main.c (01.09.09)
FUSE-based exFAT implementation. Requires FUSE 2.6 or later.
- Copyright (C) 2010-2012 Andrew Nayenko
+ Copyright (C) 2010-2013 Andrew Nayenko
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#error FUSE 2.6 or later is required
#endif
-const char* default_options = "ro_fallback,allow_other,blkdev";
+const char* default_options = "ro_fallback,allow_other,blkdev,big_writes,"
+ "defer_permissions";
struct exfat ef;
struct exfat_node* node;
int rc;
- exfat_debug("[fuse_exfat_getattr] %s", path);
+ exfat_debug("[%s] %s", __func__, path);
rc = exfat_lookup(&ef, &node, path);
if (rc != 0)
struct exfat_node* node;
int rc;
- exfat_debug("[fuse_exfat_truncate] %s, %"PRIu64, path, (uint64_t) size);
+ exfat_debug("[%s] %s, %"PRId64, __func__, path, size);
rc = exfat_lookup(&ef, &node, path);
if (rc != 0)
return rc;
- rc = exfat_truncate(&ef, node, size);
+ rc = exfat_truncate(&ef, node, size, true);
exfat_put_node(&ef, node);
return rc;
}
int rc;
char name[EXFAT_NAME_MAX + 1];
- exfat_debug("[fuse_exfat_readdir] %s", path);
+ exfat_debug("[%s] %s", __func__, path);
rc = exfat_lookup(&ef, &parent, path);
if (rc != 0)
while ((node = exfat_readdir(&ef, &it)))
{
exfat_get_name(node, name, EXFAT_NAME_MAX);
- exfat_debug("[fuse_exfat_readdir] %s: %s, %"PRIu64" bytes, cluster %u",
+ exfat_debug("[%s] %s: %s, %"PRId64" bytes, cluster 0x%x", __func__,
name, IS_CONTIGUOUS(*node) ? "contiguous" : "fragmented",
- (uint64_t) node->size, node->start_cluster);
+ node->size, node->start_cluster);
filler(buffer, name, NULL, 0);
exfat_put_node(&ef, node);
}
struct exfat_node* node;
int rc;
- exfat_debug("[fuse_exfat_open] %s", path);
+ exfat_debug("[%s] %s", __func__, path);
rc = exfat_lookup(&ef, &node, path);
if (rc != 0)
static int fuse_exfat_release(const char* path, struct fuse_file_info* fi)
{
+ exfat_debug("[%s] %s", __func__, path);
exfat_put_node(&ef, get_node(fi));
return 0;
}
static int fuse_exfat_read(const char* path, char* buffer, size_t size,
off_t offset, struct fuse_file_info* fi)
{
- exfat_debug("[fuse_exfat_read] %s (%zu bytes)", path, size);
- return exfat_generic_pread(&ef, get_node(fi), buffer, size, offset);
+ ssize_t ret;
+
+ exfat_debug("[%s] %s (%zu bytes)", __func__, path, size);
+ ret = exfat_generic_pread(&ef, get_node(fi), buffer, size, offset);
+ if (ret < 0)
+ return -EIO;
+ return ret;
}
static int fuse_exfat_write(const char* path, const char* buffer, size_t size,
off_t offset, struct fuse_file_info* fi)
{
- exfat_debug("[fuse_exfat_write] %s (%zu bytes)", path, size);
- return exfat_generic_pwrite(&ef, get_node(fi), buffer, size, offset);
+ ssize_t ret;
+
+ exfat_debug("[%s] %s (%zu bytes)", __func__, path, size);
+ ret = exfat_generic_pwrite(&ef, get_node(fi), buffer, size, offset);
+ if (ret < 0)
+ return -EIO;
+ return ret;
}
static int fuse_exfat_unlink(const char* path)
struct exfat_node* node;
int rc;
- exfat_debug("[fuse_exfat_unlink] %s", path);
+ exfat_debug("[%s] %s", __func__, path);
rc = exfat_lookup(&ef, &node, path);
if (rc != 0)
struct exfat_node* node;
int rc;
- exfat_debug("[fuse_exfat_rmdir] %s", path);
+ exfat_debug("[%s] %s", __func__, path);
rc = exfat_lookup(&ef, &node, path);
if (rc != 0)
static int fuse_exfat_mknod(const char* path, mode_t mode, dev_t dev)
{
- exfat_debug("[fuse_exfat_mknod] %s", path);
+ exfat_debug("[%s] %s 0%ho", __func__, path, mode);
return exfat_mknod(&ef, path);
}
static int fuse_exfat_mkdir(const char* path, mode_t mode)
{
- exfat_debug("[fuse_exfat_mkdir] %s", path);
+ exfat_debug("[%s] %s 0%ho", __func__, path, mode);
return exfat_mkdir(&ef, path);
}
static int fuse_exfat_rename(const char* old_path, const char* new_path)
{
- exfat_debug("[fuse_exfat_rename] %s => %s", old_path, new_path);
+ exfat_debug("[%s] %s => %s", __func__, old_path, new_path);
return exfat_rename(&ef, old_path, new_path);
}
struct exfat_node* node;
int rc;
- exfat_debug("[fuse_exfat_utimens] %s", path);
+ exfat_debug("[%s] %s", __func__, path);
rc = exfat_lookup(&ef, &node, path);
if (rc != 0)
return 0;
}
-#ifdef __APPLE__
static int fuse_exfat_chmod(const char* path, mode_t mode)
{
- exfat_debug("[fuse_exfat_chmod] %s 0%ho", path, mode);
- /* make OS X utilities happy */
+ const mode_t VALID_MODE_MASK = S_IFREG | S_IFDIR |
+ S_IRWXU | S_IRWXG | S_IRWXO;
+
+ exfat_debug("[%s] %s 0%ho", __func__, path, mode);
+ if (mode & ~VALID_MODE_MASK)
+ return -EPERM;
+ return 0;
+}
+
+static int fuse_exfat_chown(const char* path, uid_t uid, gid_t gid)
+{
+ exfat_debug("[%s] %s %u:%u", __func__, path, uid, gid);
+ if (uid != ef.uid || gid != ef.gid)
+ return -EPERM;
return 0;
}
-#endif
static int fuse_exfat_statfs(const char* path, struct statvfs* sfs)
{
+ exfat_debug("[%s]", __func__);
+
sfs->f_bsize = CLUSTER_SIZE(*ef.sb);
sfs->f_frsize = CLUSTER_SIZE(*ef.sb);
sfs->f_blocks = le64_to_cpu(ef.sb->sector_count) >> ef.sb->spc_bits;
return 0;
}
+static void* fuse_exfat_init(struct fuse_conn_info* fci)
+{
+ exfat_debug("[%s]", __func__);
+#ifdef FUSE_CAP_BIG_WRITES
+ fci->want |= FUSE_CAP_BIG_WRITES;
+#endif
+ return NULL;
+}
+
static void fuse_exfat_destroy(void* unused)
{
+ exfat_debug("[%s]", __func__);
exfat_unmount(&ef);
}
static void usage(const char* prog)
{
- fprintf(stderr, "Usage: %s [-d] [-o options] [-v] <device> <dir>\n", prog);
+ fprintf(stderr, "Usage: %s [-d] [-o options] [-V] <device> <dir>\n", prog);
exit(1);
}
.mkdir = fuse_exfat_mkdir,
.rename = fuse_exfat_rename,
.utimens = fuse_exfat_utimens,
-#ifdef __APPLE__
- .chmod = fuse_exfat_chmod,
-#endif
+ .chmod = fuse_exfat_chmod,
+ .chown = fuse_exfat_chown,
.statfs = fuse_exfat_statfs,
+ .init = fuse_exfat_init,
.destroy = fuse_exfat_destroy,
};
return options;
}
-static char* add_fsname_option(char* options, const char* spec)
-{
- char spec_abs[PATH_MAX];
-
- if (realpath(spec, spec_abs) == NULL)
- {
- free(options);
- exfat_error("failed to get absolute path for `%s'", spec);
- return NULL;
- }
- return add_option(options, "fsname", spec_abs);
-}
-
static char* add_user_option(char* options)
{
struct passwd* pw;
static char* add_fuse_options(char* options, const char* spec)
{
- options = add_fsname_option(options, spec);
+ options = add_option(options, "fsname", spec);
if (options == NULL)
return NULL;
options = add_user_option(options);
int debug = 0;
struct fuse_chan* fc = NULL;
struct fuse* fh = NULL;
- char** pp;
+ int opt;
printf("FUSE exfat %u.%u.%u\n",
EXFAT_VERSION_MAJOR, EXFAT_VERSION_MINOR, EXFAT_VERSION_PATCH);
return 1;
}
- for (pp = argv + 1; *pp; pp++)
+ while ((opt = getopt(argc, argv, "dno:Vv")) != -1)
{
- if (strcmp(*pp, "-o") == 0)
+ switch (opt)
{
- pp++;
- if (*pp == NULL)
- usage(argv[0]);
- mount_options = add_option(mount_options, *pp, NULL);
+ case 'd':
+ debug = 1;
+ break;
+ case 'n':
+ break;
+ case 'o':
+ mount_options = add_option(mount_options, optarg, NULL);
if (mount_options == NULL)
return 1;
- }
- else if (strcmp(*pp, "-d") == 0)
- debug = 1;
- else if (strcmp(*pp, "-v") == 0)
- {
+ break;
+ case 'V':
free(mount_options);
- puts("Copyright (C) 2010-2012 Andrew Nayenko");
+ puts("Copyright (C) 2010-2013 Andrew Nayenko");
return 0;
- }
- else if (spec == NULL)
- spec = *pp;
- else if (mount_point == NULL)
- mount_point = *pp;
- else
- {
+ case 'v':
+ break;
+ default:
free(mount_options);
usage(argv[0]);
+ break;
}
}
- if (spec == NULL || mount_point == NULL)
+ if (argc - optind != 2)
{
free(mount_options);
usage(argv[0]);
}
+ spec = argv[optind];
+ mount_point = argv[optind + 1];
if (exfat_mount(&ef, spec, mount_options) != 0)
{
return 1;
}
- if (ef.ro_fallback)
+ if (ef.ro == -1) /* read-only fallback was used */
{
mount_options = add_option(mount_options, "ro", NULL);
if (mount_options == NULL)
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