@@ -78,6 +78,8 @@ typedef struct V9fsPath {
char *data;
} V9fsPath;
+typedef union V9fsFidOpenState V9fsFidOpenState;
+
void cred_init(FsCred *);
typedef struct FileOperations
@@ -94,22 +96,26 @@ typedef struct FileOperations
const char *, FsCred *);
int (*link)(FsContext *, V9fsPath *, V9fsPath *, const char *);
int (*setuid)(FsContext *, uid_t);
- int (*close)(FsContext *, int);
- int (*closedir)(FsContext *, DIR *);
- DIR *(*opendir)(FsContext *, V9fsPath *);
- int (*open)(FsContext *, V9fsPath *, int);
- int (*open2)(FsContext *, V9fsPath *, const char *, int, FsCred *);
- void (*rewinddir)(FsContext *, DIR *);
- off_t (*telldir)(FsContext *, DIR *);
- int (*readdir_r)(FsContext *, DIR *, struct dirent *, struct dirent **);
- void (*seekdir)(FsContext *, DIR *, off_t);
- ssize_t (*preadv)(FsContext *, int, const struct iovec *, int, off_t);
- ssize_t (*pwritev)(FsContext *, int, const struct iovec *, int, off_t);
+ int (*close)(FsContext *, V9fsFidOpenState *);
+ int (*closedir)(FsContext *, V9fsFidOpenState *);
+ int (*opendir)(FsContext *, V9fsPath *, V9fsFidOpenState *);
+ int (*open)(FsContext *, V9fsPath *, int, V9fsFidOpenState *);
+ int (*open2)(FsContext *, V9fsPath *, const char *,
+ int, FsCred *, V9fsFidOpenState *);
+ void (*rewinddir)(FsContext *, V9fsFidOpenState *);
+ off_t (*telldir)(FsContext *, V9fsFidOpenState *);
+ int (*readdir_r)(FsContext *, V9fsFidOpenState *,
+ struct dirent *, struct dirent **);
+ void (*seekdir)(FsContext *, V9fsFidOpenState *, off_t);
+ ssize_t (*preadv)(FsContext *, V9fsFidOpenState *,
+ const struct iovec *, int, off_t);
+ ssize_t (*pwritev)(FsContext *, V9fsFidOpenState *,
+ const struct iovec *, int, off_t);
int (*mkdir)(FsContext *, V9fsPath *, const char *, FsCred *);
- int (*fstat)(FsContext *, int, struct stat *);
+ int (*fstat)(FsContext *, V9fsFidOpenState *, struct stat *);
int (*rename)(FsContext *, const char *, const char *);
int (*truncate)(FsContext *, V9fsPath *, off_t);
- int (*fsync)(FsContext *, int, int);
+ int (*fsync)(FsContext *, V9fsFidOpenState *, int);
int (*statfs)(FsContext *s, V9fsPath *path, struct statfs *stbuf);
ssize_t (*lgetxattr)(FsContext *, V9fsPath *,
const char *, void *, size_t);
@@ -29,7 +29,7 @@ int v9fs_co_readdir_r(V9fsPDU *pdu, V9fsFidState *fidp, struct dirent *dent,
v9fs_co_run_in_worker(
{
errno = 0;
- err = s->ops->readdir_r(&s->ctx, fidp->fs.dir, dent, result);
+ err = s->ops->readdir_r(&s->ctx, &fidp->fs, dent, result);
if (!*result && errno) {
err = -errno;
} else {
@@ -49,7 +49,7 @@ off_t v9fs_co_telldir(V9fsPDU *pdu, V9fsFidState *fidp)
}
v9fs_co_run_in_worker(
{
- err = s->ops->telldir(&s->ctx, fidp->fs.dir);
+ err = s->ops->telldir(&s->ctx, &fidp->fs);
if (err < 0) {
err = -errno;
}
@@ -65,7 +65,7 @@ void v9fs_co_seekdir(V9fsPDU *pdu, V9fsFidState *fidp, off_t offset)
}
v9fs_co_run_in_worker(
{
- s->ops->seekdir(&s->ctx, fidp->fs.dir, offset);
+ s->ops->seekdir(&s->ctx, &fidp->fs, offset);
});
}
@@ -77,7 +77,7 @@ void v9fs_co_rewinddir(V9fsPDU *pdu, V9fsFidState *fidp)
}
v9fs_co_run_in_worker(
{
- s->ops->rewinddir(&s->ctx, fidp->fs.dir);
+ s->ops->rewinddir(&s->ctx, &fidp->fs);
});
}
@@ -129,8 +129,8 @@ int v9fs_co_opendir(V9fsPDU *pdu, V9fsFidState *fidp)
v9fs_path_read_lock(s);
v9fs_co_run_in_worker(
{
- fidp->fs.dir = s->ops->opendir(&s->ctx, &fidp->path);
- if (!fidp->fs.dir) {
+ err = s->ops->opendir(&s->ctx, &fidp->path, &fidp->fs);
+ if (err < 0) {
err = -errno;
} else {
err = 0;
@@ -146,7 +146,7 @@ int v9fs_co_opendir(V9fsPDU *pdu, V9fsFidState *fidp)
return err;
}
-int v9fs_co_closedir(V9fsPDU *pdu, DIR *dir)
+int v9fs_co_closedir(V9fsPDU *pdu, V9fsFidOpenState *fs)
{
int err;
V9fsState *s = pdu->s;
@@ -156,7 +156,7 @@ int v9fs_co_closedir(V9fsPDU *pdu, DIR *dir)
}
v9fs_co_run_in_worker(
{
- err = s->ops->closedir(&s->ctx, dir);
+ err = s->ops->closedir(&s->ctx, fs);
if (err < 0) {
err = -errno;
}
@@ -61,7 +61,7 @@ int v9fs_co_lstat(V9fsPDU *pdu, V9fsPath *path, struct stat *stbuf)
return err;
}
-int v9fs_co_fstat(V9fsPDU *pdu, int fd, struct stat *stbuf)
+int v9fs_co_fstat(V9fsPDU *pdu, V9fsFidState *fidp, struct stat *stbuf)
{
int err;
V9fsState *s = pdu->s;
@@ -71,7 +71,7 @@ int v9fs_co_fstat(V9fsPDU *pdu, int fd, struct stat *stbuf)
}
v9fs_co_run_in_worker(
{
- err = s->ops->fstat(&s->ctx, fd, stbuf);
+ err = s->ops->fstat(&s->ctx, &fidp->fs, stbuf);
if (err < 0) {
err = -errno;
}
@@ -90,8 +90,8 @@ int v9fs_co_open(V9fsPDU *pdu, V9fsFidState *fidp, int flags)
v9fs_path_read_lock(s);
v9fs_co_run_in_worker(
{
- fidp->fs.fd = s->ops->open(&s->ctx, &fidp->path, flags);
- if (fidp->fs.fd == -1) {
+ err = s->ops->open(&s->ctx, &fidp->path, flags, &fidp->fs);
+ if (err == -1) {
err = -errno;
} else {
err = 0;
@@ -130,9 +130,9 @@ int v9fs_co_open2(V9fsPDU *pdu, V9fsFidState *fidp, V9fsString *name, gid_t gid,
v9fs_path_read_lock(s);
v9fs_co_run_in_worker(
{
- fidp->fs.fd = s->ops->open2(&s->ctx, &fidp->path,
- name->data, flags, &cred);
- if (fidp->fs.fd == -1) {
+ err = s->ops->open2(&s->ctx, &fidp->path,
+ name->data, flags, &cred, &fidp->fs);
+ if (err < 0) {
err = -errno;
} else {
v9fs_path_init(&path);
@@ -141,12 +141,12 @@ int v9fs_co_open2(V9fsPDU *pdu, V9fsFidState *fidp, V9fsString *name, gid_t gid,
err = s->ops->lstat(&s->ctx, &path, stbuf);
if (err < 0) {
err = -errno;
- s->ops->close(&s->ctx, fidp->fs.fd);
+ s->ops->close(&s->ctx, &fidp->fs);
} else {
v9fs_path_copy(&fidp->path, &path);
}
} else {
- s->ops->close(&s->ctx, fidp->fs.fd);
+ s->ops->close(&s->ctx, &fidp->fs);
}
v9fs_path_free(&path);
}
@@ -161,7 +161,7 @@ int v9fs_co_open2(V9fsPDU *pdu, V9fsFidState *fidp, V9fsString *name, gid_t gid,
return err;
}
-int v9fs_co_close(V9fsPDU *pdu, int fd)
+int v9fs_co_close(V9fsPDU *pdu, V9fsFidOpenState *fs)
{
int err;
V9fsState *s = pdu->s;
@@ -171,7 +171,7 @@ int v9fs_co_close(V9fsPDU *pdu, int fd)
}
v9fs_co_run_in_worker(
{
- err = s->ops->close(&s->ctx, fd);
+ err = s->ops->close(&s->ctx, fs);
if (err < 0) {
err = -errno;
}
@@ -184,16 +184,15 @@ int v9fs_co_close(V9fsPDU *pdu, int fd)
int v9fs_co_fsync(V9fsPDU *pdu, V9fsFidState *fidp, int datasync)
{
- int fd, err;
+ int err;
V9fsState *s = pdu->s;
if (v9fs_request_cancelled(pdu)) {
return -EINTR;
}
- fd = fidp->fs.fd;
v9fs_co_run_in_worker(
{
- err = s->ops->fsync(&s->ctx, fd, datasync);
+ err = s->ops->fsync(&s->ctx, &fidp->fs, datasync);
if (err < 0) {
err = -errno;
}
@@ -226,16 +225,15 @@ int v9fs_co_link(V9fsPDU *pdu, V9fsFidState *oldfid,
int v9fs_co_pwritev(V9fsPDU *pdu, V9fsFidState *fidp,
struct iovec *iov, int iovcnt, int64_t offset)
{
- int fd, err;
+ int err;
V9fsState *s = pdu->s;
if (v9fs_request_cancelled(pdu)) {
return -EINTR;
}
- fd = fidp->fs.fd;
v9fs_co_run_in_worker(
{
- err = s->ops->pwritev(&s->ctx, fd, iov, iovcnt, offset);
+ err = s->ops->pwritev(&s->ctx, &fidp->fs, iov, iovcnt, offset);
if (err < 0) {
err = -errno;
}
@@ -246,16 +244,15 @@ int v9fs_co_pwritev(V9fsPDU *pdu, V9fsFidState *fidp,
int v9fs_co_preadv(V9fsPDU *pdu, V9fsFidState *fidp,
struct iovec *iov, int iovcnt, int64_t offset)
{
- int fd, err;
+ int err;
V9fsState *s = pdu->s;
if (v9fs_request_cancelled(pdu)) {
return -EINTR;
}
- fd = fidp->fs.fd;
v9fs_co_run_in_worker(
{
- err = s->ops->preadv(&s->ctx, fd, iov, iovcnt, offset);
+ err = s->ops->preadv(&s->ctx, &fidp->fs, iov, iovcnt, offset);
if (err < 0) {
err = -errno;
}
@@ -80,7 +80,7 @@ extern int v9fs_co_rename(V9fsPDU *, V9fsPath *, V9fsPath *);
extern int v9fs_co_unlinkat(V9fsPDU *, V9fsPath *, V9fsString *, int flags);
extern int v9fs_co_renameat(V9fsPDU *, V9fsPath *, V9fsString *,
V9fsPath *, V9fsString *);
-extern int v9fs_co_fstat(V9fsPDU *, int, struct stat *);
+extern int v9fs_co_fstat(V9fsPDU *, V9fsFidState *, struct stat *);
extern int v9fs_co_opendir(V9fsPDU *, V9fsFidState *);
extern int v9fs_co_open(V9fsPDU *, V9fsFidState *, int);
extern int v9fs_co_open2(V9fsPDU *, V9fsFidState *, V9fsString *,
@@ -88,8 +88,8 @@ extern int v9fs_co_open2(V9fsPDU *, V9fsFidState *, V9fsString *,
extern int v9fs_co_lsetxattr(V9fsPDU *, V9fsPath *, V9fsString *,
void *, size_t, int);
extern int v9fs_co_lremovexattr(V9fsPDU *, V9fsPath *, V9fsString *);
-extern int v9fs_co_closedir(V9fsPDU *, DIR *);
-extern int v9fs_co_close(V9fsPDU *, int);
+extern int v9fs_co_closedir(V9fsPDU *, V9fsFidOpenState *);
+extern int v9fs_co_close(V9fsPDU *, V9fsFidOpenState *);
extern int v9fs_co_fsync(V9fsPDU *, V9fsFidState *, int);
extern int v9fs_co_symlink(V9fsPDU *, V9fsFidState *, V9fsString *,
const char *, gid_t, struct stat *);
@@ -133,81 +133,91 @@ static ssize_t handle_readlink(FsContext *fs_ctx, V9fsPath *fs_path,
return ret;
}
-static int handle_close(FsContext *ctx, int fd)
+static int handle_close(FsContext *ctx, V9fsFidOpenState *fs)
{
- return close(fd);
+ return close(fs->fd);
}
-static int handle_closedir(FsContext *ctx, DIR *dir)
+static int handle_closedir(FsContext *ctx, V9fsFidOpenState *fs)
{
- return closedir(dir);
+ return closedir(fs->dir);
}
-static int handle_open(FsContext *ctx, V9fsPath *fs_path, int flags)
+static int handle_open(FsContext *ctx, V9fsPath *fs_path,
+ int flags, V9fsFidOpenState *fs)
{
struct handle_data *data = (struct handle_data *)ctx->private;
- return open_by_handle(data->mountfd, fs_path->data, flags);
+ fs->fd = open_by_handle(data->mountfd, fs_path->data, flags);
+ return fs->fd;
}
-static DIR *handle_opendir(FsContext *ctx, V9fsPath *fs_path)
+static int handle_opendir(FsContext *ctx,
+ V9fsPath *fs_path, V9fsFidOpenState *fs)
{
- int fd;
- fd = handle_open(ctx, fs_path, O_DIRECTORY);
- if (fd < 0) {
- return NULL;
+ int ret;
+ ret = handle_open(ctx, fs_path, O_DIRECTORY, fs);
+ if (ret < 0) {
+ return -1;
}
- return fdopendir(fd);
+ fs->dir = fdopendir(ret);
+ if (!fs->dir) {
+ return -1;
+ }
+ return 0;
}
-static void handle_rewinddir(FsContext *ctx, DIR *dir)
+static void handle_rewinddir(FsContext *ctx, V9fsFidOpenState *fs)
{
- return rewinddir(dir);
+ return rewinddir(fs->dir);
}
-static off_t handle_telldir(FsContext *ctx, DIR *dir)
+static off_t handle_telldir(FsContext *ctx, V9fsFidOpenState *fs)
{
- return telldir(dir);
+ return telldir(fs->dir);
}
-static int handle_readdir_r(FsContext *ctx, DIR *dir, struct dirent *entry,
+static int handle_readdir_r(FsContext *ctx, V9fsFidOpenState *fs,
+ struct dirent *entry,
struct dirent **result)
{
- return readdir_r(dir, entry, result);
+ return readdir_r(fs->dir, entry, result);
}
-static void handle_seekdir(FsContext *ctx, DIR *dir, off_t off)
+static void handle_seekdir(FsContext *ctx, V9fsFidOpenState *fs, off_t off)
{
- return seekdir(dir, off);
+ return seekdir(fs->dir, off);
}
-static ssize_t handle_preadv(FsContext *ctx, int fd, const struct iovec *iov,
+static ssize_t handle_preadv(FsContext *ctx, V9fsFidOpenState *fs,
+ const struct iovec *iov,
int iovcnt, off_t offset)
{
#ifdef CONFIG_PREADV
- return preadv(fd, iov, iovcnt, offset);
+ return preadv(fs->fd, iov, iovcnt, offset);
#else
- int err = lseek(fd, offset, SEEK_SET);
+ int err = lseek(fs->fd, offset, SEEK_SET);
if (err == -1) {
return err;
} else {
- return readv(fd, iov, iovcnt);
+ return readv(fs->fd, iov, iovcnt);
}
#endif
}
-static ssize_t handle_pwritev(FsContext *ctx, int fd, const struct iovec *iov,
+static ssize_t handle_pwritev(FsContext *ctx, V9fsFidOpenState *fs,
+ const struct iovec *iov,
int iovcnt, off_t offset)
{
ssize_t ret;
#ifdef CONFIG_PREADV
- ret = pwritev(fd, iov, iovcnt, offset);
+ ret = pwritev(fs->fd, iov, iovcnt, offset);
#else
- int err = lseek(fd, offset, SEEK_SET);
+ int err = lseek(fs->fd, offset, SEEK_SET);
if (err == -1) {
return err;
} else {
- ret = writev(fd, iov, iovcnt);
+ ret = writev(fs->fd, iov, iovcnt);
}
#endif
#ifdef CONFIG_SYNC_FILE_RANGE
@@ -217,7 +227,7 @@ static ssize_t handle_pwritev(FsContext *ctx, int fd, const struct iovec *iov,
* We want to ensure that we don't leave dirty pages in the cache
* after write when writeout=immediate is sepcified.
*/
- sync_file_range(fd, offset, ret,
+ sync_file_range(fs->fd, offset, ret,
SYNC_FILE_RANGE_WAIT_BEFORE | SYNC_FILE_RANGE_WRITE);
}
#endif
@@ -274,13 +284,14 @@ static int handle_mkdir(FsContext *fs_ctx, V9fsPath *dir_path,
return ret;
}
-static int handle_fstat(FsContext *fs_ctx, int fd, struct stat *stbuf)
+static int handle_fstat(FsContext *fs_ctx, V9fsFidOpenState *fs,
+ struct stat *stbuf)
{
- return fstat(fd, stbuf);
+ return fstat(fs->fd, stbuf);
}
static int handle_open2(FsContext *fs_ctx, V9fsPath *dir_path, const char *name,
- int flags, FsCred *credp)
+ int flags, FsCred *credp, V9fsFidOpenState *fs)
{
int ret;
int dirfd, fd;
@@ -296,6 +307,8 @@ static int handle_open2(FsContext *fs_ctx, V9fsPath *dir_path, const char *name,
if (ret < 0) {
close(fd);
fd = ret;
+ } else {
+ fs->fd = fd;
}
}
close(dirfd);
@@ -411,12 +424,12 @@ static int handle_remove(FsContext *ctx, const char *path)
return -1;
}
-static int handle_fsync(FsContext *ctx, int fd, int datasync)
+static int handle_fsync(FsContext *ctx, V9fsFidOpenState *fs, int datasync)
{
if (datasync) {
- return qemu_fdatasync(fd);
+ return qemu_fdatasync(fs->fd);
} else {
- return fsync(fd);
+ return fsync(fs->fd);
}
}
@@ -575,7 +588,8 @@ static int handle_unlinkat(FsContext *ctx, V9fsPath *dir,
static int handle_ioc_getversion(FsContext *ctx, V9fsPath *path,
mode_t st_mode, uint64_t *st_gen)
{
- int err, fd;
+ int err;
+ V9fsFidOpenState fid_open;
/*
* Do not try to open special files like device nodes, fifos etc
@@ -584,12 +598,12 @@ static int handle_ioc_getversion(FsContext *ctx, V9fsPath *path,
if (!S_ISREG(st_mode) && !S_ISDIR(st_mode)) {
return 0;
}
- fd = handle_open(ctx, path, O_RDONLY);
- if (fd < 0) {
- return fd;
+ err = handle_open(ctx, path, O_RDONLY, &fid_open);
+ if (err < 0) {
+ return err;
}
- err = ioctl(fd, FS_IOC_GETVERSION, st_gen);
- handle_close(ctx, fd);
+ err = ioctl(fid_open.fd, FS_IOC_GETVERSION, st_gen);
+ handle_close(ctx, &fid_open);
return err;
}
@@ -156,81 +156,91 @@ static ssize_t local_readlink(FsContext *fs_ctx, V9fsPath *fs_path,
return tsize;
}
-static int local_close(FsContext *ctx, int fd)
+static int local_close(FsContext *ctx, V9fsFidOpenState *fs)
{
- return close(fd);
+ return close(fs->fd);
}
-static int local_closedir(FsContext *ctx, DIR *dir)
+static int local_closedir(FsContext *ctx, V9fsFidOpenState *fs)
{
- return closedir(dir);
+ return closedir(fs->dir);
}
-static int local_open(FsContext *ctx, V9fsPath *fs_path, int flags)
+static int local_open(FsContext *ctx, V9fsPath *fs_path,
+ int flags, V9fsFidOpenState *fs)
{
char buffer[PATH_MAX];
char *path = fs_path->data;
- return open(rpath(ctx, path, buffer), flags);
+ fs->fd = open(rpath(ctx, path, buffer), flags);
+ return fs->fd;
}
-static DIR *local_opendir(FsContext *ctx, V9fsPath *fs_path)
+static int local_opendir(FsContext *ctx,
+ V9fsPath *fs_path, V9fsFidOpenState *fs)
{
char buffer[PATH_MAX];
char *path = fs_path->data;
- return opendir(rpath(ctx, path, buffer));
+ fs->dir = opendir(rpath(ctx, path, buffer));
+ if (!fs->dir) {
+ return -1;
+ }
+ return 0;
}
-static void local_rewinddir(FsContext *ctx, DIR *dir)
+static void local_rewinddir(FsContext *ctx, V9fsFidOpenState *fs)
{
- return rewinddir(dir);
+ return rewinddir(fs->dir);
}
-static off_t local_telldir(FsContext *ctx, DIR *dir)
+static off_t local_telldir(FsContext *ctx, V9fsFidOpenState *fs)
{
- return telldir(dir);
+ return telldir(fs->dir);
}
-static int local_readdir_r(FsContext *ctx, DIR *dir, struct dirent *entry,
+static int local_readdir_r(FsContext *ctx, V9fsFidOpenState *fs,
+ struct dirent *entry,
struct dirent **result)
{
- return readdir_r(dir, entry, result);
+ return readdir_r(fs->dir, entry, result);
}
-static void local_seekdir(FsContext *ctx, DIR *dir, off_t off)
+static void local_seekdir(FsContext *ctx, V9fsFidOpenState *fs, off_t off)
{
- return seekdir(dir, off);
+ return seekdir(fs->dir, off);
}
-static ssize_t local_preadv(FsContext *ctx, int fd, const struct iovec *iov,
+static ssize_t local_preadv(FsContext *ctx, V9fsFidOpenState *fs,
+ const struct iovec *iov,
int iovcnt, off_t offset)
{
#ifdef CONFIG_PREADV
- return preadv(fd, iov, iovcnt, offset);
+ return preadv(fs->fd, iov, iovcnt, offset);
#else
- int err = lseek(fd, offset, SEEK_SET);
+ int err = lseek(fs->fd, offset, SEEK_SET);
if (err == -1) {
return err;
} else {
- return readv(fd, iov, iovcnt);
+ return readv(fs->fd, iov, iovcnt);
}
#endif
}
-static ssize_t local_pwritev(FsContext *ctx, int fd, const struct iovec *iov,
+static ssize_t local_pwritev(FsContext *ctx, V9fsFidOpenState *fs,
+ const struct iovec *iov,
int iovcnt, off_t offset)
{
ssize_t ret
;
#ifdef CONFIG_PREADV
- ret = pwritev(fd, iov, iovcnt, offset);
+ ret = pwritev(fs->fd, iov, iovcnt, offset);
#else
- int err = lseek(fd, offset, SEEK_SET);
+ int err = lseek(fs->fd, offset, SEEK_SET);
if (err == -1) {
return err;
} else {
- ret = writev(fd, iov, iovcnt);
+ ret = writev(fs->fd, iov, iovcnt);
}
#endif
#ifdef CONFIG_SYNC_FILE_RANGE
@@ -240,7 +250,7 @@ static ssize_t local_pwritev(FsContext *ctx, int fd, const struct iovec *iov,
* We want to ensure that we don't leave dirty pages in the cache
* after write when writeout=immediate is sepcified.
*/
- sync_file_range(fd, offset, ret,
+ sync_file_range(fs->fd, offset, ret,
SYNC_FILE_RANGE_WAIT_BEFORE | SYNC_FILE_RANGE_WRITE);
}
#endif
@@ -356,10 +366,11 @@ out:
return err;
}
-static int local_fstat(FsContext *fs_ctx, int fd, struct stat *stbuf)
+static int local_fstat(FsContext *fs_ctx,
+ V9fsFidOpenState *fs, struct stat *stbuf)
{
int err;
- err = fstat(fd, stbuf);
+ err = fstat(fs->fd, stbuf);
if (err) {
return err;
}
@@ -370,16 +381,20 @@ static int local_fstat(FsContext *fs_ctx, int fd, struct stat *stbuf)
mode_t tmp_mode;
dev_t tmp_dev;
- if (fgetxattr(fd, "user.virtfs.uid", &tmp_uid, sizeof(uid_t)) > 0) {
+ if (fgetxattr(fs->fd, "user.virtfs.uid",
+ &tmp_uid, sizeof(uid_t)) > 0) {
stbuf->st_uid = tmp_uid;
}
- if (fgetxattr(fd, "user.virtfs.gid", &tmp_gid, sizeof(gid_t)) > 0) {
+ if (fgetxattr(fs->fd, "user.virtfs.gid",
+ &tmp_gid, sizeof(gid_t)) > 0) {
stbuf->st_gid = tmp_gid;
}
- if (fgetxattr(fd, "user.virtfs.mode", &tmp_mode, sizeof(mode_t)) > 0) {
+ if (fgetxattr(fs->fd, "user.virtfs.mode",
+ &tmp_mode, sizeof(mode_t)) > 0) {
stbuf->st_mode = tmp_mode;
}
- if (fgetxattr(fd, "user.virtfs.rdev", &tmp_dev, sizeof(dev_t)) > 0) {
+ if (fgetxattr(fs->fd, "user.virtfs.rdev",
+ &tmp_dev, sizeof(dev_t)) > 0) {
stbuf->st_rdev = tmp_dev;
}
}
@@ -387,7 +402,7 @@ static int local_fstat(FsContext *fs_ctx, int fd, struct stat *stbuf)
}
static int local_open2(FsContext *fs_ctx, V9fsPath *dir_path, const char *name,
- int flags, FsCred *credp)
+ int flags, FsCred *credp, V9fsFidOpenState *fs)
{
char *path;
int fd = -1;
@@ -428,6 +443,7 @@ static int local_open2(FsContext *fs_ctx, V9fsPath *dir_path, const char *name,
}
}
err = fd;
+ fs->fd = fd;
goto out;
err_end:
@@ -577,12 +593,12 @@ static int local_remove(FsContext *ctx, const char *path)
return remove(rpath(ctx, path, buffer));
}
-static int local_fsync(FsContext *ctx, int fd, int datasync)
+static int local_fsync(FsContext *ctx, V9fsFidOpenState *fs, int datasync)
{
if (datasync) {
- return qemu_fdatasync(fd);
+ return qemu_fdatasync(fs->fd);
} else {
- return fsync(fd);
+ return fsync(fs->fd);
}
}
@@ -677,7 +693,9 @@ static int local_unlinkat(FsContext *ctx, V9fsPath *dir,
static int local_ioc_getversion(FsContext *ctx, V9fsPath *path,
mode_t st_mode, uint64_t *st_gen)
{
- int err, fd;
+ int err;
+ V9fsFidOpenState fid_open;
+
/*
* Do not try to open special files like device nodes, fifos etc
* We can get fd for regular files and directories only
@@ -685,12 +703,12 @@ static int local_ioc_getversion(FsContext *ctx, V9fsPath *path,
if (!S_ISREG(st_mode) && !S_ISDIR(st_mode)) {
return 0;
}
- fd = local_open(ctx, path, O_RDONLY);
- if (fd < 0) {
- return fd;
+ err = local_open(ctx, path, O_RDONLY, &fid_open);
+ if (err < 0) {
+ return err;
}
- err = ioctl(fd, FS_IOC_GETVERSION, st_gen);
- local_close(ctx, fd);
+ err = ioctl(fid_open.fd, FS_IOC_GETVERSION, st_gen);
+ local_close(ctx, &fid_open);
return err;
}
@@ -455,11 +455,11 @@ static int free_fid(V9fsPDU *pdu, V9fsFidState *fidp)
if (fidp->fid_type == P9_FID_FILE) {
/* If we reclaimed the fd no need to close */
if (fidp->fs.fd != -1) {
- retval = v9fs_co_close(pdu, fidp->fs.fd);
+ retval = v9fs_co_close(pdu, &fidp->fs);
}
} else if (fidp->fid_type == P9_FID_DIR) {
if (fidp->fs.dir != NULL) {
- retval = v9fs_co_closedir(pdu, fidp->fs.dir);
+ retval = v9fs_co_closedir(pdu, &fidp->fs);
}
} else if (fidp->fid_type == P9_FID_XATTR) {
retval = v9fs_xattr_fid_clunk(pdu, fidp);
@@ -567,9 +567,9 @@ void v9fs_reclaim_fd(V9fsPDU *pdu)
f = reclaim_list;
reclaim_list = f->rclm_lst;
if (f->fid_type == P9_FID_FILE) {
- v9fs_co_close(pdu, f->fs_reclaim.fd);
+ v9fs_co_close(pdu, &f->fs_reclaim);
} else if (f->fid_type == P9_FID_DIR) {
- v9fs_co_closedir(pdu, f->fs_reclaim.dir);
+ v9fs_co_closedir(pdu, &f->fs_reclaim);
}
f->rclm_lst = NULL;
/*
@@ -3010,7 +3010,7 @@ static void v9fs_lock(void *opaque)
err = -ENOENT;
goto out_nofid;
}
- err = v9fs_co_fstat(pdu, fidp->fs.fd, &stbuf);
+ err = v9fs_co_fstat(pdu, fidp, &stbuf);
if (err < 0) {
goto out;
}
@@ -3053,7 +3053,7 @@ static void v9fs_getlock(void *opaque)
err = -ENOENT;
goto out_nofid;
}
- err = v9fs_co_fstat(pdu, fidp->fs.fd, &stbuf);
+ err = v9fs_co_fstat(pdu, fidp, &stbuf);
if (err < 0) {
goto out;
}
@@ -204,20 +204,23 @@ typedef struct V9fsXattr
int flags;
} V9fsXattr;
+/*
+ * Filled by fs driver on open and other
+ * calls.
+ */
+union V9fsFidOpenState {
+ int fd;
+ DIR *dir;
+ V9fsXattr xattr;
+};
+
struct V9fsFidState
{
int fid_type;
int32_t fid;
V9fsPath path;
- union {
- int fd;
- DIR *dir;
- V9fsXattr xattr;
- } fs;
- union {
- int fd;
- DIR *dir;
- } fs_reclaim;
+ V9fsFidOpenState fs;
+ V9fsFidOpenState fs_reclaim;
int flags;
int open_flags;
uid_t uid;