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-rw-r--r--lib/fuse.c180
1 files changed, 111 insertions, 69 deletions
diff --git a/lib/fuse.c b/lib/fuse.c
index f846f74..62695f0 100644
--- a/lib/fuse.c
+++ b/lib/fuse.c
@@ -43,15 +43,14 @@ static int free_node(struct node *node)
static inline struct node *get_node(fino_t ino)
{
- return (struct node *) ino;
+ return (struct node *) ((ino << 3) + 0x8000000);
}
static inline fino_t get_ino(struct node *node)
{
- return (fino_t) node;
+ return (((fino_t) node) - 0x8000000) >> 3;
}
-
static fino_t find_node(struct fuse *f, fino_t parent, char *name, int create)
{
struct node *node;
@@ -95,6 +94,14 @@ static char *get_path(fino_t ino)
return ss;
}
+static char *get_path_name(fino_t ino, const char *name)
+{
+ char *path = get_path(ino);
+ char *path2 = g_strconcat(path, "/", name, NULL);
+ g_free(path);
+ return path2;
+}
+
static void remove_node(struct fuse *f, fino_t ino)
{
struct node *node = get_node(ino);
@@ -102,7 +109,6 @@ static void remove_node(struct fuse *f, fino_t ino)
free_node(node);
}
-
static void convert_stat(struct stat *stbuf, struct fuse_attr *attr)
{
attr->mode = stbuf->st_mode;
@@ -124,11 +130,10 @@ static int get_attributes(struct fuse *f, fino_t ino, struct fuse_attr *attr)
struct stat buf;
int res;
- if(f->op.getattr == NULL)
- return -ENOSYS;
-
path = get_path(ino);
- res = f->op.getattr(path, &buf);
+ res = -ENOSYS;
+ if(f->op.getattr)
+ res = f->op.getattr(path, &buf);
g_free(path);
if(res == 0)
convert_stat(&buf, attr);
@@ -136,21 +141,6 @@ static int get_attributes(struct fuse *f, fino_t ino, struct fuse_attr *attr)
return res;
}
-static int read_link(struct fuse *f, fino_t ino, char *buf, size_t size)
-{
- char *path;
- int res;
-
- if(f->op.readlink == NULL)
- return -ENOSYS;
-
- path = get_path(ino);
- res = f->op.readlink(path, buf, size);
- g_free(path);
-
- return res;
-}
-
static int fill_dir(struct fuse_dh *dh, char *name, int type)
{
struct fuse_dirent dirent;
@@ -170,27 +160,6 @@ static int fill_dir(struct fuse_dh *dh, char *name, int type)
return 0;
}
-static int get_dir(struct fuse *f, fino_t ino, FILE *fp)
-{
- char *path;
- int res;
- struct fuse_dh dh;
-
- if(f->op.getdir == NULL)
- return -ENOSYS;
-
- dh.fuse = f;
- dh.fp = fp;
- dh.dir = ino;
-
- path = get_path(ino);
- res = f->op.getdir(path, &dh, (dirfiller_t) fill_dir);
- g_free(path);
-
- return res;
-}
-
-
static void send_reply(struct fuse *f, struct fuse_in_header *in, int result,
void *arg, size_t argsize)
{
@@ -237,7 +206,6 @@ static void do_lookup(struct fuse *f, struct fuse_in_header *in, char *name)
send_reply(f, in, res, &arg, sizeof(arg));
}
-
static void do_forget(struct fuse *f, unsigned long *inos, size_t num)
{
size_t i;
@@ -259,50 +227,112 @@ static void do_readlink(struct fuse *f, struct fuse_in_header *in)
{
int res;
char link[PATH_MAX + 1];
+ char *path;
+
+ path = get_path(in->ino);
+ res = -ENOSYS;
+ if(f->op.readlink)
+ res = f->op.readlink(path, link, sizeof(link));
+ g_free(path);
- res = read_link(f, in->ino, link, PATH_MAX + 1);
send_reply(f, in, res, link, res == 0 ? strlen(link) : 0);
}
+static void do_getdir(struct fuse *f, struct fuse_in_header *in)
+{
+ int res;
+ struct fuse_getdir_out arg;
+ struct fuse_dh dh;
+ char *path;
+
+ dh.fuse = f;
+ dh.fp = tmpfile();
+ dh.dir = in->ino;
+
+ path = get_path(in->ino);
+ res = -ENOSYS;
+ if(f->op.getdir)
+ res = f->op.getdir(path, &dh, (dirfiller_t) fill_dir);
+ g_free(path);
+
+ fflush(dh.fp);
+ arg.fd = fileno(dh.fp);
+ send_reply(f, in, res, &arg, sizeof(arg));
+ fclose(dh.fp);
+}
+
static void do_mknod(struct fuse *f, struct fuse_in_header *in,
struct fuse_mknod_in *inarg)
{
int res;
+ char *path;
struct fuse_mknod_out outarg;
-
- res = -ENOSYS;
- if(f->op.mknod != NULL && f->op.getattr != NULL) {
- char *path;
- struct stat buf;
+ struct stat buf;
- outarg.ino = find_node(f, in->ino, inarg->name, 1);
- path = get_path(outarg.ino);
+ outarg.ino = find_node(f, in->ino, inarg->name, 1);
+ path = get_path(outarg.ino);
+ res = -ENOSYS;
+ if(f->op.mknod && f->op.getattr) {
res = f->op.mknod(path, inarg->mode, inarg->rdev);
if(res == 0)
res = f->op.getattr(path, &buf);
- g_free(path);
-
- if(res == 0)
- convert_stat(&buf, &outarg.attr);
- else
- remove_node(f, outarg.ino);
}
+ g_free(path);
+
+ if(res == 0)
+ convert_stat(&buf, &outarg.attr);
+
send_reply(f, in, res, &outarg, sizeof(outarg));
}
-static void do_getdir(struct fuse *f, struct fuse_in_header *in)
+static void do_mkdir(struct fuse *f, struct fuse_in_header *in,
+ struct fuse_mkdir_in *inarg)
{
int res;
- struct fuse_getdir_out arg;
- FILE *fp = tmpfile();
+ char *path;
- res = get_dir(f, in->ino, fp);
- fflush(fp);
- arg.fd = fileno(fp);
- send_reply(f, in, res, &arg, sizeof(arg));
- fclose(fp);
+ path = get_path_name(in->ino, inarg->name);
+ res = -ENOSYS;
+ if(f->op.mkdir)
+ res = f->op.mkdir(path, inarg->mode);
+ g_free(path);
+ send_reply(f, in, res, NULL, 0);
+}
+
+static void do_remove(struct fuse *f, struct fuse_in_header *in, char *name)
+{
+ int res;
+ char *path;
+
+ path = get_path_name(in->ino, name);
+ res = -ENOSYS;
+ if(in->opcode == FUSE_UNLINK) {
+ if(f->op.unlink)
+ res = f->op.unlink(path);
+ }
+ else {
+ if(f->op.rmdir)
+ res = f->op.rmdir(path);
+ }
+ g_free(path);
+ send_reply(f, in, res, NULL, 0);
+}
+
+static void do_symlink(struct fuse *f, struct fuse_in_header *in, char *name,
+ char *link)
+{
+ int res;
+ char *path;
+
+ path = get_path_name(in->ino, name);
+ res = -ENOSYS;
+ if(f->op.symlink)
+ res = f->op.symlink(link, path);
+ g_free(path);
+ send_reply(f, in, res, NULL, 0);
}
+
void fuse_loop(struct fuse *f)
{
int res;
@@ -355,6 +385,20 @@ void fuse_loop(struct fuse *f)
case FUSE_MKNOD:
do_mknod(f, in, (struct fuse_mknod_in *) inarg);
break;
+
+ case FUSE_MKDIR:
+ do_mkdir(f, in, (struct fuse_mkdir_in *) inarg);
+ break;
+
+ case FUSE_UNLINK:
+ case FUSE_RMDIR:
+ do_remove(f, in, (char *) inarg);
+ break;
+
+ case FUSE_SYMLINK:
+ do_symlink(f, in, (char *) inarg,
+ ((char *) inarg) + strlen((char *) inarg) + 1);
+ break;
default:
fprintf(stderr, "Operation %i not implemented\n", in->opcode);
@@ -377,7 +421,6 @@ struct fuse *fuse_new()
return f;
}
-
void fuse_set_operations(struct fuse *f, const struct fuse_operations *op)
{
f->op = *op;
@@ -390,4 +433,3 @@ void fuse_destroy(struct fuse *f)
g_hash_table_destroy(f->nametab);
g_free(f);
}
-
generated by cgit v1.2.3 (git 2.39.1) at 2025-10-08 07:35:26 +0000