Skip to content

FUSE: Add a very limited mknod() implementation #21

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
rgacogne wants to merge 1 commit into
base: master
Choose a base branch
from
Open

FUSE: Add a very limited mknod() implementation #21

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
63 changes: 62 additions & 1 deletion src/cloudFUSE/cloudFUSE_low.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -206,6 +206,21 @@ static void cgfuse_reply_create_cb(void * const req,
&fi);
}

static void cgfuse_reply_mknod_cb(void * const req,
cgfs_inode * const inode,
cgfs_file_handler * const file_handler)
{
CGUTILS_ASSERT(req != NULL);

cgfuse_reply_entry(req, inode);

if (COMPILER_LIKELY(file_handler != NULL)) {
cgfs_async_file_handler_release(cgfs_get_data(),
cgfs_inode_get_number(inode),
file_handler);
}
}

static void cgfuse_reply_err(fuse_req_t const req,
int const status)
{
Expand Down Expand Up @@ -739,6 +754,51 @@ static void cgfuse_create(fuse_req_t const req,
}
}

static void cgfuse_mknod(fuse_req_t const req,
fuse_ino_t const parent,
char const * const name,
mode_t const mode,
dev_t const rdev)
{
/*
Create a regular file (character device, block device, fifo and socket node are not supported).
*/
CGUTILS_ASSERT(req != NULL);
CGUTILS_ASSERT(parent > 0);
CGUTILS_ASSERT(name != NULL);
struct fuse_ctx const * context = fuse_req_ctx(req);
(void) rdev;

if (COMPILER_LIKELY(context != NULL))
{
if (COMPILER_LIKELY(mode & S_IFREG)) {
int const flags = O_RDONLY;

uid_t const uid = context->uid;
uid_t const gid = context->gid;
mode_t const mask = context->umask;

cgfs_async_create_and_open(cgfs_get_data(),
parent,
name,
uid,
gid,
mode & ~mask,
flags,
&cgfuse_reply_mknod_cb,
&cgfuse_err_cb,
req);
}
else {
cgfuse_reply_err(req, ENOSYS);
}
}
else
{
cgfuse_reply_err(req, EINVAL);
}
}

static void cgfuse_open(fuse_req_t const req,
fuse_ino_t const ino,
struct fuse_file_info * const fi)
Expand Down Expand Up @@ -1321,6 +1381,8 @@ static struct fuse_lowlevel_ops const cgfuse_operations =
.readlink = cgfuse_readlink,
.symlink = cgfuse_symlink,

.mknod = cgfuse_mknod,

#if 0
#if FUSE_VERSION >= 29
.write_buf = cgfuse_write_buf,
Expand All @@ -1344,7 +1406,6 @@ static struct fuse_lowlevel_ops const cgfuse_operations =
// .access (useless with default permissions flag)
// .ioctl
// .poll
// .mknod (not supported)
// .bmap (only for block device)
// .retrieve_reply (only used with the kernel cache API)
};
Expand Down