/**
* @brief Create a regular file.
*
* @param dir_hdl Handle of parent directory where the file is to be created.
* @param filename Pointer to the name of the file to be created.
* @param op_ctx Authentication context for the operation (user,...).
* @param accessmode Mode for the file to be created.
* @param gpfs_fh Pointer to the handle of the created file.
* @param fsal_attr Attributes of the created file.
* @return ERR_FSAL_NO_ERROR on success, otherwise error
*
*/
fsal_status_t
GPFSFSAL_create(struct fsal_obj_handle *dir_hdl, const char *filename,
const struct req_op_context *op_ctx, uint32_t accessmode,
struct gpfs_file_handle *gpfs_fh, struct attrlist *fsal_attr)
{
fsal_status_t status;
mode_t unix_mode;
/* note : fsal_attr is optional. */
if (!dir_hdl || !op_ctx || !gpfs_fh || !filename)
return fsalstat(ERR_FSAL_FAULT, 0);
/* convert fsal mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~op_ctx->fsal_export->exp_ops.
fs_umask(op_ctx->fsal_export);
LogFullDebug(COMPONENT_FSAL, "Creation mode: 0%o", accessmode);
/* call to filesystem */
fsal_set_credentials(op_ctx->creds);
status = fsal_internal_create(dir_hdl, filename, unix_mode | S_IFREG,
0, gpfs_fh, NULL);
fsal_restore_ganesha_credentials();
if (FSAL_IS_ERROR(status))
return status;
/* retrieve file attributes */
return GPFSFSAL_getattrs(op_ctx->fsal_export, dir_hdl->fs->private_data,
op_ctx, gpfs_fh, fsal_attr);
}
/**
* FSAL_mkdir:
* Create a directory.
*
* \param parent_directory_handle (input):
* Handle of the parent directory where
* the subdirectory is to be created.
* \param p_dirname (input):
* Pointer to the name of the directory to be created.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param accessmode (input):
* Mode for the directory to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param object_handle (output):
* Pointer to the handle of the created directory.
* \param object_attributes (optionnal input/output):
* The attributes of the created directory.
* As input, it defines the attributes that the caller
* wants to retrieve (by positioning flags into this structure)
* and the output is built considering this input
* (it fills the structure according to the flags it contains).
* May be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - ERR_FSAL_STALE (parent_directory_handle does not address an existing object)
* - ERR_FSAL_FAULT (a NULL pointer was passed as mandatory argument)
* - Other error codes can be returned :
* ERR_FSAL_ACCESS, ERR_FSAL_EXIST, ERR_FSAL_IO, ...
*
* NB: if getting postop attributes failed,
* the function does not return an error
* but the FSAL_ATTR_RDATTR_ERR bit is set in
* the object_attributes->asked_attributes field.
*/
fsal_status_t ZFSFSAL_mkdir(zfsfsal_handle_t * parent_directory_handle, /* IN */
fsal_name_t * p_dirname, /* IN */
zfsfsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
zfsfsal_handle_t * object_handle, /* OUT */
fsal_attrib_list_t * object_attributes /* [ IN/OUT ] */
)
{
int rc;
mode_t unix_mode;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!parent_directory_handle || !p_context || !object_handle || !p_dirname)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mkdir);
/* convert fsal args to ZFS args */
unix_mode = fsal2unix_mode(accessmode);
/* Applying FSAL umask */
unix_mode = unix_mode & ~global_fs_info.umask;
TakeTokenFSCall();
/* Create the directory */
inogen_t object;
rc = libzfswrap_mkdir(p_context->export_context->p_vfs, &p_context->user_credential.cred,
parent_directory_handle->data.zfs_handle, p_dirname->name, unix_mode, &object);
ReleaseTokenFSCall();
/* >> interpret returned error << */
if(rc)
Return(posix2fsal_error(rc), 0, INDEX_FSAL_create);
/* set output handle */
object_handle->data.zfs_handle = object;
object_handle->data.type = FSAL_TYPE_DIR;
if(object_attributes)
{
/**@TODO: skip this => libzfswrap_mkdir might return attributes */
fsal_status_t status = ZFSFSAL_getattrs(object_handle, p_context, object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(object_attributes->asked_attributes);
FSAL_SET_MASK(object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_mkdir);
}
/**
* FSAL_create:
* Create a regular file.
*
* \param parent_directory_handle (input):
* Handle of the parent directory where the file is to be created.
* \param p_filename (input):
* Pointer to the name of the file to be created.
* \param cred (input):
* Authentication context for the operation (user, export...).
* \param accessmode (input):
* Mode for the file to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param object_handle (output):
* Pointer to the handle of the created file.
* \param object_attributes (optionnal input/output):
* The postop attributes of the created file.
* As input, it defines the attributes that the caller
* wants to retrieve (by positioning flags into this structure)
* and the output is built considering this input
* (it fills the structure according to the flags it contains).
* Can be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - ERR_FSAL_STALE (parent_directory_handle does not address an existing object)
* - ERR_FSAL_FAULT (a NULL pointer was passed as mandatory argument)
* - Other error codes can be returned :
* ERR_FSAL_ACCESS, ERR_FSAL_EXIST, ERR_FSAL_IO, ...
*
* NB: if getting postop attributes failed,
* the function does not return an error
* but the FSAL_ATTR_RDATTR_ERR bit is set in
* the object_attributes->asked_attributes field.
*/
fsal_status_t ZFSFSAL_create(zfsfsal_handle_t * parent_directory_handle, /* IN */
fsal_name_t * p_filename, /* IN */
zfsfsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
zfsfsal_handle_t * object_handle, /* OUT */
fsal_attrib_list_t * object_attributes /* [ IN/OUT ] */
)
{
int rc;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!parent_directory_handle || !p_context || !object_handle || !p_filename)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_create);
/* >> convert fsal args to your fs args.
* Don't forget applying FSAL umask :
* mode = mode & ~global_fs_info.umask << */
TakeTokenFSCall();
inogen_t object;
rc = libzfswrap_create(p_context->export_context->p_vfs, &p_context->user_credential.cred,
parent_directory_handle->data.zfs_handle, p_filename->name,
fsal2unix_mode(accessmode), &object);
ReleaseTokenFSCall();
/* >> interpret returned error << */
if(rc)
Return(posix2fsal_error(rc), 0, INDEX_FSAL_create);
/* >> set output handle << */
object_handle->data.zfs_handle = object;
object_handle->data.type = FSAL_TYPE_FILE;
if(object_attributes)
{
fsal_status_t status = ZFSFSAL_getattrs(object_handle, p_context, object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(object_attributes->asked_attributes);
FSAL_SET_MASK(object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_create);
}
/**
* @brief Create a directory.
*
* @param dir_hdl Handle of the parent directory
* @param dir_name Pointer to the name of the directory to be created.
* @param op_ctx Authentication context for the operation (user,...).
* @param accessmode Mode for the directory to be created.
* @param gpfs_fh Pointer to the handle of the created directory.
* @param fsal_attr Attributes of the created directory.
* @return ERR_FSAL_NO_ERROR on success, error otherwise
*
*/
fsal_status_t
GPFSFSAL_mkdir(struct fsal_obj_handle *dir_hdl, const char *dir_name,
const struct req_op_context *op_ctx, uint32_t accessmode,
struct gpfs_file_handle *gpfs_fh, struct attrlist *obj_attr)
{
mode_t unix_mode;
fsal_status_t status;
/* note : obj_attr is optional. */
if (!dir_hdl || !op_ctx || !gpfs_fh || !dir_name)
return fsalstat(ERR_FSAL_FAULT, 0);
/* convert FSAL mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode &
~op_ctx->fsal_export->exp_ops.fs_umask(op_ctx->fsal_export);
/* build new entry path */
/* creates the directory and get its handle */
fsal_set_credentials(op_ctx->creds);
status = fsal_internal_create(dir_hdl, dir_name, unix_mode | S_IFDIR,
0, gpfs_fh, NULL);
fsal_restore_ganesha_credentials();
if (FSAL_IS_ERROR(status))
return status;
/* retrieve file attributes */
return GPFSFSAL_getattrs(op_ctx->fsal_export,
dir_hdl->fs->private_data,
op_ctx, gpfs_fh, obj_attr);
}
fsal_status_t vfs_open2(struct fsal_obj_handle *obj_hdl,
struct state_t *state,
fsal_openflags_t openflags,
enum fsal_create_mode createmode,
const char *name,
struct attrlist *attrib_set,
fsal_verifier_t verifier,
struct fsal_obj_handle **new_obj,
struct attrlist *attrs_out,
bool *caller_perm_check)
{
int posix_flags = 0;
int fd, dir_fd;
int retval = 0;
mode_t unix_mode;
fsal_status_t status = {0, 0};
struct vfs_fd *my_fd = NULL;
struct vfs_fsal_obj_handle *myself, *hdl = NULL;
struct stat stat;
vfs_file_handle_t *fh = NULL;
bool truncated;
bool created = false;
if (state != NULL)
my_fd = (struct vfs_fd *)(state + 1);
myself = container_of(obj_hdl, struct vfs_fsal_obj_handle, obj_handle);
LogAttrlist(COMPONENT_FSAL, NIV_FULL_DEBUG,
"attrib_set ", attrib_set, false);
fsal2posix_openflags(openflags, &posix_flags);
truncated = (posix_flags & O_TRUNC) != 0;
LogFullDebug(COMPONENT_FSAL,
truncated ? "Truncate" : "No truncate");
if (createmode >= FSAL_EXCLUSIVE) {
/* Now fixup attrs for verifier if exclusive create */
set_common_verifier(attrib_set, verifier);
}
if (name == NULL) {
/* This is an open by handle */
struct vfs_fsal_obj_handle *myself;
myself = container_of(obj_hdl,
struct vfs_fsal_obj_handle,
obj_handle);
if (obj_hdl->fsal != obj_hdl->fs->fsal) {
LogDebug(COMPONENT_FSAL,
"FSAL %s operation for handle belonging to FSAL %s, return EXDEV",
obj_hdl->fsal->name, obj_hdl->fs->fsal->name);
return fsalstat(posix2fsal_error(EXDEV), EXDEV);
}
if (state != NULL) {
/* Prepare to take the share reservation, but only if we
* are called with a valid state (if state is NULL the
* caller is a stateless create such as NFS v3 CREATE).
*/
/* This can block over an I/O operation. */
PTHREAD_RWLOCK_wrlock(&obj_hdl->lock);
/* Check share reservation conflicts. */
status = check_share_conflict(&myself->u.file.share,
openflags,
false);
if (FSAL_IS_ERROR(status)) {
PTHREAD_RWLOCK_unlock(&obj_hdl->lock);
return status;
}
/* Take the share reservation now by updating the
* counters.
*/
update_share_counters(&myself->u.file.share,
FSAL_O_CLOSED,
openflags);
PTHREAD_RWLOCK_unlock(&obj_hdl->lock);
} else {
/* We need to use the global fd to continue, and take
* the lock to protect it.
*/
my_fd = &hdl->u.file.fd;
PTHREAD_RWLOCK_wrlock(&obj_hdl->lock);
}
status = vfs_open_my_fd(myself, openflags, posix_flags, my_fd);
if (FSAL_IS_ERROR(status)) {
if (state == NULL) {
/* Release the lock taken above, and return
* since there is nothing to undo.
*/
PTHREAD_RWLOCK_unlock(&obj_hdl->lock);
return status;
} else {
/* Error - need to release the share */
goto undo_share;
}
}
if (createmode >= FSAL_EXCLUSIVE || truncated) {
/* Refresh the attributes */
struct stat stat;
retval = fstat(my_fd->fd, &stat);
if (retval == 0) {
LogFullDebug(COMPONENT_FSAL,
"New size = %" PRIx64,
stat.st_size);
} else {
if (errno == EBADF)
errno = ESTALE;
status = fsalstat(posix2fsal_error(errno),
errno);
}
/* Now check verifier for exclusive, but not for
* FSAL_EXCLUSIVE_9P.
*/
if (!FSAL_IS_ERROR(status) &&
createmode >= FSAL_EXCLUSIVE &&
createmode != FSAL_EXCLUSIVE_9P &&
!check_verifier_stat(&stat, verifier)) {
/* Verifier didn't match, return EEXIST */
status =
fsalstat(posix2fsal_error(EEXIST), EEXIST);
}
}
if (state == NULL) {
/* If no state, release the lock taken above and return
* status.
*/
PTHREAD_RWLOCK_unlock(&obj_hdl->lock);
return status;
}
if (!FSAL_IS_ERROR(status)) {
/* Return success. */
return status;
}
(void) vfs_close_my_fd(my_fd);
undo_share:
/* Can only get here with state not NULL and an error */
/* On error we need to release our share reservation
* and undo the update of the share counters.
* This can block over an I/O operation.
*/
PTHREAD_RWLOCK_wrlock(&obj_hdl->lock);
update_share_counters(&myself->u.file.share,
openflags,
FSAL_O_CLOSED);
PTHREAD_RWLOCK_unlock(&obj_hdl->lock);
return status;
}
/* In this path where we are opening by name, we can't check share
* reservation yet since we don't have an object_handle yet. If we
* indeed create the object handle (there is no race with another
* open by name), then there CAN NOT be a share conflict, otherwise
* the share conflict will be resolved when the object handles are
* merged.
*/
#ifdef ENABLE_VFS_DEBUG_ACL
if (createmode != FSAL_NO_CREATE) {
/* Need to ammend attributes for inherited ACL, these will be
* set later. We also need to test for permission to create
* since there might be an ACL.
*/
struct attrlist attrs;
fsal_accessflags_t access_type;
access_type = FSAL_MODE_MASK_SET(FSAL_W_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_FILE);
status = obj_hdl->obj_ops.test_access(obj_hdl, access_type,
NULL, NULL, false);
if (FSAL_IS_ERROR(status))
return status;
fsal_prepare_attrs(&attrs, ATTR_ACL);
status = obj_hdl->obj_ops.getattrs(obj_hdl, &attrs);
if (FSAL_IS_ERROR(status))
return status;
status.major = fsal_inherit_acls(attrib_set, attrs.acl,
FSAL_ACE_FLAG_FILE_INHERIT);
/* Done with the attrs */
fsal_release_attrs(&attrs);
if (FSAL_IS_ERROR(status))
return status;
}
#endif /* ENABLE_VFS_DEBUG_ACL */
if (createmode != FSAL_NO_CREATE) {
/* Now add in O_CREAT and O_EXCL. */
posix_flags |= O_CREAT;
/* And if we are at least FSAL_GUARDED, do an O_EXCL create. */
if (createmode >= FSAL_GUARDED)
posix_flags |= O_EXCL;
/* Fetch the mode attribute to use in the openat system call. */
unix_mode = fsal2unix_mode(attrib_set->mode) &
~op_ctx->fsal_export->exp_ops.fs_umask(op_ctx->fsal_export);
/* Don't set the mode if we later set the attributes */
FSAL_UNSET_MASK(attrib_set->mask, ATTR_MODE);
}
if (createmode == FSAL_UNCHECKED && (attrib_set->mask != 0)) {
/* If we have FSAL_UNCHECKED and want to set more attributes
* than the mode, we attempt an O_EXCL create first, if that
* succeeds, then we will be allowed to set the additional
* attributes, otherwise, we don't know we created the file
* and this can NOT set the attributes.
*/
posix_flags |= O_EXCL;
}
dir_fd = vfs_fsal_open(myself, O_PATH | O_NOACCESS, &status.major);
if (dir_fd < 0)
return fsalstat(status.major, -dir_fd);
/** @todo: not sure what this accomplishes... */
retval = vfs_stat_by_handle(dir_fd, &stat);
if (retval < 0) {
retval = errno;
status = fsalstat(posix2fsal_error(retval), retval);
goto direrr;
}
/* Become the user because we are creating an object in this dir.
*/
if (createmode != FSAL_NO_CREATE)
fsal_set_credentials(op_ctx->creds);
if ((posix_flags & O_CREAT) != 0)
fd = openat(dir_fd, name, posix_flags, unix_mode);
else
fd = openat(dir_fd, name, posix_flags);
if (fd == -1 && errno == EEXIST && createmode == FSAL_UNCHECKED) {
/* We tried to create O_EXCL to set attributes and failed.
* Remove O_EXCL and retry. We still try O_CREAT again just in
* case file disappears out from under us.
*
* Note that because we have dropped O_EXCL, later on we will
* not assume we created the file, and thus will not set
* additional attributes. We don't need to separately track
* the condition of not wanting to set attributes.
*/
posix_flags &= ~O_EXCL;
fd = openat(dir_fd, name, posix_flags, unix_mode);
}
/* Preserve errno */
retval = errno;
/* If we were creating, restore credentials now. */
if (createmode != FSAL_NO_CREATE)
fsal_restore_ganesha_credentials();
if (fd < 0) {
status = fsalstat(posix2fsal_error(retval), retval);
goto direrr;
}
/* Remember if we were responsible for creating the file.
* Note that in an UNCHECKED retry we MIGHT have re-created the
* file and won't remember that. Oh well, so in that rare case we
* leak a partially created file if we have a subsequent error in here.
* Also notify caller to do permission check if we DID NOT create the
* file. Note it IS possible in the case of a race between an UNCHECKED
* open and an external unlink, we did create the file, but we will
* still force a permission check. Of course that permission check
* SHOULD succeed since we also won't set the mode the caller requested
* and the default file create permissions SHOULD allow the owner
* read/write.
*/
created = (posix_flags & O_EXCL) != 0;
*caller_perm_check = !created;
vfs_alloc_handle(fh);
retval = vfs_name_to_handle(dir_fd, obj_hdl->fs, name, fh);
if (retval < 0) {
retval = errno;
status = fsalstat(posix2fsal_error(retval), retval);
goto fileerr;
}
retval = fstat(fd, &stat);
if (retval < 0) {
retval = errno;
status = fsalstat(posix2fsal_error(retval), retval);
goto fileerr;
}
/* allocate an obj_handle and fill it up */
hdl = alloc_handle(dir_fd, fh, obj_hdl->fs, &stat, myself->handle, name,
op_ctx->fsal_export);
if (hdl == NULL) {
status = fsalstat(posix2fsal_error(ENOMEM), ENOMEM);
goto fileerr;
}
/* If we didn't have a state above, use the global fd. At this point,
* since we just created the global fd, no one else can have a
* reference to it, and thus we can mamnipulate unlocked which is
* handy since we can then call setattr2 which WILL take the lock
* without a double locking deadlock.
*/
if (my_fd == NULL)
my_fd = &hdl->u.file.fd;
my_fd->fd = fd;
my_fd->openflags = openflags;
*new_obj = &hdl->obj_handle;
if (created && attrib_set->mask != 0) {
/* Set attributes using our newly opened file descriptor as the
* share_fd if there are any left to set (mode and truncate
* have already been handled).
*
* Note that we only set the attributes if we were responsible
* for creating the file and we have attributes to set.
*
* Note if we have ENABLE_VFS_DEBUG_ACL an inherited ACL might
* be part of the attributes we are setting here.
*/
status = (*new_obj)->obj_ops.setattr2(*new_obj,
false,
state,
attrib_set);
if (FSAL_IS_ERROR(status)) {
/* Release the handle we just allocated. */
(*new_obj)->obj_ops.release(*new_obj);
*new_obj = NULL;
goto fileerr;
}
if (attrs_out != NULL) {
status = (*new_obj)->obj_ops.getattrs(*new_obj,
attrs_out);
if (FSAL_IS_ERROR(status) &&
(attrs_out->mask & ATTR_RDATTR_ERR) == 0) {
/* Get attributes failed and caller expected
* to get the attributes. Otherwise continue
* with attrs_out indicating ATTR_RDATTR_ERR.
*/
goto fileerr;
}
}
} else if (attrs_out != NULL) {
/* Since we haven't set any attributes other than what was set
* on create (if we even created), just use the stat results
* we used to create the fsal_obj_handle.
*/
posix2fsal_attributes(&stat, attrs_out);
/* Make sure ATTR_RDATTR_ERR is cleared on success. */
attrs_out->mask &= ~ATTR_RDATTR_ERR;
}
close(dir_fd);
if (state != NULL) {
/* Prepare to take the share reservation, but only if we are
* called with a valid state (if state is NULL the caller is
* a stateless create such as NFS v3 CREATE).
*/
/* This can block over an I/O operation. */
PTHREAD_RWLOCK_wrlock(&(*new_obj)->lock);
/* Take the share reservation now by updating the counters. */
update_share_counters(&hdl->u.file.share,
FSAL_O_CLOSED,
openflags);
PTHREAD_RWLOCK_unlock(&(*new_obj)->lock);
}
return fsalstat(ERR_FSAL_NO_ERROR, 0);
fileerr:
close(fd);
/* Delete the file if we actually created it. */
if (created)
unlinkat(dir_fd, name, 0);
direrr:
close(dir_fd);
return fsalstat(posix2fsal_error(retval), retval);
}
/**
* @brief Set attributes on an object
*
* This function sets attributes on an object. Which attributes are
* set is determined by attrib_set->mask. The FSAL must manage bypass
* or not of share reservations, and a state may be passed.
*
* @param[in] obj_hdl File on which to operate
* @param[in] state state_t to use for this operation
* @param[in] attrib_set Attributes to set
*
* @return FSAL status.
*/
fsal_status_t vfs_setattr2(struct fsal_obj_handle *obj_hdl,
bool bypass,
struct state_t *state,
struct attrlist *attrib_set)
{
struct vfs_fsal_obj_handle *myself;
fsal_status_t status = {0, 0};
int retval = 0;
fsal_openflags_t openflags = FSAL_O_ANY;
bool has_lock = false;
bool need_fsync = false;
bool closefd = false;
int my_fd;
const char *func;
/* apply umask, if mode attribute is to be changed */
if (FSAL_TEST_MASK(attrib_set->mask, ATTR_MODE))
attrib_set->mode &=
~op_ctx->fsal_export->exp_ops.fs_umask(op_ctx->fsal_export);
myself = container_of(obj_hdl, struct vfs_fsal_obj_handle, obj_handle);
if (obj_hdl->fsal != obj_hdl->fs->fsal) {
LogDebug(COMPONENT_FSAL,
"FSAL %s operation for handle belonging to FSAL %s, return EXDEV",
obj_hdl->fsal->name,
obj_hdl->fs->fsal != NULL
? obj_hdl->fs->fsal->name
: "(none)");
return fsalstat(posix2fsal_error(EXDEV), EXDEV);
}
#ifdef ENABLE_VFS_DEBUG_ACL
#ifdef ENABLE_RFC_ACL
if (FSAL_TEST_MASK(attrib_set->mask, ATTR_MODE) &&
!FSAL_TEST_MASK(attrib_set->mask, ATTR_ACL)) {
/* Set ACL from MODE */
struct attrlist attrs;
fsal_prepare_attrs(&attrs, ATTR_ACL);
status = obj_hdl->obj_ops.getattrs(obj_hdl, &attrs);
if (FSAL_IS_ERROR(status))
return status;
status = fsal_mode_to_acl(attrib_set, attrs.acl);
/* Done with the attrs */
fsal_release_attrs(&attrs);
} else {
/* If ATTR_ACL is set, mode needs to be adjusted no matter what.
* See 7530 s 6.4.1.3 */
if (!FSAL_TEST_MASK(attrib_set->mask, ATTR_MODE))
attrib_set->mode = myself->mode;
status = fsal_acl_to_mode(attrib_set);
}
if (FSAL_IS_ERROR(status))
return status;
#endif /* ENABLE_RFC_ACL */
#endif
/* This is yet another "you can't get there from here". If this object
* is a socket (AF_UNIX), an fd on the socket s useless _period_.
* If it is for a symlink, without O_PATH, you will get an ELOOP error
* and (f)chmod doesn't work for a symlink anyway - not that it matters
* because access checking is not done on the symlink but the final
* target.
* AF_UNIX sockets are also ozone material. If the socket is already
* active listeners et al, you can manipulate the mode etc. If it is
* just sitting there as in you made it with a mknod.
* (one of those leaky abstractions...)
* or the listener forgot to unlink it, it is lame duck.
*/
/* Test if size is being set, make sure file is regular and if so,
* require a read/write file descriptor.
*/
if (FSAL_TEST_MASK(attrib_set->mask, ATTR_SIZE)) {
if (obj_hdl->type != REGULAR_FILE) {
LogFullDebug(COMPONENT_FSAL,
"Setting size on non-regular file");
return fsalstat(ERR_FSAL_INVAL, EINVAL);
}
openflags = FSAL_O_RDWR;
}
/* Get a usable file descriptor. Share conflict is only possible if
* size is being set.
*/
status = find_fd(&my_fd, obj_hdl, bypass, state, openflags,
&has_lock, &need_fsync, &closefd, false);
if (FSAL_IS_ERROR(status)) {
if (obj_hdl->type == SYMBOLIC_LINK &&
status.major == ERR_FSAL_PERM) {
/* You cannot open_by_handle (XFS) a symlink and it
* throws an EPERM error for it. open_by_handle_at
* does not throw that error for symlinks so we play a
* game here. Since there is not much we can do with
* symlinks anyway, say that we did it
* but don't actually do anything.
* If you *really* want to tweek things
* like owners, get a modern linux kernel...
*/
status = fsalstat(ERR_FSAL_NO_ERROR, 0);
}
LogFullDebug(COMPONENT_FSAL,
"find_fd status=%s",
fsal_err_txt(status));
goto out;
}
/** TRUNCATE **/
if (FSAL_TEST_MASK(attrib_set->mask, ATTR_SIZE)) {
retval = ftruncate(my_fd, attrib_set->filesize);
if (retval != 0) {
/** @todo FSF: is this still necessary?
*
* XXX ESXi volume creation pattern reliably
* reached this point in the past, however now that we
* only use the already open file descriptor if it is
* open read/write, this may no longer fail.
* If there is some other error from ftruncate, then
* we will needlessly retry, but without more detail
* of the original failure, we can't be sure.
* Fortunately permission checking is done by
* Ganesha before calling here, so we won't get an
* EACCES since this call is done as root. We could
* get EFBIG, EPERM, or EINVAL.
*/
/** @todo FSF: re-open if we really still need this
*/
retval = ftruncate(my_fd, attrib_set->filesize);
if (retval != 0) {
func = "truncate";
goto fileerr;
}
}
}
/** CHMOD **/
if (FSAL_TEST_MASK(attrib_set->mask, ATTR_MODE)) {
/* The POSIX chmod call doesn't affect the symlink object, but
* the entry it points to. So we must ignore it.
*/
if (obj_hdl->type != SYMBOLIC_LINK) {
if (vfs_unopenable_type(obj_hdl->type))
retval = fchmodat(
my_fd,
myself->u.unopenable.name,
fsal2unix_mode(attrib_set->mode),
0);
else
retval = fchmod(
my_fd,
fsal2unix_mode(attrib_set->mode));
if (retval != 0) {
func = "chmod";
goto fileerr;
}
}
}
/** CHOWN **/
if (FSAL_TEST_MASK(attrib_set->mask, ATTR_OWNER | ATTR_GROUP)) {
uid_t user = FSAL_TEST_MASK(attrib_set->mask, ATTR_OWNER)
? (int)attrib_set->owner : -1;
gid_t group = FSAL_TEST_MASK(attrib_set->mask, ATTR_GROUP)
? (int)attrib_set->group : -1;
if (vfs_unopenable_type(obj_hdl->type))
retval = fchownat(my_fd, myself->u.unopenable.name,
user, group, AT_SYMLINK_NOFOLLOW);
else if (obj_hdl->type == SYMBOLIC_LINK)
retval = fchownat(my_fd, "", user, group,
AT_SYMLINK_NOFOLLOW | AT_EMPTY_PATH);
else
retval = fchown(my_fd, user, group);
if (retval) {
func = "chown";
goto fileerr;
}
}
/** UTIME **/
if (FSAL_TEST_MASK(attrib_set->mask, ATTRS_SET_TIME)) {
struct timespec timebuf[2];
if (obj_hdl->type == SYMBOLIC_LINK)
goto out; /* Setting time on symlinks is illegal */
/* Atime */
if (FSAL_TEST_MASK(attrib_set->mask, ATTR_ATIME_SERVER)) {
timebuf[0].tv_sec = 0;
timebuf[0].tv_nsec = UTIME_NOW;
} else if (FSAL_TEST_MASK(attrib_set->mask, ATTR_ATIME)) {
timebuf[0] = attrib_set->atime;
} else {
timebuf[0].tv_sec = 0;
timebuf[0].tv_nsec = UTIME_OMIT;
}
/* Mtime */
if (FSAL_TEST_MASK(attrib_set->mask, ATTR_MTIME_SERVER)) {
timebuf[1].tv_sec = 0;
timebuf[1].tv_nsec = UTIME_NOW;
} else if (FSAL_TEST_MASK(attrib_set->mask, ATTR_MTIME)) {
timebuf[1] = attrib_set->mtime;
} else {
timebuf[1].tv_sec = 0;
timebuf[1].tv_nsec = UTIME_OMIT;
}
if (vfs_unopenable_type(obj_hdl->type))
retval = vfs_utimesat(my_fd, myself->u.unopenable.name,
timebuf, AT_SYMLINK_NOFOLLOW);
else
retval = vfs_utimes(my_fd, timebuf);
if (retval != 0) {
func = "utimes";
goto fileerr;
}
}
/** SUBFSAL **/
if (myself->sub_ops && myself->sub_ops->setattrs) {
status = myself->sub_ops->setattrs(
myself,
my_fd,
attrib_set->mask, attrib_set);
if (FSAL_IS_ERROR(status))
goto out;
}
errno = 0;
fileerr:
retval = errno;
if (retval != 0) {
LogDebug(COMPONENT_FSAL,
"%s returned %s",
func, strerror(retval));
}
status = fsalstat(posix2fsal_error(retval), retval);
out:
if (closefd)
close(my_fd);
if (has_lock)
PTHREAD_RWLOCK_unlock(&obj_hdl->lock);
return status;
}
static fsal_status_t lustre_makedir(struct fsal_obj_handle *dir_hdl,
const char *name, struct attrlist *attrib,
struct fsal_obj_handle **handle)
{
struct lustre_fsal_obj_handle *myself, *hdl;
char dirpath[MAXPATHLEN];
char newpath[MAXPATHLEN];
struct stat stat;
mode_t unix_mode;
fsal_errors_t fsal_error = ERR_FSAL_NO_ERROR;
int rc = 0;
struct lustre_file_handle *fh =
alloca(sizeof(struct lustre_file_handle));
*handle = NULL; /* poison it */
if (!dir_hdl->ops->handle_is(dir_hdl, DIRECTORY)) {
LogCrit(COMPONENT_FSAL,
"Parent handle is not a directory. hdl = 0x%p",
dir_hdl);
return fsalstat(ERR_FSAL_NOTDIR, 0);
}
memset(fh, 0, sizeof(struct lustre_file_handle));
myself =
container_of(dir_hdl, struct lustre_fsal_obj_handle, obj_handle);
unix_mode = fsal2unix_mode(attrib->mode)
& ~op_ctx->fsal_export->ops->fs_umask(op_ctx->fsal_export);
lustre_handle_to_path(dir_hdl->fs->path,
myself->handle, dirpath);
rc = lstat(dirpath, &stat);
if (rc < 0) {
rc = errno;
goto direrr;
}
/* create it with no access because we are root when we do this */
snprintf(newpath, MAXPATHLEN, "%s/%s", dirpath, name);
rc = CRED_WRAP(op_ctx->creds, int, mkdir, newpath, unix_mode);
if (rc < 0) {
rc = errno;
goto direrr;
}
rc =
get_stat_by_handle_at(dir_hdl->fs->path,
myself->handle, name, fh, &stat);
if (rc < 0)
goto fileerr;
/* allocate an obj_handle and fill it up */
hdl = alloc_handle(fh, dir_hdl->fs,
&stat, NULL, NULL, NULL, op_ctx->fsal_export);
if (hdl != NULL) {
*handle = &hdl->obj_handle;
} else {
fsal_error = ERR_FSAL_NOMEM;
goto errout;
}
return fsalstat(ERR_FSAL_NO_ERROR, 0);
direrr:
rc = errno;
fsal_error = posix2fsal_error(rc);
return fsalstat(fsal_error, rc);
fileerr:
fsal_error = posix2fsal_error(rc);
rmdir(newpath); /* remove the evidence on errors */
errout:
return fsalstat(fsal_error, rc);
}
/**
* FSAL_mkdir:
* Create a directory.
*
* \param dir_hdl (input):
* Handle of the parent directory where
* the subdirectory is to be created.
* \param p_context (input):
* Pointer to the name of the directory to be created.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param accessmode (input):
* Mode for the directory to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param p_object_handle (output):
* Pointer to the handle of the created directory.
* \param p_object_attributes (optionnal input/output):
* The attributes of the created directory.
* As input, it defines the attributes that the caller
* wants to retrieve (by positioning flags into this structure)
* and the output is built considering this input
* (it fills the structure according to the flags it contains).
* May be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t PTFSAL_mkdir(struct fsal_obj_handle *dir_hdl, /* IN */
const char *p_dirname, /* IN */
const struct req_op_context *p_context, /* IN */
uint32_t accessmode, /* IN */
ptfsal_handle_t *p_object_handle, /* OUT */
struct attrlist *p_object_attributes)
{ /* IN/OUT */
int rc, errsv;
int setgid_bit = 0;
mode_t unix_mode;
fsal_status_t status;
struct attrlist parent_dir_attrs;
char newPath[PATH_MAX];
struct pt_fsal_obj_handle *pt_hdl;
FSI_TRACE(FSI_INFO, "MKDIR BEGIN-------------------------\n");
/* sanity checks.
* note : object_attributes is optional.
*/
if (!dir_hdl || !p_context || !p_object_handle || !p_dirname)
return fsalstat(ERR_FSAL_FAULT, 0);
pt_hdl = container_of(dir_hdl, struct pt_fsal_obj_handle, obj_handle);
/* convert FSAL mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~p_context->fsal_export->exp_ops.
fs_umask(p_context->fsal_export);
/* get directory metadata */
parent_dir_attrs.mask = p_context->fsal_export->exp_ops.
fs_supported_attrs(p_context->fsal_export);
status =
PTFSAL_getattrs(p_context->fsal_export, p_context, pt_hdl->handle,
&parent_dir_attrs);
if (FSAL_IS_ERROR(status))
return status;
/* Check the user can write in the directory, and check the
* setgid bit on the directory
*/
if (fsal2unix_mode(parent_dir_attrs.mode) & S_ISGID)
setgid_bit = 1;
rc = ptfsal_mkdir(pt_hdl, p_dirname, p_context, unix_mode,
p_object_handle);
errsv = errno;
if (rc)
return fsalstat(posix2fsal_error(errsv), errsv);
if (FSAL_IS_ERROR(status))
return status;
/* the directory has been created */
/* chown the dir to the current user/group */
if (p_context->creds->caller_uid != geteuid()) {
FSI_TRACE(FSI_DEBUG, "MKDIR %d", __LINE__);
/* if the setgid_bit was set on the parent directory, do not
* change the group of the created file, because it's already
* the parentdir's group
*/
if (fsi_get_name_from_handle
(p_context, p_context->fsal_export, pt_hdl->handle,
(char *)newPath, NULL) < 0) {
FSI_TRACE(FSI_DEBUG,
"Failed to get name from handle %s",
(char *)p_object_handle->data.handle.
f_handle);
return fsalstat(posix2fsal_error(errsv), errsv);
}
rc = ptfsal_chown(p_context, p_context->fsal_export, newPath,
p_context->creds->caller_uid,
setgid_bit ? -1 : (int)p_context->creds->
caller_gid);
errsv = errno;
if (rc)
return fsalstat(posix2fsal_error(errsv), errsv);
}
/* retrieve file attributes */
if (p_object_attributes) {
FSI_TRACE(FSI_DEBUG, "MKDIR %d", __LINE__);
status = PTFSAL_getattrs(p_context->fsal_export, p_context,
p_object_handle,
p_object_attributes);
/* on error, we set a special bit in the mask. */
if (FSAL_IS_ERROR(status)) {
FSAL_CLEAR_MASK(p_object_attributes->mask);
FSAL_SET_MASK(p_object_attributes->mask,
ATTR_RDATTR_ERR);
}
}
FSI_TRACE(FSI_INFO, "MKDIR END ------------------\n");
FSI_TRACE(FSI_DEBUG, "MKDIR %d", __LINE__);
/* OK */
return fsalstat(ERR_FSAL_NO_ERROR, 0);
}
/**
* FSAL_mknode:
* Create a special object in the filesystem.
* Not supported upon HPSS.
*
* \return ERR_FSAL_NOTSUPP.
*/
fsal_status_t GPFSFSAL_mknode(fsal_handle_t * parentdir_handle, /* IN */
fsal_name_t * p_node_name, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_nodetype_t nodetype, /* IN */
fsal_dev_t * dev, /* IN */
fsal_handle_t * p_object_handle, /* OUT (handle to the created node) */
fsal_attrib_list_t * node_attributes /* [ IN/OUT ] */
)
{
int rc, errsv;
int setgid_bit = 0;
fsal_status_t status;
int fd, newfd;
mode_t unix_mode = 0;
dev_t unix_dev = 0;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t parent_dir_attrs;
/* sanity checks.
* note : link_attributes is optional.
*/
if(!parentdir_handle || !p_context || !p_node_name)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
switch (nodetype)
{
case FSAL_TYPE_BLK:
if(!dev)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode |= S_IFBLK;
unix_dev = (dev->major << 8) | (dev->minor & 0xFF);
break;
case FSAL_TYPE_CHR:
if(!dev)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode |= S_IFCHR;
unix_dev = (dev->major << 8) | (dev->minor & 0xFF);
break;
case FSAL_TYPE_SOCK:
unix_mode |= S_IFSOCK;
break;
case FSAL_TYPE_FIFO:
unix_mode |= S_IFIFO;
break;
default:
LogMajor(COMPONENT_FSAL,
"Invalid node type in FSAL_mknode: %d", nodetype);
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_mknode);
}
/* build the directory path */
status =
fsal_internal_handle2fd(p_context, parentdir_handle, &fd, O_RDONLY | O_DIRECTORY);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mknode);
/* retrieve directory attributes */
parent_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(parentdir_handle, p_context, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mknode);
/* Check the user can write in the directory, and check weither the setgid bit on the directory */
if(fsal2unix_mode(parent_dir_attrs.mode) & S_ISGID)
setgid_bit = 1;
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_FILE);
status = fsal_internal_testAccess(p_context, access_mask, NULL, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mknode);
/* creates the node, then stats it */
rc = mknodat(fd, p_node_name->name, unix_mode, unix_dev);
errsv = errno;
if(rc)
{
close(fd);
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mknode);
}
/* WARNING:
* After creating the new node, the node name could have been changed.
* This is a race condition. However only root creates new nodes. This
* is an unlikely race condition, but hopefully can be fixed someday.
*/
if(FSAL_IS_ERROR(status = fsal_internal_get_handle_at(fd, p_node_name,
p_object_handle)))
{
close(fd);
ReturnStatus(status, INDEX_FSAL_mknode);
}
if(FSAL_IS_ERROR(status = fsal_internal_handle2fd_at(fd,
p_object_handle, &newfd,
O_RDONLY | O_NOFOLLOW)))
{
close(fd);
ReturnStatus(status, INDEX_FSAL_mknode);
}
/* the node has been created */
/* chown the file to the current user/group */
if(p_context->credential.user != geteuid())
{
/* if the setgid_bit was set on the parent directory, do not change the group of the created file, because it's already the parentdir's group */
rc = fchown(newfd, p_context->credential.user,
setgid_bit ? -1 : (int)p_context->credential.group);
errsv = errno;
if(rc)
{
close(fd);
close(newfd);
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mknode);
}
}
close(fd);
close(newfd);
/* Fills the attributes if needed */
if(node_attributes)
{
status = GPFSFSAL_getattrs(p_object_handle, p_context, node_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(node_attributes->asked_attributes);
FSAL_SET_MASK(node_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* Finished */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_mknode);
}
/**
* FSAL_create:
* Create a regular file.
*
* \param parent_directory_handle (input):
* Handle of the parent directory where the file is to be created.
* \param p_filename (input):
* Pointer to the name of the file to be created.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param accessmode (input):
* Mode for the file to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param object_handle (output):
* Pointer to the handle of the created file.
* \param object_attributes (optional input/output):
* The attributes of the created file.
* As input, it defines the attributes that the caller
* wants to retrieve (by positioning flags into this structure)
* and the output is built considering this input
* (it fills the structure according to the flags it contains).
* May be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occurred.
*/
fsal_status_t POSIXFSAL_create(fsal_handle_t * parent_directory_handle, /* IN */
fsal_name_t * p_filename, /* IN */
fsal_op_context_t * context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_handle_t * object_handle, /* OUT */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
posixfsal_handle_t * p_parent_directory_handle
= (posixfsal_handle_t *) parent_directory_handle;
posixfsal_op_context_t * p_context = (posixfsal_op_context_t *) context;
posixfsal_handle_t * p_object_handle = (posixfsal_handle_t *) p_object_handle;
int rc, fd, errsv;
int setgid_bit = 0;
fsal_status_t status;
fsal_path_t fsalpath;
struct stat buffstat;
fsal_posixdb_fileinfo_t info;
mode_t unix_mode;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!p_parent_directory_handle || !p_context || !p_object_handle || !p_filename)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_create);
/* convert fsal mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
LogFullDebug(COMPONENT_FSAL, "Creation mode: 0%o", accessmode);
/* build the destination path */
status =
fsal_internal_getPathFromHandle(p_context, p_parent_directory_handle, 1, &fsalpath,
&buffstat);
if(FSAL_IS_ERROR(status))
Return(status.major, status.minor, INDEX_FSAL_create);
/* Check the user can write in the directory, and check the setgid bit on the directory */
if(buffstat.st_mode & S_ISGID)
setgid_bit = 1;
status = fsal_internal_testAccess(p_context, FSAL_W_OK | FSAL_X_OK, &buffstat, NULL);
if(FSAL_IS_ERROR(status))
Return(status.major, status.minor, INDEX_FSAL_create);
status = fsal_internal_appendFSALNameToFSALPath(&fsalpath, p_filename);
if(FSAL_IS_ERROR(status))
Return(status.major, status.minor, INDEX_FSAL_create);
/* call to API */
TakeTokenFSCall();
/* create the file */
fd = open(fsalpath.path, O_CREAT | O_WRONLY | O_TRUNC | O_EXCL, unix_mode); /* error if the file already exists */
errsv = errno;
if(fd == -1)
goto releaseToken;
/* close the file descriptor */
rc = close(fd);
errsv = errno;
if(rc)
goto releaseToken;
/* stat the new file */
rc = lstat(fsalpath.path, &buffstat);
errsv = errno;
releaseToken:
ReleaseTokenFSCall();
if(fd == -1 || rc)
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_create);
/* add the file to the database */
if(FSAL_IS_ERROR(status = fsal_internal_posix2posixdb_fileinfo(&buffstat, &info)))
Return(status.major, status.minor, INDEX_FSAL_create);
if(FSAL_IS_ERROR
(status =
fsal_internal_posixdb_add_entry(p_context->p_conn, p_filename, &info,
p_parent_directory_handle, p_object_handle)))
Return(status.major, status.minor, INDEX_FSAL_create);
/* the file has been created */
/* chown the file to the current user */
if(p_context->credential.user != geteuid())
{
TakeTokenFSCall();
/* if the setgid_bit was set on the parent directory,
* do not change the group of the created file,
* because it's already the parentdir's group */
rc = lchown(fsalpath.path, p_context->credential.user,
setgid_bit ? -1 : (int)p_context->credential.group);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_create);
buffstat.st_uid = p_context->credential.user;
buffstat.st_gid = p_context->credential.group;
}
/* add the file to the database */
if(p_object_attributes)
{
/* convert POSIX attributes to fsal attributes */
status = posix2fsal_attributes(&buffstat, p_object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_create);
}
/**
* @brief Create a special object in the filesystem.
*
* @param dir_hdl Handle of the parent dir where the file is to be created.
* @param node_name Pointer to the name of the file to be created.
* @param op_ctx Authentication context for the operation (user,...).
* @param accessmode Mode for the file to be created.
* @param node_type Type of file to create.
* @param dev Device id of file to create.
* @param gpfs_fh Pointer to the handle of the created file.
* @param fsal_attr Attributes of the created file.
* @return ERR_FSAL_NO_ERROR on success, error otherwise
*
*/
fsal_status_t
GPFSFSAL_mknode(struct fsal_obj_handle *dir_hdl, const char *node_name,
const struct req_op_context *op_ctx, uint32_t accessmode,
mode_t nodetype, fsal_dev_t *dev,
struct gpfs_file_handle *gpfs_fh, struct attrlist *fsal_attr)
{
fsal_status_t status;
mode_t unix_mode = 0;
dev_t unix_dev = 0;
/* note : fsal_attr is optional. */
if (!dir_hdl || !op_ctx || !node_name)
return fsalstat(ERR_FSAL_FAULT, 0);
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~op_ctx->fsal_export->exp_ops.
fs_umask(op_ctx->fsal_export);
switch (nodetype) {
case BLOCK_FILE:
if (!dev)
return fsalstat(ERR_FSAL_FAULT, 0);
unix_mode |= S_IFBLK;
unix_dev = (dev->major << 20) | (dev->minor & 0xFFFFF);
break;
case CHARACTER_FILE:
if (!dev)
return fsalstat(ERR_FSAL_FAULT, 0);
unix_mode |= S_IFCHR;
unix_dev = (dev->major << 20) | (dev->minor & 0xFFFFF);
break;
case SOCKET_FILE:
unix_mode |= S_IFSOCK;
break;
case FIFO_FILE:
unix_mode |= S_IFIFO;
break;
default:
LogMajor(COMPONENT_FSAL, "Invalid node type in FSAL_mknode: %d",
nodetype);
return fsalstat(ERR_FSAL_INVAL, 0);
}
fsal_set_credentials(op_ctx->creds);
status = fsal_internal_mknode(dir_hdl, node_name, unix_mode, unix_dev,
gpfs_fh, NULL);
fsal_restore_ganesha_credentials();
if (FSAL_IS_ERROR(status))
return status;
/* Fills the attributes */
return GPFSFSAL_getattrs(op_ctx->fsal_export,
dir_hdl->fs->private_data,
op_ctx, gpfs_fh, fsal_attr);
}
/**
* FSAL_mknode:
* Create a special object in the filesystem.
* Not supported upon HPSS.
*
* \return ERR_FSAL_NOTSUPP.
*/
fsal_status_t GPFSFSAL_mknode(fsal_handle_t * parentdir_handle, /* IN */
fsal_name_t * p_node_name, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_nodetype_t nodetype, /* IN */
fsal_dev_t * dev, /* IN */
fsal_handle_t * p_object_handle, /* OUT (handle to the created node) */
fsal_attrib_list_t * node_attributes /* [ IN/OUT ] */
)
{
fsal_status_t status;
/* int flags=(O_RDONLY|O_NOFOLLOW); */
mode_t unix_mode = 0;
dev_t unix_dev = 0;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t parent_dir_attrs;
/* sanity checks.
* note : link_attributes is optional.
*/
if(!parentdir_handle || !p_context || !p_node_name)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
switch (nodetype)
{
case FSAL_TYPE_BLK:
if(!dev)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode |= S_IFBLK;
unix_dev = (dev->major << 8) | (dev->minor & 0xFF);
break;
case FSAL_TYPE_CHR:
if(!dev)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode |= S_IFCHR;
unix_dev = (dev->major << 8) | (dev->minor & 0xFF);
break;
case FSAL_TYPE_SOCK:
unix_mode |= S_IFSOCK;
break;
case FSAL_TYPE_FIFO:
unix_mode |= S_IFIFO;
/* flags = (O_RDONLY | O_NOFOLLOW | O_NONBLOCK); */
break;
default:
LogMajor(COMPONENT_FSAL,
"Invalid node type in FSAL_mknode: %d", nodetype);
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_mknode);
}
/* retrieve directory attributes */
parent_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(parentdir_handle, p_context, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mknode);
/* Check the user can write in the directory */
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_FILE);
if(!p_context->export_context->fe_static_fs_info->accesscheck_support)
status = fsal_internal_testAccess(p_context, access_mask, NULL, &parent_dir_attrs);
else
status = fsal_internal_access(p_context, parentdir_handle, access_mask,
&parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mknode);
fsal_set_credentials(p_context);
TakeTokenFSCall();
status = fsal_internal_create(p_context, parentdir_handle,
p_node_name, unix_mode, unix_dev,
p_object_handle, NULL);
ReleaseTokenFSCall();
fsal_restore_ganesha_credentials();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mknode);
/* Fills the attributes if needed */
if(node_attributes)
{
status = GPFSFSAL_getattrs(p_object_handle, p_context, node_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(node_attributes->asked_attributes);
FSAL_SET_MASK(node_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* Finished */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_mknode);
}
/**
* FSAL_create:
* Create a regular file.
*
* \param parent_directory_handle (input):
* Handle of the parent directory where the file is to be created.
* \param p_filename (input):
* Pointer to the name of the file to be created.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param accessmode (input):
* Mode for the file to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param object_handle (output):
* Pointer to the handle of the created file.
* \param object_attributes (optional input/output):
* The attributes of the created file.
* As input, it defines the attributes that the caller
* wants to retrieve (by positioning flags into this structure)
* and the output is built considering this input
* (it fills the structure according to the flags it contains).
* May be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occurred.
*/
fsal_status_t
PTFSAL_create(fsal_handle_t * p_parent_directory_handle, /* IN */
fsal_name_t * p_filename, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_handle_t * p_object_handle, /* OUT */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */)
{
int errsv;
int setgid_bit = 0;
fsal_status_t status;
mode_t unix_mode;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t parent_dir_attrs;
int open_rc;
ptfsal_handle_t * p_fsi_handle = (ptfsal_handle_t *)p_object_handle;
FSI_TRACE(FSI_DEBUG, "Begin to create file************************\n");
/* sanity checks.
* note : object_attributes is optional.
*/
if(!p_parent_directory_handle || !p_context || !p_object_handle ||
!p_filename) {
FSI_TRACE(FSI_DEBUG, "BAD Happen!");
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_create);
}
/* convert fsal mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
LogFullDebug(COMPONENT_FSAL, "Creation mode: 0%o", accessmode);
/* retrieve directory metadata */
parent_dir_attrs.asked_attributes = PTFS_SUPPORTED_ATTRIBUTES;
status = PTFSAL_getattrs(p_parent_directory_handle, p_context,
&parent_dir_attrs);
if(FSAL_IS_ERROR(status)) {
ReturnStatus(status, INDEX_FSAL_create);
}
/* Check the user can write in the directory, and check the setgid bit
* on the directory
*/
if(fsal2unix_mode(parent_dir_attrs.mode) & S_ISGID) {
setgid_bit = 1;
}
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_FILE);
if(!p_context->export_context->fe_static_fs_info->accesscheck_support) {
status = fsal_internal_testAccess(p_context, access_mask, NULL,
&parent_dir_attrs);
} else {
status = fsal_internal_access(p_context,
p_parent_directory_handle,
access_mask,
&parent_dir_attrs);
}
if(FSAL_IS_ERROR(status)) {
ReturnStatus(status, INDEX_FSAL_create);
}
// Create the file, return handle
open_rc = ptfsal_open(p_parent_directory_handle,
p_filename, p_context, unix_mode, p_object_handle);
if (open_rc < 0) {
errsv = errno;
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_create);
}
FSI_TRACE(FSI_DEBUG, "New Handle = %s",
(char *)p_fsi_handle->data.handle.f_handle);
/* retrieve file attributes */
if(p_object_attributes) {
status = PTFSAL_getattrs(p_object_handle,
p_context,
p_object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status)) {
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes,
FSAL_ATTR_RDATTR_ERR);
}
}
FSI_TRACE(FSI_DEBUG, "End to create file************************\n");
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_create);
}
/**
* FSAL_mkdir:
* Create a directory.
*
* \param parent_directory_handle (input):
* Handle of the parent directory where
* the subdirectory is to be created.
* \param p_dirname (input):
* Pointer to the name of the directory to be created.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param accessmode (input):
* Mode for the directory to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param object_handle (output):
* Pointer to the handle of the created directory.
* \param object_attributes (optionnal input/output):
* The attributes of the created directory.
* As input, it defines the attributes that the caller
* wants to retrieve (by positioning flags into this structure)
* and the output is built considering this input
* (it fills the structure according to the flags it contains).
* May be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t
PTFSAL_mkdir(fsal_handle_t * p_parent_directory_handle, /* IN */
fsal_name_t * p_dirname, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_handle_t * p_object_handle, /* OUT */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */)
{
int rc, errsv;
int setgid_bit = 0;
mode_t unix_mode;
fsal_status_t status;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t parent_dir_attrs;
char newPath[PATH_MAX];
FSI_TRACE(FSI_INFO,"MKDIR BEGIN-------------------------\n");
/* sanity checks.
* note : object_attributes is optional.
*/
if(!p_parent_directory_handle || !p_context || !p_object_handle ||
!p_dirname) {
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mkdir);
}
/* convert FSAL mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
/* get directory metadata */
parent_dir_attrs.asked_attributes = PTFS_SUPPORTED_ATTRIBUTES;
status = PTFSAL_getattrs(p_parent_directory_handle, p_context,
&parent_dir_attrs);
if(FSAL_IS_ERROR(status)) {
ReturnStatus(status, INDEX_FSAL_create);
}
/* Check the user can write in the directory, and check the
* setgid bit on the directory
*/
if(fsal2unix_mode(parent_dir_attrs.mode) & S_ISGID) {
setgid_bit = 1;
}
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_SUBDIRECTORY);
if(!p_context->export_context->fe_static_fs_info->accesscheck_support) {
status = fsal_internal_testAccess(p_context, access_mask, NULL,
&parent_dir_attrs);
} else {
status = fsal_internal_access(p_context, p_parent_directory_handle,
access_mask,
&parent_dir_attrs);
}
if(FSAL_IS_ERROR(status)) {
ReturnStatus(status, INDEX_FSAL_mkdir);
}
rc = ptfsal_mkdir(p_parent_directory_handle, p_dirname,
p_context, unix_mode, p_object_handle);
errsv = errno;
if(rc) {
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mkdir);
}
if(FSAL_IS_ERROR(status)) {
ReturnStatus(status, INDEX_FSAL_mkdir);
}
/* the directory has been created */
/* chown the dir to the current user/group */
if(p_context->credential.user != geteuid()) {
FSI_TRACE(FSI_DEBUG, "MKDIR %d",__LINE__);
/* if the setgid_bit was set on the parent directory, do not change
* the group of the created file, because it's already the parentdir's
* group
*/
if(fsi_get_name_from_handle(
p_context,
(char *)p_object_handle->data.handle.f_handle,
(char *)newPath, NULL) < 0) {
FSI_TRACE(FSI_DEBUG, "Failed to get name from handle %s",
(char *)p_object_handle->data.handle.f_handle);
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mkdir);
}
rc = ptfsal_chown(p_context, newPath,
p_context->credential.user,
setgid_bit ? -1 : (int)p_context->credential.group);
errsv = errno;
if(rc) {
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mkdir);
}
}
/* retrieve file attributes */
if(p_object_attributes) {
FSI_TRACE(FSI_DEBUG, "MKDIR %d",__LINE__);
status = PTFSAL_getattrs(p_object_handle, p_context,
p_object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status)) {
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes,
FSAL_ATTR_RDATTR_ERR);
}
}
FSI_TRACE(FSI_INFO,"MKDIR END ------------------\n");
FSI_TRACE(FSI_DEBUG, "MKDIR %d",__LINE__);
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_mkdir);
}
/**
* FSAL_create:
* Create a regular file.
*
* \param parent_directory_handle (input):
* Handle of the parent directory where the file is to be created.
* \param p_filename (input):
* Pointer to the name of the file to be created.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param accessmode (input):
* Mode for the file to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param object_handle (output):
* Pointer to the handle of the created file.
* \param object_attributes (optional input/output):
* The attributes of the created file.
* As input, it defines the attributes that the caller
* wants to retrieve (by positioning flags into this structure)
* and the output is built considering this input
* (it fills the structure according to the flags it contains).
* May be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occurred.
*/
fsal_status_t XFSFSAL_create(fsal_handle_t * p_parent_directory_handle, /* IN */
fsal_name_t * p_filename, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_handle_t * p_object_handle, /* OUT */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
int rc, errsv;
int setgid_bit = 0;
fsal_status_t status;
int fd, newfd;
struct stat buffstat;
mode_t unix_mode;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!p_parent_directory_handle || !p_context || !p_object_handle || !p_filename)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_create);
/* convert fsal mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
LogFullDebug(COMPONENT_FSAL, "Creation mode: 0%o", accessmode);
TakeTokenFSCall();
status =
fsal_internal_handle2fd(p_context, p_parent_directory_handle, &fd, O_DIRECTORY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_create);
/* retrieve directory metadata */
TakeTokenFSCall();
rc = fstat(fd, &buffstat);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
{
close(fd);
if(errsv == ENOENT)
Return(ERR_FSAL_STALE, errsv, INDEX_FSAL_create);
else
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_create);
}
/* Check the user can write in the directory, and check the setgid bit on the directory */
if(buffstat.st_mode & S_ISGID)
setgid_bit = 1;
status = fsal_internal_testAccess(p_context, FSAL_W_OK | FSAL_X_OK, &buffstat, NULL);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_create);
/* call to filesystem */
TakeTokenFSCall();
/* create the file.
* O_EXCL=> error if the file already exists */
newfd = openat(fd, p_filename->name, O_CREAT | O_WRONLY | O_TRUNC | O_EXCL, unix_mode);
errsv = errno;
if(newfd == -1)
{
close(fd);
ReleaseTokenFSCall();
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_create);
}
/* get the new file handle */
status = fsal_internal_fd2handle(p_context, newfd, p_object_handle);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
{
close(fd);
close(newfd);
ReturnStatus(status, INDEX_FSAL_create);
}
/* the file has been created */
/* chown the file to the current user */
if(((xfsfsal_op_context_t *)p_context)->credential.user != geteuid())
{
TakeTokenFSCall();
/* if the setgid_bit was set on the parent directory, do not change the group of the created file, because it's already the parentdir's group */
rc = fchown(newfd, ((xfsfsal_op_context_t *)p_context)->credential.user,
setgid_bit ? -1 : (int)((xfsfsal_op_context_t *)p_context)->credential.group);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
{
close(fd);
close(newfd);
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_create);
}
}
close(fd);
close(newfd);
/* retrieve file attributes */
if(p_object_attributes)
{
status = XFSFSAL_getattrs(p_object_handle, p_context, p_object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_create);
}
/**
* FSAL_mknode:
* Create a special object in the filesystem.
* Not supported upon HPSS.
*
* \return ERR_FSAL_NOTSUPP.
*/
fsal_status_t XFSFSAL_mknode(fsal_handle_t * parentdir_handle, /* IN */
fsal_name_t * p_node_name, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_nodetype_t nodetype, /* IN */
fsal_dev_t * dev, /* IN */
fsal_handle_t * p_object_handle, /* OUT (handle to the created node) */
fsal_attrib_list_t * node_attributes /* [ IN/OUT ] */
)
{
int rc, errsv;
int setgid_bit = 0;
struct stat buffstat;
fsal_status_t status;
int fd, newfd;
mode_t unix_mode = 0;
dev_t unix_dev = 0;
/* sanity checks.
* note : link_attributes is optional.
*/
if(!parentdir_handle || !p_context || !p_node_name)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
switch (nodetype)
{
case FSAL_TYPE_BLK:
if(!dev)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode |= S_IFBLK;
unix_dev = (dev->major << 8) | (dev->minor & 0xFF);
break;
case FSAL_TYPE_CHR:
if(!dev)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode |= S_IFCHR;
unix_dev = (dev->major << 8) | (dev->minor & 0xFF);
break;
case FSAL_TYPE_SOCK:
unix_mode |= S_IFSOCK;
break;
case FSAL_TYPE_FIFO:
unix_mode |= S_IFIFO;
break;
default:
LogMajor(COMPONENT_FSAL, "Invalid node type in FSAL_mknode: %d",
nodetype);
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_mknode);
}
/* build the directory path */
TakeTokenFSCall();
status = fsal_internal_handle2fd(p_context, parentdir_handle, &fd, O_DIRECTORY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mknode);
/* retrieve directory attributes */
TakeTokenFSCall();
rc = fstat(fd, &buffstat);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
{
close(fd);
if(errsv == ENOENT)
Return(ERR_FSAL_STALE, errsv, INDEX_FSAL_mknode);
else
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mknode);
}
/* Check the user can write in the directory, and check weither the setgid bit on the directory */
if(buffstat.st_mode & S_ISGID)
setgid_bit = 1;
status = fsal_internal_testAccess(p_context, FSAL_W_OK | FSAL_X_OK, &buffstat, NULL);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mknode);
/* creates the node, then stats it */
TakeTokenFSCall();
rc = mknodat(fd, p_node_name->name, unix_mode, unix_dev);
errsv = errno;
if(rc)
{
close(fd);
ReleaseTokenFSCall();
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mknode);
}
/* get the new object handle */
if((newfd = openat(fd, p_node_name->name, O_RDONLY, 0600)) < 0)
{
errsv = errno;
close(fd);
ReleaseTokenFSCall();
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mkdir);
}
status = fsal_internal_fd2handle(p_context, newfd, p_object_handle);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
{
close(fd);
close(newfd);
ReturnStatus(status, INDEX_FSAL_mknode);
}
/* the node has been created */
/* chown the file to the current user/group */
if(((xfsfsal_op_context_t *)p_context)->credential.user != geteuid())
{
TakeTokenFSCall();
/* if the setgid_bit was set on the parent directory, do not change the group of the created file, because it's already the parentdir's group */
rc = fchown(newfd, ((xfsfsal_op_context_t *)p_context)->credential.user,
setgid_bit ? -1 : (int)((xfsfsal_op_context_t *)p_context)->credential.group);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
{
close(fd);
close(newfd);
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mknode);
}
}
close(fd);
close(newfd);
/* Fills the attributes if needed */
if(node_attributes)
{
status = XFSFSAL_getattrs(p_object_handle, p_context, node_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(node_attributes->asked_attributes);
FSAL_SET_MASK(node_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* Finished */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_mknode);
}
static fsal_status_t lustre_makenode(struct fsal_obj_handle *dir_hdl,
const char *name,
object_file_type_t nodetype, /* IN */
fsal_dev_t *dev, /* IN */
struct attrlist *attrib,
struct fsal_obj_handle **handle)
{
struct lustre_fsal_obj_handle *myself, *hdl;
char dirpath[MAXPATHLEN];
char newpath[MAXPATHLEN];
struct stat stat;
mode_t unix_mode;
fsal_errors_t fsal_error = ERR_FSAL_NO_ERROR;
int rc = 0;
dev_t unix_dev = 0;
struct lustre_file_handle *dir_fh = NULL;
const char *sock_name = NULL;
struct lustre_file_handle *fh =
alloca(sizeof(struct lustre_file_handle));
*handle = NULL; /* poison it */
if (!dir_hdl->ops->handle_is(dir_hdl, DIRECTORY)) {
LogCrit(COMPONENT_FSAL,
"Parent handle is not a directory. hdl = 0x%p",
dir_hdl);
return fsalstat(ERR_FSAL_NOTDIR, 0);
}
memset(fh, 0, sizeof(struct lustre_file_handle));
myself =
container_of(dir_hdl, struct lustre_fsal_obj_handle, obj_handle);
unix_mode = fsal2unix_mode(attrib->mode)
& ~op_ctx->fsal_export->ops->fs_umask(op_ctx->fsal_export);
switch (nodetype) {
case BLOCK_FILE:
if (!dev) {
fsal_error = ERR_FSAL_FAULT;
goto errout;
}
unix_dev =
CRED_WRAP(op_ctx->creds, dev_t, makedev, dev->major,
dev->minor);
break;
case CHARACTER_FILE:
if (!dev) {
fsal_error = ERR_FSAL_FAULT;
goto errout;
}
unix_dev =
CRED_WRAP(op_ctx->creds, dev_t, makedev, dev->major,
dev->minor);
break;
case FIFO_FILE:
break;
case SOCKET_FILE:
dir_fh = myself->handle;
sock_name = name;
break;
default:
LogMajor(COMPONENT_FSAL, "Invalid node type in FSAL_mknode: %d",
nodetype);
fsal_error = ERR_FSAL_INVAL;
goto errout;
}
lustre_handle_to_path(dir_hdl->fs->path,
myself->handle, dirpath);
rc = lstat(dirpath, &stat);
if (rc < 0) {
rc = errno;
goto errout;
}
/* create it with no access because we are root when we do this */
snprintf(newpath, MAXPATHLEN, "%s/%s", dirpath, name);
rc =
CRED_WRAP(op_ctx->creds, int, mknod, newpath, unix_mode, unix_dev);
if (rc < 0) {
rc = errno;
goto direrr;
}
rc =
get_stat_by_handle_at(dir_hdl->fs->path,
myself->handle, name, fh, &stat);
if (rc < 0)
goto direrr;
/* allocate an obj_handle and fill it up */
hdl = alloc_handle(fh, dir_hdl->fs,
&stat, NULL, dir_fh, sock_name,
op_ctx->fsal_export);
if (hdl == NULL) {
fsal_error = ERR_FSAL_NOMEM;
goto unlinkout;
}
*handle = &hdl->obj_handle;
return fsalstat(ERR_FSAL_NO_ERROR, 0);
direrr:
fsal_error = posix2fsal_error(rc);
unlinkout:
unlink(newpath);
errout:
return fsalstat(fsal_error, rc);
}
/**
* GPFSFSAL_setattrs:
* Set attributes for the object specified by its filehandle.
*
* \param filehandle (input):
* The handle of the object to get parameters.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param attrib_set (mandatory input):
* The attributes to be set for the object.
* It defines the attributes that the caller
* wants to set and their values.
* \param object_attributes (optionnal input/output):
* The post operation attributes for the object.
* As input, it defines the attributes that the caller
* wants to retrieve (by positioning flags into this structure)
* and the output is built considering this input
* (it fills the structure according to the flags it contains).
* May be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t GPFSFSAL_setattrs(fsal_handle_t * p_filehandle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_attrib_list_t * p_attrib_set, /* IN */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
unsigned int i;
fsal_status_t status;
/* Buffer that will be passed to gpfs_ganesha API. */
gpfsfsal_xstat_t buffxstat;
/* Indicate if stat or acl or both should be changed. */
int attr_valid = 0;
/* Indiate which attribute in stat should be changed. */
int attr_changed = 0;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t wanted_attrs, current_attrs;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!p_filehandle || !p_context || !p_attrib_set)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_setattrs);
/* local copy of attributes */
wanted_attrs = *p_attrib_set;
/* It does not make sense to setattr on a symlink */
/* if(p_filehandle->type == DT_LNK)
return fsal_internal_setattrs_symlink(p_filehandle, p_context, p_attrib_set,
p_object_attributes);
*/
/* First, check that FSAL attributes changes are allowed. */
/* Is it allowed to change times ? */
if(!global_fs_info.cansettime)
{
if(wanted_attrs.asked_attributes
& (FSAL_ATTR_ATIME | FSAL_ATTR_CREATION | FSAL_ATTR_CTIME | FSAL_ATTR_MTIME))
{
/* handled as an unsettable attribute. */
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_setattrs);
}
}
/* apply umask, if mode attribute is to be changed */
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_MODE))
{
wanted_attrs.mode &= (~global_fs_info.umask);
}
/* get current attributes */
current_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_filehandle, p_context, ¤t_attrs);
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
ReturnStatus(status, INDEX_FSAL_setattrs);
}
/***********
* CHMOD *
***********/
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_MODE))
{
/* The POSIX chmod call don't affect the symlink object, but
* the entry it points to. So we must ignore it.
*/
if(current_attrs.type != FSAL_TYPE_LNK)
{
#ifdef _USE_NFS4_ACL
if(current_attrs.acl)
{
/* Check permission using ACL. */
access_mask = FSAL_MODE_MASK_SET(0) | /* Dummy. */
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_WRITE_ATTR);
status = fsal_internal_testAccess(p_context, access_mask, NULL, ¤t_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_setattrs);
}
else
{
#endif
/* For modifying mode, user must be root or the owner */
if((p_context->credential.user != 0)
&& (p_context->credential.user != current_attrs.owner))
{
LogFullDebug(COMPONENT_FSAL,
"Permission denied for CHMOD opeartion: current owner=%d, credential=%d",
current_attrs.owner, p_context->credential.user);
Return(ERR_FSAL_PERM, 0, INDEX_FSAL_setattrs);
}
#ifdef _USE_NFS4_ACL
}
#endif
attr_valid |= XATTR_STAT;
attr_changed |= XATTR_MODE;
/* Fill wanted mode. */
buffxstat.buffstat.st_mode = fsal2unix_mode(wanted_attrs.mode);
LogDebug(COMPONENT_FSAL,
"current mode = %o, new mode = %o",
fsal2unix_mode(current_attrs.mode), buffxstat.buffstat.st_mode);
}
}
/***********
* CHOWN *
***********/
/* Only root can change uid and A normal user must be in the group he wants to set */
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_OWNER))
{
#ifdef _USE_NFS4_ACL
if(current_attrs.acl)
{
/* Check permission using ACL. */
access_mask = FSAL_MODE_MASK_SET(0) | /* Dummy. */
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_WRITE_OWNER);
status = fsal_internal_testAccess(p_context, access_mask, NULL, ¤t_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_setattrs);
}
else
{
#endif
/* For modifying owner, user must be root or current owner==wanted==client */
if((p_context->credential.user != 0) &&
((p_context->credential.user != current_attrs.owner) ||
(p_context->credential.user != wanted_attrs.owner)))
{
LogFullDebug(COMPONENT_FSAL,
"Permission denied for CHOWN opeartion: current owner=%d, credential=%d, new owner=%d",
current_attrs.owner, p_context->credential.user, wanted_attrs.owner);
Return(ERR_FSAL_PERM, 0, INDEX_FSAL_setattrs);
}
#ifdef _USE_NFS4_ACL
}
#endif
}
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_GROUP))
{
#ifdef _USE_NFS4_ACL
if(current_attrs.acl)
{
/* Check permission using ACL. */
access_mask = FSAL_MODE_MASK_SET(0) | /* Dummy. */
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_WRITE_OWNER);
status = fsal_internal_testAccess(p_context, access_mask, NULL, ¤t_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_setattrs);
}
else
{
#endif
/* For modifying group, user must be root or current owner */
if((p_context->credential.user != 0)
&& (p_context->credential.user != current_attrs.owner))
{
Return(ERR_FSAL_PERM, 0, INDEX_FSAL_setattrs);
}
int in_grp = 0;
/* set in_grp */
if(p_context->credential.group == wanted_attrs.group)
in_grp = 1;
else
for(i = 0; i < p_context->credential.nbgroups; i++)
{
if((in_grp = (wanted_attrs.group == p_context->credential.alt_groups[i])))
break;
}
/* it must also be in target group */
if(p_context->credential.user != 0 && !in_grp)
{
LogFullDebug(COMPONENT_FSAL,
"Permission denied for CHOWN operation: current group=%d, credential=%d, new group=%d",
current_attrs.group, p_context->credential.group, wanted_attrs.group);
Return(ERR_FSAL_PERM, 0, INDEX_FSAL_setattrs);
}
#ifdef _USE_NFS4_ACL
}
#endif
}
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_OWNER | FSAL_ATTR_GROUP))
{
/* LogFullDebug(COMPONENT_FSAL, "Performing chown(%s, %d,%d)",
fsalpath.path, FSAL_TEST_MASK(wanted_attrs.asked_attributes,
FSAL_ATTR_OWNER) ? (int)wanted_attrs.owner
: -1, FSAL_TEST_MASK(wanted_attrs.asked_attributes,
FSAL_ATTR_GROUP) ? (int)wanted_attrs.group : -1);*/
attr_valid |= XATTR_STAT;
attr_changed |= FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_OWNER) ?
XATTR_UID : XATTR_GID;
/* Fill wanted owner. */
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_OWNER))
{
buffxstat.buffstat.st_uid = (int)wanted_attrs.owner;
LogDebug(COMPONENT_FSAL,
"current uid = %d, new uid = %d",
current_attrs.owner, buffxstat.buffstat.st_uid);
}
/* Fill wanted group. */
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_GROUP))
{
buffxstat.buffstat.st_gid = (int)wanted_attrs.group;
LogDebug(COMPONENT_FSAL,
"current gid = %d, new gid = %d",
current_attrs.group, buffxstat.buffstat.st_gid);
}
}
/***********
* UTIME *
***********/
/* user must be the owner or have read access to modify 'atime' */
access_mask = FSAL_MODE_MASK_SET(FSAL_R_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_WRITE_ATTR);
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_ATIME)
&& (p_context->credential.user != 0)
&& (p_context->credential.user != current_attrs.owner)
&& ((status = fsal_internal_testAccess(p_context, access_mask, NULL, ¤t_attrs)).major
!= ERR_FSAL_NO_ERROR))
{
ReturnStatus(status, INDEX_FSAL_setattrs);
}
/* user must be the owner or have write access to modify 'mtime' */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_WRITE_ATTR);
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_MTIME)
&& (p_context->credential.user != 0)
&& (p_context->credential.user != current_attrs.owner)
&& ((status = fsal_internal_testAccess(p_context, access_mask, NULL, ¤t_attrs)).major
!= ERR_FSAL_NO_ERROR))
{
ReturnStatus(status, INDEX_FSAL_setattrs);
}
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_ATIME | FSAL_ATTR_MTIME))
{
attr_valid |= XATTR_STAT;
/* Fill wanted atime. */
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_ATIME))
{
attr_changed |= XATTR_ATIME;
buffxstat.buffstat.st_atime = (time_t) wanted_attrs.atime.seconds;
LogDebug(COMPONENT_FSAL,
"current atime = %lu, new atime = %lu",
(unsigned long)current_attrs.atime.seconds, (unsigned long)buffxstat.buffstat.st_atime);
}
/* Fill wanted mtime. */
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_MTIME))
{
attr_changed |= XATTR_CTIME;
buffxstat.buffstat.st_mtime = (time_t) wanted_attrs.mtime.seconds;
LogDebug(COMPONENT_FSAL,
"current mtime = %lu, new mtime = %lu",
(unsigned long)current_attrs.mtime.seconds, (unsigned long)buffxstat.buffstat.st_mtime);
}
}
#ifdef _USE_NFS4_ACL
/***********
* ACL *
***********/
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_ACL))
{
/* Check permission to set ACL. */
access_mask = FSAL_MODE_MASK_SET(0) | /* Dummy */
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_WRITE_ACL);
status = fsal_internal_testAccess(p_context, access_mask, NULL, ¤t_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_setattrs);
if(wanted_attrs.acl)
{
attr_valid |= XATTR_ACL;
LogDebug(COMPONENT_FSAL, "setattr acl = %p", wanted_attrs.acl);
/* Convert FSAL ACL to GPFS NFS4 ACL and fill the buffer. */
status = fsal_acl_2_gpfs_acl(wanted_attrs.acl, &buffxstat);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_setattrs);
}
else
{
LogCrit(COMPONENT_FSAL, "setattr acl is NULL");
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_setattrs);
}
}
#endif /* _USE_NFS4_ACL */
/* If there is any change in stat or acl or both, send it down to file system. */
if((attr_valid == XATTR_STAT && attr_changed !=0) || attr_valid == XATTR_ACL)
{
status = fsal_set_xstat_by_handle(p_context,
p_filehandle,
attr_valid,
attr_changed,
&buffxstat);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_setattrs);
}
/* Optionaly fills output attributes. */
if(p_object_attributes)
{
status = GPFSFSAL_getattrs(p_filehandle, p_context, p_object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_setattrs);
}
/**
* FSAL_mkdir:
* Create a directory.
*
* \param parent_directory_handle (input):
* Handle of the parent directory where
* the subdirectory is to be created.
* \param p_dirname (input):
* Pointer to the name of the directory to be created.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param accessmode (input):
* Mode for the directory to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param object_handle (output):
* Pointer to the handle of the created directory.
* \param object_attributes (optionnal input/output):
* The attributes of the created directory.
* As input, it defines the attributes that the caller
* wants to retrieve (by positioning flags into this structure)
* and the output is built considering this input
* (it fills the structure according to the flags it contains).
* May be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t GPFSFSAL_mkdir(fsal_handle_t * p_parent_directory_handle, /* IN */
fsal_name_t * p_dirname, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_handle_t * p_object_handle, /* OUT */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
/* int setgid_bit = 0; */
mode_t unix_mode;
fsal_status_t status;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t parent_dir_attrs;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!p_parent_directory_handle || !p_context || !p_object_handle || !p_dirname)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mkdir);
/* convert FSAL mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
/* get directory metadata */
parent_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_parent_directory_handle, p_context, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mkdir);
/* Check the user can write in the directory, and check the setgid bit on the directory */
/* if(fsal2unix_mode(parent_dir_attrs.mode) & S_ISGID) */
/* setgid_bit = 1; */
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_SUBDIRECTORY);
if(!p_context->export_context->fe_static_fs_info->accesscheck_support)
status = fsal_internal_testAccess(p_context, access_mask, NULL, &parent_dir_attrs);
else
status = fsal_internal_access(p_context, p_parent_directory_handle, access_mask,
&parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mkdir);
/* build new entry path */
/* creates the directory and get its handle */
fsal_set_credentials(p_context);
TakeTokenFSCall();
status = fsal_internal_create(p_context, p_parent_directory_handle,
p_dirname, unix_mode | S_IFDIR, 0,
p_object_handle, NULL);
ReleaseTokenFSCall();
fsal_restore_ganesha_credentials();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mkdir);
/* retrieve file attributes */
if(p_object_attributes)
{
status = GPFSFSAL_getattrs(p_object_handle, p_context, p_object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_mkdir);
}
/**
* FSAL_mkdir:
* Create a directory.
*
* \param parent_directory_handle (input):
* Handle of the parent directory where
* the subdirectory is to be created.
* \param p_dirname (input):
* Pointer to the name of the directory to be created.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param accessmode (input):
* Mode for the directory to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param object_handle (output):
* Pointer to the handle of the created directory.
* \param object_attributes (optionnal input/output):
* The attributes of the created directory.
* As input, it defines the attributes that the caller
* wants to retrieve (by positioning flags into this structure)
* and the output is built considering this input
* (it fills the structure according to the flags it contains).
* May be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t POSIXFSAL_mkdir(fsal_handle_t * parent_directory_handle, /* IN */
fsal_name_t * p_dirname, /* IN */
fsal_op_context_t * context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_handle_t * object_handle, /* OUT */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
posixfsal_handle_t * p_parent_directory_handle
= (posixfsal_handle_t *) parent_directory_handle;
posixfsal_op_context_t * p_context = (posixfsal_op_context_t *) context;
posixfsal_handle_t * p_object_handle = (posixfsal_handle_t *) object_handle;
int rc, errsv;
int setgid_bit = 0;
struct stat buffstat;
mode_t unix_mode;
fsal_status_t status;
fsal_path_t fsalpath;
fsal_posixdb_fileinfo_t info;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!p_parent_directory_handle || !p_context || !p_object_handle || !p_dirname)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mkdir);
/* convert FSAL mode to HPSS mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
/* build the destination path */
status =
fsal_internal_getPathFromHandle(p_context, p_parent_directory_handle, 1, &fsalpath,
&buffstat);
if(FSAL_IS_ERROR(status))
Return(status.major, status.minor, INDEX_FSAL_mkdir);
/* Check the user can write in the directory, and check the setgid bit on the directory */
if(buffstat.st_mode & S_ISGID)
setgid_bit = 1;
status = fsal_internal_testAccess(p_context, FSAL_W_OK | FSAL_X_OK, &buffstat, NULL);
if(FSAL_IS_ERROR(status))
Return(status.major, status.minor, INDEX_FSAL_mkdir);
status = fsal_internal_appendFSALNameToFSALPath(&fsalpath, p_dirname);
if(FSAL_IS_ERROR(status))
Return(status.major, status.minor, INDEX_FSAL_mkdir);
/* creates the directory and stats it */
TakeTokenFSCall();
rc = mkdir(fsalpath.path, unix_mode);
if(!rc)
rc = lstat(fsalpath.path, &buffstat);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mkdir);
/* add the directory to the database */
if(FSAL_IS_ERROR(status = fsal_internal_posix2posixdb_fileinfo(&buffstat, &info)))
Return(status.major, status.minor, INDEX_FSAL_mkdir);
if(FSAL_IS_ERROR
(status =
fsal_internal_posixdb_add_entry(p_context->p_conn, p_dirname, &info,
p_parent_directory_handle, p_object_handle)))
Return(status.major, status.minor, INDEX_FSAL_mkdir);
/* the directory has been created */
/* chown the file to the current user/group */
if(p_context->credential.user != geteuid())
{
TakeTokenFSCall();
/* if the setgid_bit was set on the parent directory, do not change the group of the created file, because it's already the parentdir's group */
rc = lchown(fsalpath.path, p_context->credential.user,
setgid_bit ? -1 : (int)p_context->credential.group);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mkdir);
buffstat.st_uid = p_context->credential.user;
buffstat.st_gid = p_context->credential.group;
}
/* Fills the attributes if needed */
if(p_object_attributes)
{
status = posix2fsal_attributes(&buffstat, p_object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_mkdir);
}
/**
* FSAL_create:
* Create a regular file.
*
* \param parent_directory_handle (input):
* Handle of the parent directory where the file is to be created.
* \param p_filename (input):
* Pointer to the name of the file to be created.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param accessmode (input):
* Mode for the file to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param object_handle (output):
* Pointer to the handle of the created file.
* \param object_attributes (optional input/output):
* The attributes of the created file.
* As input, it defines the attributes that the caller
* wants to retrieve (by positioning flags into this structure)
* and the output is built considering this input
* (it fills the structure according to the flags it contains).
* May be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occurred.
*/
fsal_status_t GPFSFSAL_create(fsal_handle_t * p_parent_directory_handle, /* IN */
fsal_name_t * p_filename, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_handle_t * p_object_handle, /* OUT */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
fsal_status_t status;
mode_t unix_mode;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t parent_dir_attrs;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!p_parent_directory_handle || !p_context || !p_object_handle || !p_filename)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_create);
/* convert fsal mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
LogFullDebug(COMPONENT_FSAL, "Creation mode: 0%o", accessmode);
/* retrieve directory metadata */
parent_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_parent_directory_handle, p_context, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_create);
/* Check the user can write in the directory */
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_FILE);
if(!p_context->export_context->fe_static_fs_info->accesscheck_support)
status = fsal_internal_testAccess(p_context, access_mask, NULL, &parent_dir_attrs);
else
status = fsal_internal_access(p_context, p_parent_directory_handle, access_mask,
&parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_create);
/* call to filesystem */
fsal_set_credentials(p_context);
TakeTokenFSCall();
status = fsal_internal_create(p_context, p_parent_directory_handle,
p_filename, unix_mode | S_IFREG, 0,
p_object_handle, NULL);
ReleaseTokenFSCall();
fsal_restore_ganesha_credentials();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_create);
/* retrieve file attributes */
if(p_object_attributes)
{
status = GPFSFSAL_getattrs(p_object_handle, p_context, p_object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
// error injection to test DRC
//sleep(61);
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_create);
}
fsal_status_t GPFSFSAL_rename(fsal_handle_t * p_old_parentdir_handle, /* IN */
fsal_name_t * p_old_name, /* IN */
fsal_handle_t * p_new_parentdir_handle, /* IN */
fsal_name_t * p_new_name, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_attrib_list_t * p_src_dir_attributes, /* [ IN/OUT ] */
fsal_attrib_list_t * p_tgt_dir_attributes /* [ IN/OUT ] */
)
{
int rc, errsv;
fsal_status_t status;
struct stat buffstat;
int old_parent_fd, new_parent_fd;
int src_equal_tgt = FALSE;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t src_dir_attrs, tgt_dir_attrs;
/* sanity checks.
* note : src/tgt_dir_attributes are optional.
*/
if(!p_old_parentdir_handle || !p_new_parentdir_handle
|| !p_old_name || !p_new_name || !p_context)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_rename);
/* Get directory access path by fid */
TakeTokenFSCall();
status = fsal_internal_handle2fd(p_context, p_old_parentdir_handle,
&old_parent_fd,
O_RDONLY | O_DIRECTORY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_rename);
/* retrieve directory metadata for checking access rights */
src_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_old_parentdir_handle, p_context, &src_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_rename);
/* optimisation : don't do the job twice if source dir = dest dir */
if(!FSAL_handlecmp(p_old_parentdir_handle, p_new_parentdir_handle, &status))
{
new_parent_fd = old_parent_fd;
src_equal_tgt = TRUE;
tgt_dir_attrs = src_dir_attrs;
}
else
{
TakeTokenFSCall();
status = fsal_internal_handle2fd(p_context, p_new_parentdir_handle,
&new_parent_fd,
O_RDONLY | O_DIRECTORY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
{
close(old_parent_fd);
ReturnStatus(status, INDEX_FSAL_rename);
}
/* retrieve destination attrs */
tgt_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_new_parentdir_handle, p_context, &tgt_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_rename);
}
/* check access rights */
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_DELETE_CHILD);
if(!p_context->export_context->fe_static_fs_info->accesscheck_support)
status = fsal_internal_testAccess(p_context, access_mask, NULL, &src_dir_attrs);
else
status = fsal_internal_access(p_context, p_old_parentdir_handle, access_mask,
&src_dir_attrs);
if(FSAL_IS_ERROR(status)) {
close(old_parent_fd);
if (!src_equal_tgt)
close(new_parent_fd);
ReturnStatus(status, INDEX_FSAL_rename);
}
if(!src_equal_tgt)
{
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_FILE |
FSAL_ACE_PERM_ADD_SUBDIRECTORY);
if(!p_context->export_context->fe_static_fs_info->accesscheck_support)
status = fsal_internal_testAccess(p_context, access_mask, NULL, &tgt_dir_attrs);
else
status = fsal_internal_access(p_context, p_new_parentdir_handle, access_mask,
&tgt_dir_attrs);
if(FSAL_IS_ERROR(status)) {
close(old_parent_fd);
close(new_parent_fd);
ReturnStatus(status, INDEX_FSAL_rename);
}
}
/* build file paths */
TakeTokenFSCall();
rc = fstatat(old_parent_fd, p_old_name->name, &buffstat, AT_SYMLINK_NOFOLLOW);
errsv = errno;
ReleaseTokenFSCall();
if(rc) {
close(old_parent_fd);
if (!src_equal_tgt)
close(new_parent_fd);
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_rename);
}
/* Check sticky bits */
/* Sticky bit on the source directory => the user who wants to delete the file must own it or its parent dir */
if((fsal2unix_mode(src_dir_attrs.mode) & S_ISVTX) &&
src_dir_attrs.owner != p_context->credential.user &&
buffstat.st_uid != p_context->credential.user && p_context->credential.user != 0) {
close(old_parent_fd);
if (!src_equal_tgt)
close(new_parent_fd);
Return(ERR_FSAL_ACCESS, 0, INDEX_FSAL_rename);
}
/* Sticky bit on the target directory => the user who wants to create the file must own it or its parent dir */
if(fsal2unix_mode(tgt_dir_attrs.mode) & S_ISVTX)
{
TakeTokenFSCall();
rc = fstatat(new_parent_fd, p_new_name->name, &buffstat, AT_SYMLINK_NOFOLLOW);
errsv = errno;
ReleaseTokenFSCall();
if(rc < 0)
{
if(errsv != ENOENT)
{
close(old_parent_fd);
if (!src_equal_tgt)
close(new_parent_fd);
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_rename);
}
}
else
{
if(tgt_dir_attrs.owner != p_context->credential.user
&& buffstat.st_uid != p_context->credential.user
&& p_context->credential.user != 0)
{
close(old_parent_fd);
if (!src_equal_tgt)
close(new_parent_fd);
Return(ERR_FSAL_ACCESS, 0, INDEX_FSAL_rename);
}
}
}
/*************************************
* Rename the file on the filesystem *
*************************************/
TakeTokenFSCall();
rc = renameat(old_parent_fd, p_old_name->name, new_parent_fd, p_new_name->name);
errsv = errno;
ReleaseTokenFSCall();
close(old_parent_fd);
if (!src_equal_tgt)
close(new_parent_fd);
if(rc)
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_rename);
/***********************
* Fill the attributes *
***********************/
if(p_src_dir_attributes)
{
status = GPFSFSAL_getattrs(p_old_parentdir_handle, p_context, p_src_dir_attributes);
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_src_dir_attributes->asked_attributes);
FSAL_SET_MASK(p_src_dir_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
if(p_tgt_dir_attributes)
{
status = GPFSFSAL_getattrs(p_new_parentdir_handle, p_context, p_tgt_dir_attributes);
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_tgt_dir_attributes->asked_attributes);
FSAL_SET_MASK(p_tgt_dir_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_rename);
}
/**
* FSAL_mknode:
* Create a special object in the filesystem.
* Not supported upon HPSS.
*
* \return ERR_FSAL_NOTSUPP.
*/
fsal_status_t POSIXFSAL_mknode(fsal_handle_t * parentdir_hdl, /* IN */
fsal_name_t * p_node_name, /* IN */
fsal_op_context_t * context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_nodetype_t nodetype, /* IN */
fsal_dev_t * dev, /* IN */
fsal_handle_t * object_handle, /* OUT (handle to the created node) */
fsal_attrib_list_t * node_attributes /* [ IN/OUT ] */
)
{
posixfsal_handle_t * parentdir_handle = (posixfsal_handle_t *) parentdir_hdl;
posixfsal_op_context_t * p_context = (posixfsal_op_context_t *) context;
posixfsal_handle_t * p_object_handle = (posixfsal_handle_t *) object_handle;
int rc, errsv;
int setgid_bit = 0;
struct stat buffstat;
fsal_status_t status;
fsal_path_t fsalpath;
fsal_posixdb_fileinfo_t info;
mode_t unix_mode = 0;
dev_t unix_dev = 0;
/* sanity checks.
* note : link_attributes is optional.
*/
if(!parentdir_handle || !p_context || !p_node_name)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
switch (nodetype)
{
case FSAL_TYPE_BLK:
if(!dev)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode |= S_IFBLK;
unix_dev = (dev->major << 8) | (dev->minor & 0xFF);
break;
case FSAL_TYPE_CHR:
if(!dev)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode |= S_IFCHR;
unix_dev = (dev->major << 8) | (dev->minor & 0xFF);
break;
case FSAL_TYPE_SOCK:
unix_mode |= S_IFSOCK;
break;
case FSAL_TYPE_FIFO:
unix_mode |= S_IFIFO;
break;
default:
LogMajor(COMPONENT_FSAL, "Invalid node type in FSAL_mknode: %d", nodetype);
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_mknode);
}
/* build the destination path */
status =
fsal_internal_getPathFromHandle(p_context, parentdir_handle, 1, &fsalpath,
&buffstat);
if(FSAL_IS_ERROR(status))
Return(status.major, status.minor, INDEX_FSAL_mknode);
/* Check the user can write in the directory, and check weither the setgid bit on the directory */
if(buffstat.st_mode & S_ISGID)
setgid_bit = 1;
status = fsal_internal_testAccess(p_context, FSAL_W_OK | FSAL_X_OK, &buffstat, NULL);
if(FSAL_IS_ERROR(status))
Return(status.major, status.minor, INDEX_FSAL_mknode);
status = fsal_internal_appendFSALNameToFSALPath(&fsalpath, p_node_name);
if(FSAL_IS_ERROR(status))
Return(status.major, status.minor, INDEX_FSAL_mknode);
/* creates the node, then stats it */
TakeTokenFSCall();
rc = mknod(fsalpath.path, unix_mode, unix_dev);
if(!rc)
rc = lstat(fsalpath.path, &buffstat);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mknode);
/* add the object to the database */
if(FSAL_IS_ERROR(status = fsal_internal_posix2posixdb_fileinfo(&buffstat, &info)))
Return(status.major, status.minor, INDEX_FSAL_mknode);
if(FSAL_IS_ERROR
(status =
fsal_internal_posixdb_add_entry(p_context->p_conn, p_node_name, &info,
parentdir_handle, p_object_handle)))
Return(status.major, status.minor, INDEX_FSAL_mknode);
/* the node has been created */
/* chown the file to the current user/group */
if(p_context->credential.user != geteuid())
{
TakeTokenFSCall();
/* if the setgid_bit was set on the parent directory, do not change the group of the created file, because it's already the parentdir's group */
rc = lchown(fsalpath.path, p_context->credential.user,
setgid_bit ? -1 : (int)p_context->credential.group);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mknode);
buffstat.st_uid = p_context->credential.user;
buffstat.st_gid = p_context->credential.group;
}
/* Fills the attributes if needed */
if(node_attributes)
{
status = posix2fsal_attributes(&buffstat, node_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(node_attributes->asked_attributes);
FSAL_SET_MASK(node_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* Finished */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_mknode);
}
static fsal_status_t makedir(struct fsal_obj_handle *dir_hdl,
const struct req_op_context *opctx,
const char *name, struct attrlist *attrib,
struct fsal_obj_handle **handle)
{
int rc = 0;
fsal_status_t status = { ERR_FSAL_NO_ERROR, 0 };
struct stat sb;
struct glfs_object *glhandle = NULL;
unsigned char globjhdl[GLAPI_HANDLE_LENGTH];
struct glusterfs_handle *objhandle = NULL;
struct glusterfs_export *glfs_export =
container_of(dir_hdl->export, struct glusterfs_export, export);
struct glusterfs_handle *parenthandle =
container_of(dir_hdl, struct glusterfs_handle, handle);
#ifdef GLTIMING
struct timespec s_time, e_time;
now(&s_time);
#endif
rc = setglustercreds(glfs_export, &opctx->creds->caller_uid,
&opctx->creds->caller_gid,
opctx->creds->caller_glen,
opctx->creds->caller_garray);
if (rc != 0) {
status = gluster2fsal_error(EPERM);
LogFatal(COMPONENT_FSAL, "Could not set Ganesha credentials");
goto out;
}
/* FIXME: what else from attrib should we use? */
glhandle =
glfs_h_mkdir(glfs_export->gl_fs, parenthandle->glhandle, name,
fsal2unix_mode(attrib->mode), &sb);
rc = setglustercreds(glfs_export, NULL, NULL, 0, NULL);
if (rc != 0) {
status = gluster2fsal_error(EPERM);
LogFatal(COMPONENT_FSAL, "Could not set Ganesha credentials");
goto out;
}
if (glhandle == NULL) {
status = gluster2fsal_error(errno);
goto out;
}
rc = glfs_h_extract_handle(glhandle, globjhdl, GLAPI_HANDLE_LENGTH);
if (rc < 0) {
status = gluster2fsal_error(errno);
goto out;
}
rc = construct_handle(glfs_export, &sb, glhandle, globjhdl,
GLAPI_HANDLE_LENGTH, &objhandle);
if (rc != 0) {
status = gluster2fsal_error(rc);
goto out;
}
*handle = &objhandle->handle;
*attrib = objhandle->handle.attributes;
out:
if (status.major != ERR_FSAL_NO_ERROR) {
gluster_cleanup_vars(glhandle);
}
#ifdef GLTIMING
now(&e_time);
latency_update(&s_time, &e_time, lat_makedir);
#endif
return status;
}
/**
* FSAL_mkdir:
* Create a directory.
*
* \param parent_directory_handle (input):
* Handle of the parent directory where
* the subdirectory is to be created.
* \param p_dirname (input):
* Pointer to the name of the directory to be created.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param accessmode (input):
* Mode for the directory to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param object_handle (output):
* Pointer to the handle of the created directory.
* \param object_attributes (optionnal input/output):
* The attributes of the created directory.
* As input, it defines the attributes that the caller
* wants to retrieve (by positioning flags into this structure)
* and the output is built considering this input
* (it fills the structure according to the flags it contains).
* May be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t GPFSFSAL_mkdir(fsal_handle_t * p_parent_directory_handle, /* IN */
fsal_name_t * p_dirname, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_handle_t * p_object_handle, /* OUT */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
int rc, errsv;
int setgid_bit = 0;
mode_t unix_mode;
fsal_status_t status;
int fd, newfd;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t parent_dir_attrs;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!p_parent_directory_handle || !p_context || !p_object_handle || !p_dirname)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mkdir);
/* convert FSAL mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
TakeTokenFSCall();
status = fsal_internal_handle2fd(p_context, p_parent_directory_handle, &fd, O_RDONLY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mkdir);
/* get directory metadata */
parent_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_parent_directory_handle, p_context, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_create);
/* Check the user can write in the directory, and check the setgid bit on the directory */
if(fsal2unix_mode(parent_dir_attrs.mode) & S_ISGID)
setgid_bit = 1;
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_SUBDIRECTORY);
status = fsal_internal_testAccess(p_context, access_mask, NULL, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mkdir);
/* build new entry path */
/* creates the directory and get its handle */
TakeTokenFSCall();
rc = mkdirat(fd, p_dirname->name, unix_mode);
errsv = errno;
if(rc)
{
close(fd);
ReleaseTokenFSCall();
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mkdir);
}
ReleaseTokenFSCall();
/****
* There is a race here between mkdir creation and the open, not
* sure there is any way to close it in practice.
*/
/* get the new handle */
TakeTokenFSCall();
status = fsal_internal_get_handle_at(fd, p_dirname, p_object_handle);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
{
close(fd);
ReturnStatus(status, INDEX_FSAL_mkdir);
}
TakeTokenFSCall();
status =
fsal_internal_handle2fd_at(fd, p_object_handle, &newfd, O_RDONLY | O_DIRECTORY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
{
close(fd);
ReturnStatus(status, INDEX_FSAL_mkdir);
}
/* the directory has been created */
/* chown the dir to the current user/group */
if(p_context->credential.user != geteuid())
{
TakeTokenFSCall();
/* if the setgid_bit was set on the parent directory, do not change the group of the created file, because it's already the parentdir's group */
rc = fchown(newfd, p_context->credential.user,
setgid_bit ? -1 : (int)p_context->credential.group);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
{
close(fd);
close(newfd);
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mkdir);
}
}
close(fd);
close(newfd);
/* retrieve file attributes */
if(p_object_attributes)
{
status = GPFSFSAL_getattrs(p_object_handle, p_context, p_object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_mkdir);
}
static fsal_status_t makenode(struct fsal_obj_handle *dir_hdl,
const struct req_op_context *opctx,
const char *name, object_file_type_t nodetype,
fsal_dev_t * dev, struct attrlist *attrib,
struct fsal_obj_handle **handle)
{
int rc = 0;
fsal_status_t status = { ERR_FSAL_NO_ERROR, 0 };
struct stat sb;
struct glfs_object *glhandle = NULL;
unsigned char globjhdl[GLAPI_HANDLE_LENGTH];
struct glusterfs_handle *objhandle = NULL;
dev_t ndev = { 0, };
struct glusterfs_export *glfs_export =
container_of(dir_hdl->export, struct glusterfs_export, export);
struct glusterfs_handle *parenthandle =
container_of(dir_hdl, struct glusterfs_handle, handle);
mode_t create_mode;
#ifdef GLTIMING
struct timespec s_time, e_time;
now(&s_time);
#endif
switch (nodetype) {
case BLOCK_FILE:
if (!dev)
return fsalstat(ERR_FSAL_INVAL, 0);
/* FIXME: This needs a feature flag test? */
ndev = makedev(dev->major, dev->minor);
create_mode = S_IFBLK;
break;
case CHARACTER_FILE:
if (!dev)
return fsalstat(ERR_FSAL_INVAL, 0);
ndev = makedev(dev->major, dev->minor);
create_mode = S_IFCHR;
break;
case FIFO_FILE:
create_mode = S_IFIFO;
break;
case SOCKET_FILE:
create_mode = S_IFSOCK;
break;
default:
LogMajor(COMPONENT_FSAL, "Invalid node type in FSAL_mknode: %d",
nodetype);
return fsalstat(ERR_FSAL_INVAL, 0);
}
rc = setglustercreds(glfs_export, &opctx->creds->caller_uid,
&opctx->creds->caller_gid,
opctx->creds->caller_glen,
opctx->creds->caller_garray);
if (rc != 0) {
status = gluster2fsal_error(EPERM);
LogFatal(COMPONENT_FSAL, "Could not set Ganesha credentials");
goto out;
}
/* FIXME: what else from attrib should we use? */
glhandle =
glfs_h_mknod(glfs_export->gl_fs, parenthandle->glhandle, name,
create_mode | fsal2unix_mode(attrib->mode), ndev, &sb);
rc = setglustercreds(glfs_export, NULL, NULL, 0, NULL);
if (rc != 0) {
status = gluster2fsal_error(EPERM);
LogFatal(COMPONENT_FSAL, "Could not set Ganesha credentials");
goto out;
}
if (glhandle == NULL) {
status = gluster2fsal_error(errno);
goto out;
}
rc = glfs_h_extract_handle(glhandle, globjhdl, GLAPI_HANDLE_LENGTH);
if (rc < 0) {
status = gluster2fsal_error(errno);
goto out;
}
rc = construct_handle(glfs_export, &sb, glhandle, globjhdl,
GLAPI_HANDLE_LENGTH, &objhandle);
if (rc != 0) {
status = gluster2fsal_error(rc);
goto out;
}
*handle = &objhandle->handle;
*attrib = objhandle->handle.attributes;
out:
if (status.major != ERR_FSAL_NO_ERROR) {
gluster_cleanup_vars(glhandle);
}
#ifdef GLTIMING
now(&e_time);
latency_update(&s_time, &e_time, lat_makenode);
#endif
return status;
}
/**
* FSAL_create:
* Create a regular file.
*
* \param parent_directory_handle (input):
* Handle of the parent directory where the file is to be created.
* \param p_filename (input):
* Pointer to the name of the file to be created.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param accessmode (input):
* Mode for the file to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param object_handle (output):
* Pointer to the handle of the created file.
* \param object_attributes (optional input/output):
* The attributes of the created file.
* As input, it defines the attributes that the caller
* wants to retrieve (by positioning flags into this structure)
* and the output is built considering this input
* (it fills the structure according to the flags it contains).
* May be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occurred.
*/
fsal_status_t GPFSFSAL_create(fsal_handle_t * p_parent_directory_handle, /* IN */
fsal_name_t * p_filename, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_handle_t * p_object_handle, /* OUT */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
int rc = 0, errsv;
int setgid_bit = 0;
fsal_status_t status;
int fd, newfd;
mode_t unix_mode;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t parent_dir_attrs;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!p_parent_directory_handle || !p_context || !p_object_handle || !p_filename)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_create);
/* convert fsal mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
LogFullDebug(COMPONENT_FSAL, "Creation mode: 0%o", accessmode);
TakeTokenFSCall();
status =
fsal_internal_handle2fd(p_context, p_parent_directory_handle, &fd,
O_RDONLY | O_DIRECTORY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_create);
/* retrieve directory metadata */
parent_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_parent_directory_handle, p_context, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_create);
/* Check the user can write in the directory, and check the setgid bit on the directory */
if(fsal2unix_mode(parent_dir_attrs.mode) & S_ISGID)
setgid_bit = 1;
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_FILE);
status = fsal_internal_testAccess(p_context, access_mask, NULL, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_create);
/* call to filesystem */
TakeTokenFSCall();
/* create the file.
* O_EXCL=> error if the file already exists */
newfd = openat(fd, p_filename->name, O_CREAT | O_WRONLY | O_TRUNC | O_EXCL, unix_mode);
errsv = errno;
if(newfd < 0)
{
close(fd);
ReleaseTokenFSCall();
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_create);
}
/* we no longer need the parent directory open any more */
close(fd);
/* close the file descriptor */
/***
* Previously the file handle was closed here. I don't think that
we need that, but leaving the commented out logic just in case.
rc = close(newfd);
errsv = errno;
if(rc)
{
close(fd);
ReleaseTokenFSCall();
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_create);
}
*/
/* get a handle for this new fd, doing this directly ensures no race
because we still have the fd open until the end of this function */
status = fsal_internal_fd2handle(newfd, p_object_handle);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
{
close(newfd);
ReturnStatus(status, INDEX_FSAL_create);
}
/* the file has been created */
/* chown the file to the current user */
if(p_context->credential.user != geteuid())
{
TakeTokenFSCall();
/* if the setgid_bit was set on the parent directory, do not change the group of the created file, because it's already the parentdir's group */
rc = fchown(newfd, p_context->credential.user,
setgid_bit ? -1 : (int)p_context->credential.group);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
{
close(newfd);
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_create);
}
}
/* if we got this far successfully, but the file close fails, we've
got a problem, possibly a disk full problem. */
close(newfd);
if(rc)
Return(posix2fsal_error(errno), errno, INDEX_FSAL_create);
/* retrieve file attributes */
if(p_object_attributes)
{
status = GPFSFSAL_getattrs(p_object_handle, p_context, p_object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_create);
}
static fsal_status_t setattrs(struct fsal_obj_handle *obj_hdl,
const struct req_op_context *opctx,
struct attrlist *attrs)
{
int rc = 0;
fsal_status_t status = { ERR_FSAL_NO_ERROR, 0 };
struct stat sb;
int mask = 0;
struct glusterfs_export *glfs_export =
container_of(obj_hdl->export, struct glusterfs_export, export);
struct glusterfs_handle *objhandle =
container_of(obj_hdl, struct glusterfs_handle, handle);
#ifdef GLTIMING
struct timespec s_time, e_time;
now(&s_time);
#endif
memset(&sb, 0, sizeof(struct stat));
if (FSAL_TEST_MASK(attrs->mask, ATTR_SIZE)) {
rc = glfs_h_truncate(glfs_export->gl_fs, objhandle->glhandle,
attrs->filesize);
if (rc != 0) {
status = gluster2fsal_error(errno);
goto out;
}
}
if (FSAL_TEST_MASK(attrs->mask, ATTR_MODE)) {
mask |= GLAPI_SET_ATTR_MODE;
sb.st_mode = fsal2unix_mode(attrs->mode);
}
if (FSAL_TEST_MASK(attrs->mask, ATTR_OWNER)) {
mask |= GLAPI_SET_ATTR_UID;
sb.st_uid = attrs->owner;
}
if (FSAL_TEST_MASK(attrs->mask, ATTR_GROUP)) {
mask |= GLAPI_SET_ATTR_GID;
sb.st_gid = attrs->group;
}
if (FSAL_TEST_MASK(attrs->mask, ATTR_ATIME)) {
mask |= GLAPI_SET_ATTR_ATIME;
sb.st_atim = attrs->atime;
}
if (FSAL_TEST_MASK(attrs->mask, ATTR_ATIME_SERVER)) {
mask |= GLAPI_SET_ATTR_ATIME;
struct timespec timestamp;
rc = clock_gettime(CLOCK_REALTIME, ×tamp);
if (rc != 0) {
status = gluster2fsal_error(errno);
goto out;
}
sb.st_atim = timestamp;
}
if (FSAL_TEST_MASK(attrs->mask, ATTR_MTIME)) {
mask |= GLAPI_SET_ATTR_MTIME;
sb.st_mtim = attrs->mtime;
}
if (FSAL_TEST_MASK(attrs->mask, ATTR_MTIME_SERVER)) {
mask |= GLAPI_SET_ATTR_MTIME;
struct timespec timestamp;
rc = clock_gettime(CLOCK_REALTIME, ×tamp);
if (rc != 0) {
status = gluster2fsal_error(rc);
goto out;
}
sb.st_mtim = timestamp;
}
rc = glfs_h_setattrs(glfs_export->gl_fs, objhandle->glhandle, &sb,
mask);
if (rc != 0) {
status = gluster2fsal_error(errno);
goto out;
}
out:
#ifdef GLTIMING
now(&e_time);
latency_update(&s_time, &e_time, lat_setattrs);
#endif
return status;
}
/**
* FSAL_create:
* Create a regular file.
*
* \param parent_hdl (input):
* Handle of the parent directory where the file is to be created.
* \param p_filename (input):
* Pointer to the name of the file to be created.
* \param p_context (input):
* Authentication context for the operation (user,...).
* \param accessmode (input):
* Mode for the file to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param p_object_handle (output):
* Pointer to the handle of the created file.
* \param p_object_attributes (optional input/output):
* The attributes of the created file.
* As input, it defines the attributes that the caller
* wants to retrieve (by positioning flags into this structure)
* and the output is built considering this input
* (it fills the structure according to the flags it contains).
* May be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occurred.
*/
fsal_status_t PTFSAL_create(struct fsal_obj_handle *dir_hdl, /* IN */
const char *p_filename, /* IN */
const struct req_op_context *p_context, /* IN */
uint32_t accessmode, /* IN */
ptfsal_handle_t *p_object_handle, /* OUT */
struct attrlist *p_object_attributes)
{ /* IN/OUT */
int errsv;
fsal_status_t status;
struct pt_fsal_obj_handle *pt_hdl;
mode_t unix_mode;
int open_rc;
ptfsal_handle_t *p_fsi_handle = (ptfsal_handle_t *) p_object_handle;
FSI_TRACE(FSI_DEBUG, "Begin to create file************************\n");
/* sanity checks.
* note : object_attributes is optional.
*/
if (!dir_hdl || !p_context || !p_object_handle || !p_filename)
return fsalstat(ERR_FSAL_FAULT, 0);
pt_hdl = container_of(dir_hdl, struct pt_fsal_obj_handle, obj_handle);
/* convert fsal mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~p_context->fsal_export->exp_ops.
fs_umask(p_context->fsal_export);
LogFullDebug(COMPONENT_FSAL, "Creation mode: 0%o", accessmode);
open_rc =
ptfsal_open(pt_hdl, p_filename, p_context, unix_mode,
p_object_handle);
if (open_rc < 0) {
errsv = errno;
return fsalstat(posix2fsal_error(errsv), errsv);
}
FSI_TRACE(FSI_DEBUG, "New Handle = %s",
(char *)p_fsi_handle->data.handle.f_handle);
/* retrieve file attributes */
if (p_object_attributes) {
status = PTFSAL_getattrs(p_context->fsal_export, p_context,
p_object_handle,
p_object_attributes);
/* on error, we set a special bit in the mask. */
if (FSAL_IS_ERROR(status)) {
FSAL_CLEAR_MASK(p_object_attributes->mask);
FSAL_SET_MASK(p_object_attributes->mask,
ATTR_RDATTR_ERR);
}
}
FSI_TRACE(FSI_DEBUG, "End to create file************************\n");
/* OK */
return fsalstat(ERR_FSAL_NO_ERROR, 0);
}
/**
* VFSFSAL_setattrs:
* Set attributes for the object specified by its filehandle.
*
* \param filehandle (input):
* The handle of the object to get parameters.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param attrib_set (mandatory input):
* The attributes to be set for the object.
* It defines the attributes that the caller
* wants to set and their values.
* \param object_attributes (optionnal input/output):
* The post operation attributes for the object.
* As input, it defines the attributes that the caller
* wants to retrieve (by positioning flags into this structure)
* and the output is built considering this input
* (it fills the structure according to the flags it contains).
* May be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t VFSFSAL_setattrs(fsal_handle_t * p_filehandle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_attrib_list_t * p_attrib_set, /* IN */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
vfsfsal_op_context_t * vfs_context = (vfsfsal_op_context_t *) p_context;
int rc, errsv;
unsigned int i;
fsal_status_t status;
fsal_attrib_list_t attrs;
int fd;
struct stat buffstat;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!p_filehandle || !p_context || !p_attrib_set)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_setattrs);
/* local copy of attributes */
attrs = *p_attrib_set;
/* It does not make sense to setattr on a symlink */
/* if(p_filehandle->type == DT_LNK)
return fsal_internal_setattrs_symlink(p_filehandle, p_context, p_attrib_set,
p_object_attributes);
*/
/* First, check that FSAL attributes changes are allowed. */
/* Is it allowed to change times ? */
if(!global_fs_info.cansettime)
{
if(attrs.asked_attributes
& (FSAL_ATTR_ATIME | FSAL_ATTR_CREATION | FSAL_ATTR_CTIME | FSAL_ATTR_MTIME))
{
/* handled as an unsettable attribute. */
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_setattrs);
}
}
/* apply umask, if mode attribute is to be changed */
if(FSAL_TEST_MASK(attrs.asked_attributes, FSAL_ATTR_MODE))
{
attrs.mode &= (~global_fs_info.umask);
}
TakeTokenFSCall();
status = fsal_internal_handle2fd(p_context, p_filehandle, &fd, O_RDONLY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
{
/* Symbolic link are handled here, they are to be opened as O_PATH */
if( status.minor == ELOOP )
{
if(p_object_attributes)
{
status = VFSFSAL_getattrs(p_filehandle, p_context, p_object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_setattrs);
}
ReturnStatus( status, INDEX_FSAL_setattrs);
}
/* get current attributes */
TakeTokenFSCall();
rc = fstat(fd, &buffstat);
errsv = errno;
ReleaseTokenFSCall();
if(rc != 0)
{
close(fd);
if(errsv == ENOENT)
Return(ERR_FSAL_STALE, errsv, INDEX_FSAL_setattrs);
else
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_setattrs);
}
/***********
* CHMOD *
***********/
if(FSAL_TEST_MASK(attrs.asked_attributes, FSAL_ATTR_MODE))
{
/* The POSIX chmod call don't affect the symlink object, but
* the entry it points to. So we must ignore it.
*/
if(!S_ISLNK(buffstat.st_mode))
{
/* For modifying mode, user must be root or the owner */
if((vfs_context->credential.user != 0)
&& (vfs_context->credential.user != buffstat.st_uid))
{
LogFullDebug(COMPONENT_FSAL,
"Permission denied for CHMOD opeartion: current owner=%d, credential=%d",
buffstat.st_uid, vfs_context->credential.user);
close(fd);
Return(ERR_FSAL_PERM, 0, INDEX_FSAL_setattrs);
}
TakeTokenFSCall();
rc = fchmod(fd, fsal2unix_mode(attrs.mode));
errsv = errno;
ReleaseTokenFSCall();
if(rc)
{
close(fd);
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_setattrs);
}
}
}
/***********
* CHOWN *
***********/
/* Only root can change uid and A normal user must be in the group he wants to set */
if(FSAL_TEST_MASK(attrs.asked_attributes, FSAL_ATTR_OWNER))
{
/* For modifying owner, user must be root or current owner==wanted==client */
if((vfs_context->credential.user != 0) &&
((vfs_context->credential.user != buffstat.st_uid) ||
(vfs_context->credential.user != attrs.owner)))
{
LogFullDebug(COMPONENT_FSAL,
"Permission denied for CHOWN opeartion: current owner=%d, credential=%d, new owner=%d",
buffstat.st_uid, vfs_context->credential.user, attrs.owner);
close(fd);
Return(ERR_FSAL_PERM, 0, INDEX_FSAL_setattrs);
}
}
if(FSAL_TEST_MASK(attrs.asked_attributes, FSAL_ATTR_GROUP))
{
/* For modifying group, user must be root or current owner */
if((vfs_context->credential.user != 0)
&& (vfs_context->credential.user != buffstat.st_uid))
{
close(fd);
Return(ERR_FSAL_PERM, 0, INDEX_FSAL_setattrs);
}
int in_grp = 0;
/* set in_grp */
if(vfs_context->credential.group == attrs.group)
in_grp = 1;
else
for(i = 0; i < vfs_context->credential.nbgroups; i++)
{
if((in_grp = (attrs.group == vfs_context->credential.alt_groups[i])))
break;
}
/* it must also be in target group */
if(vfs_context->credential.user != 0 && !in_grp)
{
LogFullDebug(COMPONENT_FSAL,
"Permission denied for CHOWN operation: current group=%d, credential=%d, new group=%d",
buffstat.st_gid, vfs_context->credential.group, attrs.group);
close(fd);
Return(ERR_FSAL_PERM, 0, INDEX_FSAL_setattrs);
}
}
if(FSAL_TEST_MASK(attrs.asked_attributes, FSAL_ATTR_OWNER | FSAL_ATTR_GROUP))
{
/* LogFullDebug(COMPONENT_FSAL, "Performing chown(%s, %d,%d)",
fsalpath.path, FSAL_TEST_MASK(attrs.asked_attributes,
FSAL_ATTR_OWNER) ? (int)attrs.owner
: -1, FSAL_TEST_MASK(attrs.asked_attributes,
FSAL_ATTR_GROUP) ? (int)attrs.group : -1);*/
TakeTokenFSCall();
rc = fchown(fd,
FSAL_TEST_MASK(attrs.asked_attributes,
FSAL_ATTR_OWNER) ? (int)attrs.owner : -1,
FSAL_TEST_MASK(attrs.asked_attributes,
FSAL_ATTR_GROUP) ? (int)attrs.group : -1);
ReleaseTokenFSCall();
if(rc)
{
close(fd);
Return(posix2fsal_error(errno), errno, INDEX_FSAL_setattrs);
}
}
/***********
* UTIME *
***********/
/* user must be the owner or have read access to modify 'atime' */
if(FSAL_TEST_MASK(attrs.asked_attributes, FSAL_ATTR_ATIME)
&& (vfs_context->credential.user != 0)
&& (vfs_context->credential.user != buffstat.st_uid)
&& ((status = fsal_check_access(p_context, FSAL_R_OK, &buffstat, NULL)).major
!= ERR_FSAL_NO_ERROR))
{
close(fd);
ReturnStatus(status, INDEX_FSAL_setattrs);
}
/* user must be the owner or have write access to modify 'mtime' */
if(FSAL_TEST_MASK(attrs.asked_attributes, FSAL_ATTR_MTIME)
&& (vfs_context->credential.user != 0)
&& (vfs_context->credential.user != buffstat.st_uid)
&& ((status = fsal_check_access(p_context, FSAL_W_OK, &buffstat, NULL)).major
!= ERR_FSAL_NO_ERROR))
{
close(fd);
ReturnStatus(status, INDEX_FSAL_setattrs);
}
if(FSAL_TEST_MASK(attrs.asked_attributes, FSAL_ATTR_ATIME | FSAL_ATTR_MTIME))
{
struct timeval timebuf[2];
/* Atime */
timebuf[0].tv_sec =
(FSAL_TEST_MASK(attrs.asked_attributes, FSAL_ATTR_ATIME) ? (time_t) attrs.
atime.seconds : buffstat.st_atime);
timebuf[0].tv_usec = 0;
/* Mtime */
timebuf[1].tv_sec =
(FSAL_TEST_MASK(attrs.asked_attributes, FSAL_ATTR_MTIME) ? (time_t) attrs.
mtime.seconds : buffstat.st_mtime);
timebuf[1].tv_usec = 0;
TakeTokenFSCall();
rc = futimes(fd, timebuf);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
{
close(fd);
Return(posix2fsal_error(errno), errno, INDEX_FSAL_setattrs);
}
}
/* Optionaly fills output attributes. */
if(p_object_attributes)
{
status = VFSFSAL_getattrs(p_filehandle, p_context, p_object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
close(fd);
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_setattrs);
}
