/**
* FSAL_access :
* Tests whether the user or entity identified by its cred
* can access the object identified by object_handle,
* as indicated by the access_type parameters.
*
* \param object_handle (input):
* The handle of the object to test permissions on.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param access_type (input):
* Indicates the permissions to test.
* This is an inclusive OR of the permissions
* to be checked for the user identified by cred.
* Permissions constants are :
* - FSAL_R_OK : test for read permission
* - FSAL_W_OK : test for write permission
* - FSAL_X_OK : test for exec permission
* - FSAL_F_OK : test for file existence
* \param object_attributes (optional 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 LUSTREFSAL_access(fsal_handle_t * p_object_handle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessflags_t access_type, /* IN */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
fsal_status_t status;
/* sanity checks.
* note : object_attributes is optionnal in FSAL_getattrs.
*/
if(!p_object_handle || !p_context)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_access);
/*
* If an error occures during getattr operation,
* it is returned, even though the access operation succeeded.
*/
if(p_object_attributes)
{
FSAL_SET_MASK(p_object_attributes->asked_attributes,
FSAL_ATTR_OWNER | FSAL_ATTR_GROUP | FSAL_ATTR_ACL | FSAL_ATTR_MODE);
status = LUSTREFSAL_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);
Return(status.major, status.minor, INDEX_FSAL_access);
}
status =
fsal_internal_testAccess(p_context, access_type, NULL, p_object_attributes);
}
else
{ /* p_object_attributes is NULL */
fsal_attrib_list_t attrs;
FSAL_CLEAR_MASK(attrs.asked_attributes);
FSAL_SET_MASK(attrs.asked_attributes,
FSAL_ATTR_OWNER | FSAL_ATTR_GROUP | FSAL_ATTR_ACL | FSAL_ATTR_MODE);
status = LUSTREFSAL_getattrs(p_object_handle, p_context, &attrs);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
Return(status.major, status.minor, INDEX_FSAL_access);
status = fsal_internal_testAccess(p_context, access_type, NULL, &attrs);
}
Return(status.major, status.minor, INDEX_FSAL_access);
}
fsal_status_t posix2fsal_attributes(const struct stat *buffstat,
struct attrlist *fsalattr)
{
FSAL_CLEAR_MASK(fsalattr->mask);
/* sanity checks */
if(!buffstat || !fsalattr)
return fsalstat(ERR_FSAL_FAULT, 0);
FSAL_CLEAR_MASK(fsalattr->mask);
/* Fills the output struct */
fsalattr->type = posix2fsal_type(buffstat->st_mode);
FSAL_SET_MASK(fsalattr->mask, ATTR_TYPE);
fsalattr->filesize = buffstat->st_size;
FSAL_SET_MASK(fsalattr->mask, ATTR_SIZE);
fsalattr->fsid = posix2fsal_fsid(buffstat->st_dev);
FSAL_SET_MASK(fsalattr->mask, ATTR_FSID);
fsalattr->fileid = buffstat->st_ino;
FSAL_SET_MASK(fsalattr->mask, ATTR_FILEID);
fsalattr->mode = unix2fsal_mode(buffstat->st_mode);
FSAL_SET_MASK(fsalattr->mask, ATTR_MODE);
fsalattr->numlinks = buffstat->st_nlink;
FSAL_SET_MASK(fsalattr->mask, ATTR_NUMLINKS);
fsalattr->owner = buffstat->st_uid;
FSAL_SET_MASK(fsalattr->mask, ATTR_OWNER);
fsalattr->group = buffstat->st_gid;
FSAL_SET_MASK(fsalattr->mask, ATTR_GROUP);
fsalattr->atime = posix2fsal_time(buffstat->st_atime, 0);
FSAL_SET_MASK(fsalattr->mask, ATTR_ATIME);
fsalattr->ctime = posix2fsal_time(buffstat->st_ctime, 0);
FSAL_SET_MASK(fsalattr->mask, ATTR_CTIME);
fsalattr->mtime = posix2fsal_time(buffstat->st_mtime, 0);
FSAL_SET_MASK(fsalattr->mask, ATTR_MTIME);
fsalattr->chgtime
= posix2fsal_time(MAX_2(buffstat->st_mtime,
buffstat->st_ctime), 0);
fsalattr->change = fsalattr->chgtime.tv_sec;
FSAL_SET_MASK(fsalattr->mask, ATTR_CHGTIME);
fsalattr->spaceused = buffstat->st_blocks * S_BLKSIZE;
FSAL_SET_MASK(fsalattr->mask, ATTR_SPACEUSED);
fsalattr->rawdev = posix2fsal_devt(buffstat->st_rdev);
FSAL_SET_MASK(fsalattr->mask, ATTR_RAWDEV);
return fsalstat(ERR_FSAL_NO_ERROR, 0);
}
/**
* FSAL_access :
* Tests whether the user or entity identified by the p_context structure
* can access the object identified by object_handle,
* as indicated by the access_type parameter.
*
* \param object_handle (input):
* The handle of the object to test permissions on.
* \param p_context (input):
* Authentication context for the operation (export entry, user,...).
* \param access_type (input):
* Indicates the permissions to be tested.
* This is an inclusive OR of the permissions
* to be checked for the user specified by p_context.
* Permissions constants are :
* - FSAL_R_OK : test for read permission
* - FSAL_W_OK : test for write permission
* - FSAL_X_OK : test for exec permission
* - FSAL_F_OK : test for file existence
* \param object_attributes (optional 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).
* Can be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error, asked permission is granted)
* - ERR_FSAL_ACCESS (object permissions doesn't fit asked access type)
* - ERR_FSAL_STALE (object_handle does not address an existing object)
* - ERR_FSAL_FAULT (a NULL pointer was passed as mandatory argument)
* - Other error codes when something anormal occurs.
*/
fsal_status_t SNMPFSAL_access(fsal_handle_t * object_handle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessflags_t access_type, /* IN */
fsal_attrib_list_t * object_attributes /* [ IN/OUT ] */
)
{
fsal_attrib_list_t attrs;
fsal_status_t st;
/* sanity checks.
* note : object_attributes is optional in FSAL_access.
*/
if(!object_handle || !p_context)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_access);
FSAL_CLEAR_MASK(attrs.asked_attributes);
FSAL_SET_MASK(attrs.asked_attributes, global_fs_info.supported_attrs);
st = SNMPFSAL_getattrs(object_handle, p_context, &attrs);
if(FSAL_IS_ERROR(st))
Return(st.major, st.minor, INDEX_FSAL_access);
/* set attributes if needed, then call test_access.
*/
if(object_attributes)
{
*object_attributes = attrs;
}
st = SNMPFSAL_test_access(p_context, access_type, &attrs);
Return(st.major, st.minor, INDEX_FSAL_access);
}
/**
* @brief Get file attributes from PanFS
*
* Get the attributes and convert them into VFS FSAL attributes
*
* @param[in] panfs_hdl PanFS Object handle to operate on
* @param[in] fd Open FD to operate on
* @param[in,out] attrib Attributes to get / storage for attributes
* @return ERR_FSAL_NO_ERROR on success, other error code on failure
*/
fsal_status_t PanFS_getattrs(struct panfs_fsal_obj_handle *panfs_hdl,
int fd,
struct attrlist *attrib)
{
fsal_status_t st;
struct pan_attrs pattrs;
struct pan_fs_ace_s paces[PAN_FS_ACL_LEN_MAX];
pattrs.acls.naces = PAN_FS_ACL_LEN_MAX;
pattrs.acls.aces = paces;
st = panfs_um_get_attr(fd, &pattrs);
if (FSAL_IS_ERROR(st)) {
FSAL_UNSET_MASK(attrib->mask, ATTR_ACL);
attrib->acl = NULL;
return fsalstat(ERR_FSAL_NO_ERROR, 0);
/*return st;*/
}
st = panfs_acl_2_fsal_acl(&pattrs.acls, attrib);
if (FSAL_IS_ERROR(st)) {
FSAL_CLEAR_MASK(attrib->mask);
FSAL_SET_MASK(attrib->mask, ATTR_RDATTR_ERR);
return st;
}
return fsalstat(ERR_FSAL_NO_ERROR, 0);
}
/**
* 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);
}
void posix2fsal_attributes(const struct stat *buffstat,
struct attrlist *fsalattr)
{
FSAL_CLEAR_MASK(fsalattr->mask);
/* Fills the output struct */
fsalattr->type = posix2fsal_type(buffstat->st_mode);
FSAL_SET_MASK(fsalattr->mask, ATTR_TYPE);
fsalattr->filesize = buffstat->st_size;
FSAL_SET_MASK(fsalattr->mask, ATTR_SIZE);
fsalattr->fsid = posix2fsal_fsid(buffstat->st_dev);
FSAL_SET_MASK(fsalattr->mask, ATTR_FSID);
fsalattr->fileid = buffstat->st_ino;
FSAL_SET_MASK(fsalattr->mask, ATTR_FILEID);
fsalattr->mode = unix2fsal_mode(buffstat->st_mode);
FSAL_SET_MASK(fsalattr->mask, ATTR_MODE);
fsalattr->numlinks = buffstat->st_nlink;
FSAL_SET_MASK(fsalattr->mask, ATTR_NUMLINKS);
fsalattr->owner = buffstat->st_uid;
FSAL_SET_MASK(fsalattr->mask, ATTR_OWNER);
fsalattr->group = buffstat->st_gid;
FSAL_SET_MASK(fsalattr->mask, ATTR_GROUP);
/* Use full timer resolution */
#ifdef LINUX
fsalattr->atime = buffstat->st_atim;
fsalattr->ctime = buffstat->st_ctim;
fsalattr->mtime = buffstat->st_mtim;
fsalattr->chgtime =
(gsh_time_cmp(&buffstat->st_mtim, &buffstat->st_ctim) >
0) ? fsalattr->mtime : fsalattr->ctime;
#elif FREEBSD
fsalattr->atime = buffstat->st_atimespec;
fsalattr->ctime = buffstat->st_ctimespec;
fsalattr->mtime = buffstat->st_mtimespec;
fsalattr->chgtime =
(gsh_time_cmp(&buffstat->st_mtimespec, &buffstat->st_ctimespec) >
0) ? fsalattr->mtime : fsalattr->ctime;
#endif
FSAL_SET_MASK(fsalattr->mask, ATTR_ATIME);
FSAL_SET_MASK(fsalattr->mask, ATTR_CTIME);
FSAL_SET_MASK(fsalattr->mask, ATTR_MTIME);
fsalattr->change = timespec_to_nsecs(&fsalattr->chgtime);
FSAL_SET_MASK(fsalattr->mask, ATTR_CHGTIME);
fsalattr->spaceused = buffstat->st_blocks * S_BLKSIZE;
FSAL_SET_MASK(fsalattr->mask, ATTR_SPACEUSED);
fsalattr->rawdev = posix2fsal_devt(buffstat->st_rdev);
FSAL_SET_MASK(fsalattr->mask, ATTR_RAWDEV);
}
fsal_status_t SNMPFSAL_readlink(snmpfsal_handle_t * linkhandle, /* IN */
snmpfsal_op_context_t * p_context, /* IN */
fsal_path_t * p_link_content, /* OUT */
fsal_attrib_list_t * link_attributes /* [ IN/OUT ] */
)
{
int rc;
fsal_status_t st;
char link_content_out[FSAL_MAX_PATH_LEN];
/* sanity checks.
* note : link_attributes is optional.
*/
if(!linkhandle || !p_context || !p_link_content)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_readlink);
TakeTokenFSCall();
/* >> call your filesystem readlink function << */
ReleaseTokenFSCall();
/* >> convert error code and return on error << */
/* >> convert fs output to fsal_path_t
* for example, if this is a char * (link_content_out) :
*/
st = FSAL_str2path(link_content_out, FSAL_MAX_PATH_LEN, p_link_content);
if(FSAL_IS_ERROR(st))
Return(st.major, st.minor, INDEX_FSAL_readlink);
/* retrieves object attributes, if asked */
if(link_attributes)
{
fsal_status_t status;
status = SNMPFSAL_getattrs(linkhandle, p_context, link_attributes);
/* On error, we set a flag in the returned attributes */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(link_attributes->asked_attributes);
FSAL_SET_MASK(link_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_readlink);
}
fsal_status_t ZFSFSAL_readlink(zfsfsal_handle_t * linkhandle, /* IN */
zfsfsal_op_context_t * p_context, /* IN */
fsal_path_t * p_link_content, /* OUT */
fsal_attrib_list_t * link_attributes /* [ IN/OUT ] */
)
{
int rc;
fsal_status_t st;
char link_content_out[FSAL_MAX_PATH_LEN];
/* sanity checks.
* note : link_attributes is optional.
*/
if(!linkhandle || !p_context || !p_link_content)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_readlink);
TakeTokenFSCall();
rc = libzfswrap_readlink(p_context->export_context->p_vfs, &p_context->user_credential.cred,
linkhandle->data.zfs_handle, link_content_out, sizeof(link_content_out));
ReleaseTokenFSCall();
/* >> convert error code and return on error << */
/* >> convert fs output to fsal_path_t
* for example, if this is a char * (link_content_out) :
*/
st = FSAL_str2path(link_content_out, FSAL_MAX_PATH_LEN, p_link_content);
if(FSAL_IS_ERROR(st))
Return(st.major, st.minor, INDEX_FSAL_readlink);
/* retrieves object attributes, if asked */
if(link_attributes)
{
fsal_status_t status;
status = ZFSFSAL_getattrs(linkhandle, p_context, link_attributes);
/* On error, we set a flag in the returned attributes */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(link_attributes->asked_attributes);
FSAL_SET_MASK(link_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_readlink);
}
fsal_status_t FUSEFSAL_truncate(fsal_handle_t *handle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_size_t length, /* IN */
fsal_file_t * file_descriptor, /* Unused in this FSAL */
fsal_attrib_list_t * object_attributes /* [ IN/OUT ] */
)
{
int rc;
char object_path[FSAL_MAX_PATH_LEN];
fusefsal_handle_t * filehandle = (fusefsal_handle_t *)handle;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!filehandle || !p_context)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_truncate);
if(!p_fs_ops->truncate)
Return(ERR_FSAL_NOTSUPP, 0, INDEX_FSAL_truncate);
/* get the full path for the object */
rc = NamespacePath(filehandle->data.inode, filehandle->data.device, filehandle->data.validator,
object_path);
if(rc)
Return(ERR_FSAL_STALE, rc, INDEX_FSAL_truncate);
/* set context for the next operation, so it can be retrieved by FS thread */
fsal_set_thread_context(p_context);
TakeTokenFSCall();
rc = p_fs_ops->truncate(object_path, (off_t) length);
ReleaseTokenFSCall();
if(rc)
Return(fuse2fsal_error(rc, TRUE), rc, INDEX_FSAL_truncate);
if(object_attributes)
{
fsal_status_t st;
st = FUSEFSAL_getattrs(handle, p_context, object_attributes);
if(FSAL_IS_ERROR(st))
{
FSAL_CLEAR_MASK(object_attributes->asked_attributes);
FSAL_SET_MASK(object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* No error occured */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_truncate);
}
fsal_status_t ZFSFSAL_symlink(zfsfsal_handle_t * parent_directory_handle, /* IN */
fsal_name_t * p_linkname, /* IN */
fsal_path_t * p_linkcontent, /* IN */
zfsfsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN (ignored) */
zfsfsal_handle_t * link_handle, /* OUT */
fsal_attrib_list_t * link_attributes /* [ IN/OUT ] */
)
{
int rc;
/* sanity checks.
* note : link_attributes is optional.
*/
if(!parent_directory_handle ||
!p_context || !link_handle || !p_linkname || !p_linkcontent)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_symlink);
/* Tests if symlinking is allowed by configuration. */
if(!global_fs_info.symlink_support)
Return(ERR_FSAL_NOTSUPP, 0, INDEX_FSAL_symlink);
TakeTokenFSCall();
inogen_t object;
rc = libzfswrap_symlink(p_context->export_context->p_vfs, &p_context->user_credential.cred,
parent_directory_handle->data.zfs_handle, p_linkname->name,
p_linkcontent->path, &object);
ReleaseTokenFSCall();
/* >> convert status and return on error << */
/* >> set output handle << */
link_handle->data.zfs_handle = object;
link_handle->data.type = FSAL_TYPE_LNK;
if(link_attributes)
{
fsal_status_t status = ZFSFSAL_getattrs(link_handle, p_context, link_attributes);
/* On error, we set a flag in the returned attributes */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(link_attributes->asked_attributes);
FSAL_SET_MASK(link_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_symlink);
}
/**
* 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);
}
/**
* FSAL_link:
* Create a hardlink.
*
* \param exttarget (input):
* Handle of the target object.
* \param extdir (input):
* Pointer to the directory handle where
* the hardlink is to be created.
* \param link_name (input):
* Pointer to the name of the hardlink to be created.
* \param extcontext (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 attributes (optionnal input/output):
* The post_operation attributes of the linked 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)
* - ERR_FSAL_STALE (target or dir 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 attributes->asked_attributes field.
*/
fsal_status_t CEPHFSAL_link(fsal_handle_t * exttarget,
fsal_handle_t * extdir,
fsal_name_t * link_name,
fsal_op_context_t * extcontext,
fsal_attrib_list_t * attributes)
{
int rc;
struct stat st;
char strname[FSAL_MAX_NAME_LEN];
cephfsal_handle_t* target = (cephfsal_handle_t*) exttarget;
cephfsal_handle_t* dir = (cephfsal_handle_t*) extdir;
cephfsal_op_context_t* context = (cephfsal_op_context_t*) context;
struct ceph_mount_info *cmount = context->export_context->cmount;
int uid = FSAL_OP_CONTEXT_TO_UID(context);
int gid = FSAL_OP_CONTEXT_TO_GID(context);
/* sanity checks.
* note : attributes is optional.
*/
if(!target || !dir || !context || !link_name)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_link);
memset(target, 0, sizeof(cephfsal_handle_t));
/* Tests if hardlinking is allowed by configuration. */
if(!global_fs_info.link_support)
Return(ERR_FSAL_NOTSUPP, 0, INDEX_FSAL_link);
FSAL_name2str(link_name, strname, FSAL_MAX_NAME_LEN);
TakeTokenFSCall();
rc = ceph_ll_link(cmount, VINODE(target), VINODE(dir), strname, &st,
uid, gid);
ReleaseTokenFSCall();
if (rc < 0)
Return(posix2fsal_error(rc), 0, INDEX_FSAL_link);
if(attributes)
{
fsal_status_t status;
status = posix2fsal_attributes(&st, attributes);
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(attributes->asked_attributes);
FSAL_SET_MASK(attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_link);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_link);
}
/**
* GPFSFSAL_getattrs:
* Get 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 object_attributes (mandatory input/output):
* The retrieved 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).
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t GPFSFSAL_getattrs(fsal_handle_t * p_filehandle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_attrib_list_t * p_object_attributes /* IN/OUT */
)
{
fsal_status_t st;
gpfsfsal_xstat_t buffxstat;
#ifdef _USE_NFS4_ACL
fsal_accessflags_t access_mask = 0;
#endif
/* sanity checks.
* note : object_attributes is mandatory in GPFSFSAL_getattrs.
*/
if(!p_filehandle || !p_context || !p_object_attributes)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_getattrs);
TakeTokenFSCall();
st = fsal_get_xstat_by_handle(p_context,
p_filehandle,
&buffxstat);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(st))
ReturnStatus(st, INDEX_FSAL_getattrs);
/* convert attributes */
st = gpfsfsal_xstat_2_fsal_attributes(&buffxstat, p_object_attributes);
if(FSAL_IS_ERROR(st))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
ReturnStatus(st, INDEX_FSAL_getattrs);
}
#ifdef _USE_NFS4_ACL
if(p_object_attributes->acl)
{
/* Check permission to get attributes and ACL. */
access_mask = FSAL_MODE_MASK_SET(0) | /* Dummy */
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_READ_ATTR |
FSAL_ACE_PERM_READ_ACL);
st = fsal_internal_testAccess(p_context, access_mask, NULL, p_object_attributes);
if(FSAL_IS_ERROR(st))
ReturnStatus(st, INDEX_FSAL_getattrs);
}
#endif
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_getattrs);
}
/*
* Common code used by fsal_lookup and fsal_readdir -
* given the name try to stat an entry. If an entry is
* regular file or directory then open it and use fd2handle
* to get a real handle, otherwise use inum2handle to fake
* a handle.
*/
fsal_status_t
xfsfsal_stat_by_name(fsal_op_context_t * context,
int atfd,
const char *name,
fsal_handle_t *handle,
fsal_attrib_list_t * attributes)
{
int rc;
int errsv;
struct stat buffstat;
fsal_status_t st;
TakeTokenFSCall();
rc = fstatat(atfd, name, &buffstat, AT_SYMLINK_NOFOLLOW);
errsv = errno;
ReleaseTokenFSCall();
if(rc < 0)
ReturnCode(posix2fsal_error(errsv), errsv);
if(S_ISDIR(buffstat.st_mode) || S_ISREG(buffstat.st_mode))
{
int tmpfd;
TakeTokenFSCall();
tmpfd = openat(atfd, name, O_RDONLY | O_NOFOLLOW, 0600);
errsv = errno;
ReleaseTokenFSCall();
if(tmpfd < 0)
ReturnCode(posix2fsal_error(errsv), errsv);
st = fsal_internal_fd2handle(context, tmpfd, handle);
close(tmpfd);
}
else
{
st = fsal_internal_inum2handle(context, buffstat.st_ino, handle);
}
if(FSAL_IS_ERROR(st))
return st;
if(attributes)
{
st = posix2fsal_attributes(&buffstat, attributes);
if(FSAL_IS_ERROR(st))
{
FSAL_CLEAR_MASK(attributes->asked_attributes);
FSAL_SET_MASK(attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
return st;
}
/**
* FSAL_getattrs:
* Get 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 object_attributes (mandatory input/output):
* The retrieved 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).
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t XFSFSAL_getattrs(fsal_handle_t * p_filehandle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_attrib_list_t * p_object_attributes /* IN/OUT */
)
{
int rc, errsv;
fsal_status_t st;
int fd;
struct stat buffstat;
/* sanity checks.
* note : object_attributes is mandatory in FSAL_getattrs.
*/
if(!p_filehandle || !p_context || !p_object_attributes)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_getattrs);
TakeTokenFSCall();
st = fsal_internal_handle2fd(p_context, p_filehandle, &fd, O_RDONLY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(st))
ReturnStatus(st, INDEX_FSAL_getattrs);
/* get file metadata */
TakeTokenFSCall();
rc = fstat(fd, &buffstat);
errsv = errno;
ReleaseTokenFSCall();
close(fd);
if(rc != 0)
{
if(errsv == ENOENT)
Return(ERR_FSAL_STALE, errsv, INDEX_FSAL_getattrs);
else
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_getattrs);
}
/* convert attributes */
st = posix2fsal_attributes(&buffstat, p_object_attributes);
if(FSAL_IS_ERROR(st))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
ReturnStatus(st, INDEX_FSAL_getattrs);
}
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_getattrs);
}
/**
* FSAL_link:
* Create a hardlink.
*
* \param target_handle (input):
* Handle of the target object.
* \param dir_handle (input):
* Pointer to the directory handle where
* the hardlink is to be created.
* \param p_link_name (input):
* Pointer to the name of the hardlink 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 attributes (optionnal input/output):
* The post_operation attributes of the linked 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)
* - ERR_FSAL_STALE (target_handle or dir_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 attributes->asked_attributes field.
*/
fsal_status_t ZFSFSAL_link(zfsfsal_handle_t * target_handle, /* IN */
zfsfsal_handle_t * dir_handle, /* IN */
fsal_name_t * p_link_name, /* IN */
zfsfsal_op_context_t * p_context, /* IN */
fsal_attrib_list_t * attributes /* [ IN/OUT ] */
)
{
int rc;
/* sanity checks.
* note : attributes is optional.
*/
if(!target_handle || !dir_handle || !p_context || !p_link_name)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_link);
/* Tests if hardlinking is allowed by configuration. */
if(!global_fs_info.link_support)
Return(ERR_FSAL_NOTSUPP, 0, INDEX_FSAL_link);
TakeTokenFSCall();
rc = libzfswrap_link(p_context->export_context->p_vfs, &p_context->user_credential.cred,
dir_handle->data.zfs_handle, target_handle->data.zfs_handle, p_link_name->name);
ReleaseTokenFSCall();
/* >> interpret returned error << */
if(rc)
Return(posix2fsal_error(rc), 0, INDEX_FSAL_link);
if(attributes)
{
fsal_status_t status = ZFSFSAL_getattrs(target_handle, p_context, attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(attributes->asked_attributes);
FSAL_SET_MASK(attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_link);
}
/**
* FSAL_readlink:
* Read the content of a symbolic link.
*
* \param dir_hdl (input):
* Handle of the link to be read.
* \param p_context (input):
* Authentication context for the operation (user,...).
* \param p_link_content (output):
* Pointer to an fsal path structure where
* the link content is to be stored..
* \param link_len (input/output):
* In pointer to len of content buff.
. Out actual len of content.
* \param link_attributes (optionnal input/output):
* The post operation attributes of the symlink link.
* 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_readlink(struct fsal_obj_handle *dir_hdl, /* IN */
const struct req_op_context *p_context, /* IN */
char *p_link_content, /* OUT */
size_t *link_len, /* IN/OUT */
struct attrlist *p_link_attributes)
{ /* IN/OUT */
fsal_status_t status;
struct pt_fsal_obj_handle *pt_hdl;
char link_content_out[PATH_MAX];
/* sanity checks.
* note : link_attributes is optional.
*/
if (!dir_hdl || !p_context || !p_link_content)
return fsalstat(ERR_FSAL_FAULT, 0);
pt_hdl = container_of(dir_hdl, struct pt_fsal_obj_handle, obj_handle);
memset(link_content_out, 0, sizeof(link_content_out));
/* Read the link on the filesystem */
status = fsal_readlink_by_handle(p_context, p_context->fsal_export,
pt_hdl->handle, p_link_content, *link_len);
if (FSAL_IS_ERROR(status))
return status;
/* retrieves object attributes, if asked */
if (p_link_attributes) {
status = PTFSAL_getattrs(p_context->fsal_export, p_context,
pt_hdl->handle, p_link_attributes);
/* On error, we set a flag in the returned attributes */
if (FSAL_IS_ERROR(status)) {
FSAL_CLEAR_MASK(p_link_attributes->mask);
FSAL_SET_MASK(p_link_attributes->mask, ATTR_RDATTR_ERR);
}
}
return fsalstat(ERR_FSAL_NO_ERROR, 0);
}
/**
* FSAL_getattrs:
* Get 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 object_attributes (mandatory input/output):
* The retrieved 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).
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t LUSTREFSAL_getattrs(fsal_handle_t * p_filehandle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_attrib_list_t * p_object_attributes /* IN/OUT */
)
{
int rc;
fsal_status_t st;
fsal_path_t fsalpath;
struct stat buffstat;
/* sanity checks.
* note : object_attributes is mandatory in FSAL_getattrs.
*/
if(!p_filehandle || !p_context || !p_object_attributes)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_getattrs);
/* get the path of the file */
st = fsal_internal_Handle2FidPath(p_context, p_filehandle, &fsalpath);
if(FSAL_IS_ERROR(st))
ReturnStatus(st, INDEX_FSAL_getattrs);
/* get file metadata */
TakeTokenFSCall();
rc = lstat(fsalpath.path, &buffstat);
ReleaseTokenFSCall();
if(rc != 0)
{
rc = errno;
if(rc == ENOENT)
Return(ERR_FSAL_STALE, rc, INDEX_FSAL_getattrs);
else
Return(posix2fsal_error(rc), rc, INDEX_FSAL_getattrs);
}
/* convert attributes */
st = posix2fsal_attributes(&buffstat, p_object_attributes);
if(FSAL_IS_ERROR(st))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
ReturnStatus(st, INDEX_FSAL_getattrs);
}
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_getattrs);
}
/**
* FSAL_opendir :
* Opens a directory for reading its content.
*
* \param exthandle (input)
* the handle of the directory to be opened.
* \param extcontext (input)
* Permission context for the operation (user, export context...).
* \param extdescriptor (output)
* pointer to an allocated structure that will receive
* directory stream informations, on successfull completion.
* \param attributes (optional output)
* On successfull completion,the structure pointed
* by dir_attributes receives the new directory attributes.
* Can be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - ERR_FSAL_ACCESS (user does not have read permission on directory)
* - ERR_FSAL_STALE (exthandle 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_IO, ...
*/
fsal_status_t CEPHFSAL_opendir(fsal_handle_t * exthandle,
fsal_op_context_t * extcontext,
fsal_dir_t * extdescriptor,
fsal_attrib_list_t * dir_attributes)
{
cephfsal_handle_t* handle = (cephfsal_handle_t*) exthandle;
cephfsal_op_context_t* context = (cephfsal_op_context_t*) extcontext;
cephfsal_dir_t* descriptor = (cephfsal_dir_t*) extdescriptor;
fsal_status_t status;
int rc;
int uid = FSAL_OP_CONTEXT_TO_UID(context);
int gid = FSAL_OP_CONTEXT_TO_GID(context);
struct ceph_dir_result *dh;
/* sanity checks
* note : dir_attributes is optional.
*/
if(!handle || !context || !descriptor)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_opendir);
TakeTokenFSCall();
/* XXX ceph_ll_opendir has void in the interface, but Client::ll_opendir
* is using dir_result_t. */
rc = ceph_ll_opendir(context->export_context->cmount, VINODE(handle),
(void *) &dh, uid, gid);
ReleaseTokenFSCall();
if (rc < 0)
Return(posix2fsal_error(rc), 0, INDEX_FSAL_opendir);
descriptor->dh = dh;
descriptor->vi = VINODE(handle);
descriptor->ctx = *context;
if(dir_attributes)
{
status = CEPHFSAL_getattrs(exthandle, extcontext, dir_attributes);
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(dir_attributes->asked_attributes);
FSAL_SET_MASK(dir_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_opendir);
}
static fsal_status_t getattrs(struct fsal_obj_handle *obj_hdl,
struct attrlist *attrs)
{
struct gpfs_fsal_obj_handle *myself;
fsal_status_t status;
myself = container_of(obj_hdl, struct gpfs_fsal_obj_handle,
obj_handle);
status = GPFSFSAL_getattrs(op_ctx->fsal_export,
obj_hdl->fs->private_data,
op_ctx, myself->handle,
attrs);
if (FSAL_IS_ERROR(status)) {
FSAL_CLEAR_MASK(attrs->mask);
FSAL_SET_MASK(attrs->mask, ATTR_RDATTR_ERR);
}
return status;
}
fsal_status_t GPFSFSAL_lookupPath(fsal_path_t * p_path, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_handle_t * object_handle, /* OUT */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
fsal_status_t status;
/* sanity checks
* note : object_attributes is optionnal.
*/
if(!object_handle || !p_context || !p_path)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_lookupPath);
/* test whether the path begins with a slash */
if(p_path->path[0] != '/')
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_lookupPath);
/* directly call the lookup function */
status = fsal_internal_get_handle(p_context, p_path, object_handle);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_lookupPath);
/* get object attributes */
if(p_object_attributes)
{
status = GPFSFSAL_getattrs(object_handle, p_context, p_object_attributes);
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_lookupPath);
}
fsal_status_t SNMPFSAL_setattrs(fsal_handle_t * filehandle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_attrib_list_t * attrib_set, /* IN */
fsal_attrib_list_t * object_attributes /* [ IN/OUT ] */
)
{
int rc;
fsal_status_t status;
fsal_attrib_list_t attrs;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!filehandle || !p_context || !attrib_set)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_setattrs);
/* no attributes can be set in SNMP */
if(attrs.asked_attributes != 0)
{
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_setattrs);
}
if(object_attributes)
{
status = SNMPFSAL_getattrs(filehandle, 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);
}
}
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_setattrs);
}
/**
* FSAL_getattrs:
* Get attributes for the object specified by its filehandle.
*
* \param filehandle (input):
* The handle of the object to get parameters.
* \param context (input):
* Authentication context for the operation (user, export...).
* \param object_attributes (mandatory input/output):
* The retrieved 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).
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - ERR_FSAL_STALE (object_handle does not address an existing object)
* - ERR_FSAL_FAULT (a NULL pointer was passed as mandatory argument)
* - Another error code if an error occured.
*/
fsal_status_t CEPHFSAL_getattrs(fsal_handle_t * exthandle,
fsal_op_context_t * extcontext,
fsal_attrib_list_t * object_attributes)
{
int rc;
struct stat st;
fsal_status_t status;
cephfsal_handle_t* filehandle = (cephfsal_handle_t*) exthandle;
cephfsal_op_context_t* context = (cephfsal_op_context_t*) extcontext;
int uid = FSAL_OP_CONTEXT_TO_UID(context);
int gid = FSAL_OP_CONTEXT_TO_GID(context);
/* sanity checks.
* note : object_attributes is mandatory in FSAL_getattrs.
*/
if(!filehandle || !context || !object_attributes)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_getattrs);
TakeTokenFSCall();
rc = ceph_ll_getattr(context->export_context->cmount, VINODE(filehandle),
&st, uid, gid);
ReleaseTokenFSCall();
if (rc < 0)
Return(posix2fsal_error(rc), 0, INDEX_FSAL_getattrs);
/* convert attributes */
status = posix2fsal_attributes(&st, object_attributes);
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(object_attributes->asked_attributes);
FSAL_SET_MASK(object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_getattrs);
}
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_getattrs);
}
/**
* VFSFSAL_getattrs:
* Get 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 object_attributes (mandatory input/output):
* The retrieved 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).
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t VFSFSAL_getattrs(fsal_handle_t * p_filehandle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_attrib_list_t * p_object_attributes /* IN/OUT */
)
{
fsal_status_t st;
int rc = 0 ;
int errsv;
struct stat buffstat;
/* sanity checks.
* note : object_attributes is mandatory in VFSFSAL_getattrs.
*/
if(!p_filehandle || !p_context || !p_object_attributes)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_getattrs);
TakeTokenFSCall();
rc = vfs_stat_by_handle( ((vfsfsal_op_context_t *)p_context)->export_context->mount_root_fd,
&((vfsfsal_handle_t *)p_filehandle)->data.vfs_handle,
&buffstat ) ;
errsv = errno;
ReleaseTokenFSCall();
if( rc == -1 )
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_getattrs);
/* convert attributes */
st = posix2fsal_attributes(&buffstat, p_object_attributes);
if(FSAL_IS_ERROR(st))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
ReturnStatus(st, INDEX_FSAL_getattrs);
}
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_getattrs);
}
/**
* FSAL_opendir :
* Opens a directory for reading its content.
*
* \param dir_handle (input)
* the handle of the directory to be opened.
* \param p_context (input)
* Permission context for the operation (user, export context...).
* \param dir_descriptor (output)
* pointer to an allocated structure that will receive
* directory stream informations, on successfull completion.
* \param dir_attributes (optional output)
* On successfull completion,the structure pointed
* by dir_attributes receives the new directory attributes.
* Can be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - ERR_FSAL_ACCESS (user does not have read permission on directory)
* - ERR_FSAL_STALE (dir_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_IO, ...
*/
fsal_status_t SNMPFSAL_opendir(fsal_handle_t * dir_handle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_dir_t * dir_descriptor, /* OUT */
fsal_attrib_list_t * dir_attributes /* [ IN/OUT ] */
)
{
fsal_status_t st;
/* sanity checks
* note : dir_attributes is optionnal.
*/
if(!dir_handle || !p_context || !dir_descriptor)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_opendir);
/* check it is a node... */
if(((snmpfsal_handle_t *)dir_handle)->data.object_type_reminder == FSAL_NODETYPE_LEAF)
Return(ERR_FSAL_NOTDIR, 0, INDEX_FSAL_opendir);
/* save request info to the dir_dircriptor */
memcpy(&((snmpfsal_dir_t *)dir_descriptor)->node_handle,
(snmpfsal_handle_t *)dir_handle, sizeof(snmpfsal_handle_t));
((snmpfsal_dir_t *)dir_descriptor)->p_context = (snmpfsal_op_context_t *)p_context;
if(dir_attributes && dir_attributes->asked_attributes)
{
st = SNMPFSAL_getattrs(dir_handle, p_context, dir_attributes);
if(FSAL_IS_ERROR(st))
{
FSAL_CLEAR_MASK(dir_attributes->asked_attributes);
FSAL_SET_MASK(dir_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_opendir);
}
/**
* VFSFSAL_getattrs_descriptor:
* Get attributes for the object specified by its descriptor or by it's filehandle.
*
* \param p_file_descriptor (input):
* The file descriptor of the object to get parameters.
* \param p_filehandle (input):
* The handle of the object to get parameters.
* \param p_context (input):
* Authentication context for the operation (user,...).
* \param p_object_attributes (mandatory input/output):
* The retrieved 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).
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t VFSFSAL_getattrs_descriptor(fsal_file_t * p_file_descriptor, /* IN */
fsal_handle_t * p_filehandle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_attrib_list_t * p_object_attributes /* IN/OUT */
)
{
fsal_status_t st;
struct stat64 buffstat;
int rc, errsv;
/* sanity checks.
* note : object_attributes is mandatory in VFSFSAL_getattrs.
*/
if(!p_file_descriptor || !p_filehandle || !p_context || !p_object_attributes)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_getattrs_descriptor);
TakeTokenFSCall();
rc = fstat64(((vfsfsal_file_t *)p_file_descriptor)->fd, &buffstat);
errsv = errno;
ReleaseTokenFSCall();
if(rc == -1)
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_getattrs_descriptor);
/* convert attributes */
st = posixstat64_2_fsal_attributes(&buffstat, p_object_attributes);
if(FSAL_IS_ERROR(st))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
ReturnStatus(st, INDEX_FSAL_getattrs_descriptor);
}
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_getattrs_descriptor);
}
fsal_status_t GPFSFSAL_unlink(struct fsal_obj_handle *dir_hdl, /* IN */
const char *p_object_name, /* IN */
const struct req_op_context *p_context, /* IN */
struct attrlist *p_parent_attributes)
{ /* IN/OUT */
fsal_status_t status;
gpfsfsal_xstat_t buffxstat;
int mount_fd;
struct gpfs_fsal_obj_handle *gpfs_hdl;
/* sanity checks. */
if (!dir_hdl || !p_context || !p_object_name)
return fsalstat(ERR_FSAL_FAULT, 0);
gpfs_hdl =
container_of(dir_hdl, struct gpfs_fsal_obj_handle, obj_handle);
mount_fd = gpfs_get_root_fd(dir_hdl->export);
/* build the child path */
/* get file metadata */
status =
fsal_internal_stat_name(mount_fd, gpfs_hdl->handle, p_object_name,
&buffxstat.buffstat);
if (FSAL_IS_ERROR(status))
return status;
/******************************
* DELETE FROM THE FILESYSTEM *
******************************/
fsal_set_credentials(p_context->creds);
status =
fsal_internal_unlink(mount_fd, gpfs_hdl->handle, p_object_name,
&buffxstat.buffstat);
fsal_restore_ganesha_credentials();
if (FSAL_IS_ERROR(status))
return status;
/***********************
* FILL THE ATTRIBUTES *
***********************/
if (p_parent_attributes) {
buffxstat.attr_valid = XATTR_STAT;
status =
gpfsfsal_xstat_2_fsal_attributes(&buffxstat,
p_parent_attributes);
if (FSAL_IS_ERROR(status)) {
FSAL_CLEAR_MASK(p_parent_attributes->mask);
FSAL_SET_MASK(p_parent_attributes->mask,
ATTR_RDATTR_ERR);
}
}
/* OK */
return fsalstat(ERR_FSAL_NO_ERROR, 0);
}
fsal_status_t FSAL_proxy_truncate_stateless(proxyfsal_handle_t * filehandle, /* IN */
proxyfsal_op_context_t * p_context, /* IN */
fsal_size_t length, /* IN */
fsal_attrib_list_t * object_attributes /* [ IN/OUT ] */
)
{
int rc;
COMPOUND4args argnfs4;
COMPOUND4res resnfs4;
nfs_fh4 nfs4fh;
fsal_status_t fsal_status;
fsal_attrib_list_t open_attrs;
bitmap4 inbitmap;
bitmap4 convert_bitmap;
uint32_t inbitmap_val[2];
uint32_t bitmap_res[2];
uint32_t bitmap_set[2];
uint32_t bitmap_conv_val[2];
#define FSAL_TRUNCATE_STATELESS_NB_OP_ALLOC 3
nfs_argop4 argoparray[FSAL_TRUNCATE_STATELESS_NB_OP_ALLOC];
nfs_resop4 resoparray[FSAL_TRUNCATE_STATELESS_NB_OP_ALLOC];
fsal_attrib_list_t fsal_attr_set;
fattr4 fattr_set;
fsal_proxy_internal_fattr_t fattr_internal;
struct timeval timeout = { 25, 0 };
/* sanity checks.
* note : object_attributes is optional.
*/
if(!filehandle || !p_context)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_truncate);
if(filehandle->data.object_type_reminder != FSAL_TYPE_FILE)
{
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_truncate);
}
/* Setup results structures */
argnfs4.argarray.argarray_val = argoparray;
resnfs4.resarray.resarray_val = resoparray;
fsal_internal_proxy_setup_fattr(&fattr_internal);
argnfs4.minorversion = 0;
/* argnfs4.tag.utf8string_val = "GANESHA NFSv4 Proxy: Truncate" ; */
argnfs4.tag.utf8string_val = NULL;
argnfs4.tag.utf8string_len = 0;
argnfs4.argarray.argarray_len = 0;
/* Get NFSv4 File handle */
if(fsal_internal_proxy_extract_fh(&nfs4fh, filehandle) == FALSE)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_truncate);
/* Get prepared for truncate */
fsal_attr_set.asked_attributes = FSAL_ATTR_SIZE;
fsal_attr_set.filesize = length;
convert_bitmap.bitmap4_val = bitmap_conv_val;
convert_bitmap.bitmap4_len = 2;
fsal_interval_proxy_fsalattr2bitmap4(&fsal_attr_set, &convert_bitmap);
if(nfs4_FSALattr_To_Fattr(NULL, /* no exportlist required here */
&fsal_attr_set, &fattr_set, NULL, /* no compound data required here */
NULL, /* No fh here, filehandle is not a settable attribute */
&convert_bitmap) == -1)
Return(ERR_FSAL_INVAL, -1, INDEX_FSAL_truncate);
inbitmap.bitmap4_val = inbitmap_val;
inbitmap.bitmap4_len = 2;
fsal_internal_proxy_create_fattr_bitmap(&inbitmap);
#define FSAL_TRUNCATE_STATELESS_IDX_OP_PUTFH 0
#define FSAL_TRUNCATE_STATELESS_IDX_OP_SETATTR 1
#define FSAL_TRUNCATE_STATELESS_IDX_OP_GETATTR 2
COMPOUNDV4_ARG_ADD_OP_PUTFH(argnfs4, nfs4fh);
COMPOUNDV4_ARG_ADD_OP_SETATTR(argnfs4, fattr_set);
COMPOUNDV4_ARG_ADD_OP_GETATTR(argnfs4, inbitmap);
/* For ATTR_SIZE, stateid is needed, we use the stateless "all-0's" stateid here */
argnfs4.argarray.argarray_val[FSAL_TRUNCATE_STATELESS_IDX_OP_SETATTR].nfs_argop4_u.
opsetattr.stateid.seqid = 0;
memset(argnfs4.argarray.argarray_val[FSAL_TRUNCATE_STATELESS_IDX_OP_SETATTR].
nfs_argop4_u.opsetattr.stateid.other, 0, 12);
resnfs4.resarray.resarray_val[FSAL_TRUNCATE_STATELESS_IDX_OP_GETATTR].nfs_resop4_u.
opgetattr.GETATTR4res_u.resok4.obj_attributes.attrmask.bitmap4_val = bitmap_res;
resnfs4.resarray.resarray_val[FSAL_TRUNCATE_STATELESS_IDX_OP_GETATTR].nfs_resop4_u.
opgetattr.GETATTR4res_u.resok4.obj_attributes.attrmask.bitmap4_len = 2;
resnfs4.resarray.resarray_val[FSAL_TRUNCATE_STATELESS_IDX_OP_GETATTR].nfs_resop4_u.
opgetattr.GETATTR4res_u.resok4.obj_attributes.attr_vals.attrlist4_val =
(char *)&fattr_internal;
resnfs4.resarray.resarray_val[FSAL_TRUNCATE_STATELESS_IDX_OP_GETATTR].nfs_resop4_u.
opgetattr.GETATTR4res_u.resok4.obj_attributes.attr_vals.attrlist4_len =
sizeof(fattr_internal);
resnfs4.resarray.resarray_val[FSAL_TRUNCATE_STATELESS_IDX_OP_SETATTR].nfs_resop4_u.
opsetattr.attrsset.bitmap4_val = bitmap_set;
resnfs4.resarray.resarray_val[FSAL_TRUNCATE_STATELESS_IDX_OP_SETATTR].nfs_resop4_u.
opsetattr.attrsset.bitmap4_len = 2;
TakeTokenFSCall();
COMPOUNDV4_EXECUTE(p_context, argnfs4, resnfs4, rc);
if(rc != RPC_SUCCESS)
{
ReleaseTokenFSCall();
Return(ERR_FSAL_IO, 0, INDEX_FSAL_truncate);
}
ReleaseTokenFSCall();
if(resnfs4.status != NFS4_OK)
return fsal_internal_proxy_error_convert(resnfs4.status, INDEX_FSAL_truncate);
/* >> interpret error code << */
/* >> Optionnaly retrieve post op attributes
* If your filesystem truncate call can't return them,
* you can proceed like this : <<
*/
if(object_attributes)
{
if(nfs4_Fattr_To_FSAL_attr(object_attributes,
&resnfs4.resarray.resarray_val
[FSAL_TRUNCATE_STATELESS_IDX_OP_GETATTR].
nfs_resop4_u.opgetattr.GETATTR4res_u.resok4.
obj_attributes) != 1)
{
FSAL_CLEAR_MASK(object_attributes->asked_attributes);
FSAL_SET_MASK(object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_truncate);
}
}
/* No error occured */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_truncate);
} /* FSAL_proxy_truncate_stateless */
fsal_status_t LUSTREFSAL_unlink(fsal_handle_t * p_parent_directory_handle, /* IN */
fsal_name_t * p_object_name, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_attrib_list_t * p_parent_directory_attributes /* [IN/OUT ] */
)
{
fsal_status_t status;
int rc, errsv;
struct stat buffstat, buffstat_parent;
fsal_path_t fsalpath;
/* sanity checks. */
if(!p_parent_directory_handle || !p_context || !p_object_name)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_unlink);
/* build the FID path */
status = fsal_internal_Handle2FidPath(p_context, p_parent_directory_handle, &fsalpath);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_unlink);
/* get directory metadata */
TakeTokenFSCall();
rc = lstat(fsalpath.path, &buffstat_parent);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
{
if(errsv == ENOENT)
Return(ERR_FSAL_STALE, errsv, INDEX_FSAL_unlink);
else
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_unlink);
}
/* build the child path */
status = fsal_internal_appendNameToPath(&fsalpath, p_object_name);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_unlink);
/* get file metadata */
TakeTokenFSCall();
rc = lstat(fsalpath.path, &buffstat);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_unlink);
/* check access rights */
/* Sticky bit on the directory => the user who wants to delete the file must own it or its parent dir */
if((buffstat_parent.st_mode & S_ISVTX)
&& buffstat_parent.st_uid != p_context->credential.user
&& buffstat.st_uid != p_context->credential.user && p_context->credential.user != 0)
{
Return(ERR_FSAL_ACCESS, 0, INDEX_FSAL_unlink);
}
/* client must be able to lookup the parent directory and modify it */
status =
fsal_internal_testAccess(p_context, FSAL_W_OK | FSAL_X_OK, &buffstat_parent, NULL);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_unlink);
/******************************
* DELETE FROM THE FILESYSTEM *
******************************/
TakeTokenFSCall();
/* If the object to delete is a directory, use 'rmdir' to delete the object, else use 'unlink' */
rc = (S_ISDIR(buffstat.st_mode)) ? rmdir(fsalpath.path) : unlink(fsalpath.path);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_unlink);
/***********************
* FILL THE ATTRIBUTES *
***********************/
if(p_parent_directory_attributes)
{
status =
LUSTREFSAL_getattrs(p_parent_directory_handle, p_context,
p_parent_directory_attributes);
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_parent_directory_attributes->asked_attributes);
FSAL_SET_MASK(p_parent_directory_attributes->asked_attributes,
FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_unlink);
}
/**
* 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);
}
