir_ino",	      readdir_ino, 1),
+	FUSE_LIB_OPT("direct_io",	      direct_io, 1),
+	FUSE_LIB_OPT("kernel_cache",	      kernel_cache, 1),
+	FUSE_LIB_OPT("auto_cache",	      auto_cache, 1),
+	FUSE_LIB_OPT("noauto_cache",	      auto_cache, 0),
+	FUSE_LIB_OPT("umask=",		      set_mode, 1),
+	FUSE_LIB_OPT("umask=%o",	      umask, 0),
+	FUSE_LIB_OPT("uid=",		      set_uid, 1),
+	FUSE_LIB_OPT("uid=%d",		      uid, 0),
+	FUSE_LIB_OPT("gid=",		      set_gid, 1),
+	FUSE_LIB_OPT("gid=%d",		      gid, 0),
+	FUSE_LIB_OPT("entry_timeout=%lf",     entry_timeout, 0),
+	FUSE_LIB_OPT("attr_timeout=%lf",      attr_timeout, 0),
+	FUSE_LIB_OPT("ac_attr_timeout=%lf",   ac_attr_timeout, 0),
+	FUSE_LIB_OPT("ac_attr_timeout=",      ac_attr_timeout_set, 1),
+	FUSE_LIB_OPT("negative_timeout=%lf",  negative_timeout, 0),
+	FUSE_LIB_OPT("noforget",              noforget, 1),
+	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
+};
+
+static void fuse_lib_help(void)
+{
+	fprintf(stderr,
+"    -o hard_remove         immediate removal (don't hide files)\n"
+"    -o use_ino             let filesystem set inode numbers\n"
+"    -o readdir_ino         try to fill in d_ino in readdir\n"
+"    -o direct_io           use direct I/O\n"
+"    -o kernel_cache        cache files in kernel\n"
+"    -o [no]auto_cache      enable caching based on modification times (off)\n"
+"    -o umask=M             set file permissions (octal)\n"
+"    -o uid=N               set file owner\n"
+"    -o gid=N               set file group\n"
+"    -o entry_timeout=T     cache timeout for names (1.0s)\n"
+"    -o negative_timeout=T  cache timeout for deleted names (0.0s)\n"
+"    -o attr_timeout=T      cache timeout for attributes (1.0s)\n"
+"    -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) arg; (void) outargs;
+
+	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) ||
+		fuse_opt_match(fuse_lib_opts, opt);
+}
+
+static int fuse_init_intr_signal(int signum, int *installed)
+{
+	struct sigaction old_sa;
+
+	if (sigaction(signum, NULL, &old_sa) == -1) {
+		perror("fuse: cannot get old signal handler");
+		return -1;
+	}
+
+	if (old_sa.sa_handler == SIG_DFL) {
+		struct sigaction sa;
+
+		memset(&sa, 0, sizeof(struct sigaction));
+		sa.sa_handler = fuse_intr_sighandler;
+		sigemptyset(&sa.sa_mask);
+
+		if (sigaction(signum, &sa, NULL) == -1) {
+			perror("fuse: cannot set interrupt signal handler");
+			return -1;
+		}
+		*installed = 1;
+	}
+	return 0;
+}
+
+static void fuse_restore_intr_signal(int signum)
+{
+	struct sigaction sa;
+
+	memset(&sa, 0, sizeof(struct sigaction));
+	sa.sa_handler = SIG_DFL;
+	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;
+	f->nullpath_ok = newfs->op.flag_nullpath_ok && f->nullpath_ok;
+	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;
+	if (op)
+		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 (fuse_create_context_key() == -1)
+		goto out;
+
+	f = (struct fuse *) calloc(1, sizeof(struct fuse));
+	if (f == NULL) {
+		fprintf(stderr, "fuse: failed to allocate fuse object\n");
+		goto out_delete_context_key;
+	}
+
+	fs = fuse_fs_new(op, op_size, user_data);
+	if (!fs)
+		goto out_free;
+
+	fs->compat = compat;
+	f->fs = fs;
+	f->nullpath_ok = fs->op.flag_nullpath_ok;
+
+	/* 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_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;
+
+#ifdef __FreeBSD__
+	/*
+	 * In FreeBSD, we always use these settings as inode numbers
+	 * are needed to make getcwd(3) work.
+	 */
+	f->conf.readdir_ino = 1;
+#endif
+
+	if (compat && compat <= 25) {
+		if (fuse_sync_compat_args(args) == -1)
+			goto out_free_fs;
+	}
+
+	f->se = fuse_lowlevel_new_common(args, &llop, sizeof(llop), f);
+	if (f->se == NULL) {
+		if (f->conf.help)
+			fuse_lib_help_modules();
+		goto out_free_fs;
+	}
+
+	fuse_session_add_chan(f->se, ch);
+
+	if (f->conf.debug)
+		fprintf(stderr, "nullpath_ok: %i\n", f->nullpath_ok);
+
+	/* Trace topmost layer by default */
+	f->fs->debug = f->conf.debug;
+	f->ctr = 0;
+	f->generation = 0;
+	/* FIXME: Dynamic hash table */
+	f->name_table_size = 14057;
+	f->name_table = (struct node **)
+		calloc(1, sizeof(struct node *) * f->name_table_size);
+	if (f->name_table == NULL) {
+		fprintf(stderr, "fuse: memory allocation failed\n");
+		goto out_free_session;
+	}
+
+	f->id_table_size = 14057;
+	f->id_table = (struct node **)
+		calloc(1, sizeof(struct node *) * f->id_table_size);
+	if (f->id_table == NULL) {
+		fprintf(stderr, "fuse: memory allocation failed\n");
+		goto out_free_name_table;
+	}
+
+	fuse_mutex_init(&f->lock);
+
+	root = (struct node *) calloc(1, sizeof(struct node));
+	if (root == NULL) {
+		fprintf(stderr, "fuse: memory allocation failed\n");
+		goto out_free_id_table;
+	}
+
+	root->name = strdup("/");
+	if (root->name == NULL) {
+		fprintf(stderr, "fuse: memory allocation failed\n");
+		goto out_free_root;
+	}
+
+	if (f->conf.intr &&
+	    fuse_init_intr_signal(f->conf.intr_signal,
+				  &f->intr_installed) == -1)
+		goto out_free_root_name;
+
+	root->parent = NULL;
+	root->nodeid = FUSE_ROOT_ID;
+	root->generation = 0;
+	root->refctr = 1;
+	root->nlookup = 1;
+	hash_id(f, root);
+
+	return f;
+
+out_free_root_name:
+	free(root->name);
+out_free_root:
+	free(root);
+out_free_id_table:
+	free(f->id_table);
+out_free_name_table:
+	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);
+	free(f->conf.modules);
+out_free:
+	free(f);
+out_delete_context_key:
+	fuse_delete_context_key();
+out:
+	return NULL;
+}
+
+struct fuse *fuse_new(struct fuse_chan *ch, struct fuse_args *args,
+		      const struct fuse_operations *op, size_t op_size,
+		      void *user_data)
+{
+	return fuse_new_common(ch, args, op, op_size, user_data, 0);
+}
+
+void fuse_destroy(struct fuse *f)
+{
+	size_t i;
+
+	if (f->conf.intr && f->intr_installed)
+		fuse_restore_intr_signal(f->conf.intr_signal);
+
+	if (f->fs) {
+		struct fuse_context_i *c = fuse_get_context_internal();
+
+		memset(c, 0, sizeof(*c));
+		c->ctx.fuse = f;
+
+		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;
+					if (try_get_path(f, node->nodeid, NULL, &path, NULL, 0) == 0) {
+						fuse_fs_unlink(f->fs, path);
+						free(path);
+					}
+				}
+			}
+		}
+	}
+	for (i = 0; i < f->id_table_size; i++) {
+		struct node *node;
+		struct node *next;
+
+		for (node = f->id_table[i]; node != NULL; node = next) {
+			next = node->id_next;
+			free_node(node);
+		}
+	}
+	free(f->id_table);
+	free(f->name_table);
+	pthread_mutex_destroy(&f->lock);
+	fuse_session_destroy(f->se);
+	free(f->conf.modules);
+	free(f);
+	fuse_delete_context_key();
+}
+
+static struct fuse *fuse_new_common_compat25(int fd, struct fuse_args *args,
+					     const struct fuse_operations *op,
+					     size_t op_size, int compat)
+{
+	struct fuse *f = NULL;
+	struct fuse_chan *ch = fuse_kern_chan_new(fd);
+
+	if (ch)
+		f = fuse_new_common(ch, args, op, op_size, NULL, compat);
+
+	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->ctr = 0;
+	mod->so = fuse_current_so;
+	if (mod->so)
+		mod->so->ctr++;
+	mod->next = fuse_modules;
+	fuse_modules = mod;
+}
+
+#ifndef __FreeBSD__
+
+static struct fuse *fuse_new_common_compat(int fd, const char *opts,
+					   const struct fuse_operations *op,
+					   size_t op_size, int compat)
+{
+	struct fuse *f;
+	struct fuse_args args = FUSE_ARGS_INIT(0, NULL);
+
+	if (fuse_opt_add_arg(&args, "") == -1)
+		return NULL;
+	if (opts &&
+	    (fuse_opt_add_arg(&args, "-o") == -1 ||
+	     fuse_opt_add_arg(&args, opts) == -1)) {
+		fuse_opt_free_args(&args);
+		return NULL;
+	}
+	f = fuse_new_common_compat25(fd, &args, op, op_size, compat);
+	fuse_opt_free_args(&args);
+
+	return f;
+}
+
+struct fuse *fuse_new_compat22(int fd, const char *opts,
+			       const struct fuse_operations_compat22 *op,
+			       size_t op_size)
+{
+	return fuse_new_common_compat(fd, opts, (struct fuse_operations *) op,
+				      op_size, 22);
+}
+
+struct fuse *fuse_new_compat2(int fd, const char *opts,
+			      const struct fuse_operations_compat2 *op)
+{
+	return fuse_new_common_compat(fd, opts, (struct fuse_operations *) op,
+				      sizeof(struct fuse_operations_compat2),
+				      21);
+}
+
+struct fuse *fuse_new_compat1(int fd, int flags,
+			      const struct fuse_operations_compat1 *op)
+{
+	const char *opts = NULL;
+	if (flags & FUSE_DEBUG_COMPAT1)
+		opts = "debug";
+	return fuse_new_common_compat(fd, opts, (struct fuse_operations *) op,
+				      sizeof(struct fuse_operations_compat1),
+				      11);
+}
+
+FUSE_SYMVER(".symver fuse_exited,__fuse_exited@");
+FUSE_SYMVER(".symver fuse_process_cmd,__fuse_process_cmd@");
+FUSE_SYMVER(".symver fuse_read_cmd,__fuse_read_cmd@");
+FUSE_SYMVER(".symver fuse_set_getcontext_func,__fuse_set_getcontext_func@");
+FUSE_SYMVER(".symver fuse_new_compat2,fuse_new@");
+FUSE_SYMVER(".symver fuse_new_compat22,fuse_new@FUSE_2.2");
+
+#endif /* __FreeBSD__ */
+
+struct fuse *fuse_new_compat25(int fd, struct fuse_args *args,
+			       const struct fuse_operations_compat25 *op,
+			       size_t op_size)
+{
+	return fuse_new_common_compat25(fd, args, (struct fuse_operations *) op,
+					op_size, 25);
+}
+
+FUSE_SYMVER(".symver fuse_new_compat25,fuse_new@FUSE_2.5");