Add libtar to TWRP instead of using busybox tar
Add proper mkdosfs tool
Add fuse to TWRP
Add experimental exfat-fuse to TWRP
Convert all system() functions to use new Exec_Cmd function
diff --git a/fuse/fuse.c b/fuse/fuse.c
new file mode 100644
index 0000000..448c9cd
--- /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");