/**
* 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);
}
/**
* 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);
}
/**
* 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);
}
/**
* FSAL_lookup :
* Looks up for an object into a directory.
*
* Note : if parent handle and filename are NULL,
* this retrieves root's handle.
*
* \param parent_directory_handle (input)
* Handle of the parent directory to search the object in.
* \param filename (input)
* The name of the object to find.
* \param p_context (input)
* Authentication context for the operation (user,...).
* \param object_handle (output)
* The handle of the object corresponding to filename.
* \param object_attributes (optional input/output)
* Pointer to the attributes of the object we found.
* 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).
* It can be NULL (increases performances).
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - ERR_FSAL_STALE (parent_directory_handle does not address an existing object)
* - ERR_FSAL_NOTDIR (parent_directory_handle does not address a directory)
* - ERR_FSAL_NOENT (the object designated by p_filename does not exist)
* - ERR_FSAL_XDEV (tried to operate a lookup on a filesystem junction.
* Use FSAL_lookupJunction instead)
* - ERR_FSAL_FAULT (a NULL pointer was passed as mandatory argument)
* - Other error codes can be returned :
* ERR_FSAL_ACCESS, ERR_FSAL_IO, ...
*
*/
fsal_status_t CEPHFSAL_lookup(fsal_handle_t * extparent,
fsal_name_t * filename,
fsal_op_context_t * extcontext,
fsal_handle_t * exthandle,
fsal_attrib_list_t * object_attributes)
{
int rc;
struct stat st;
fsal_status_t status;
cephfsal_handle_t* parent = (cephfsal_handle_t*) extparent;
cephfsal_op_context_t* context = (cephfsal_op_context_t*) extcontext;
cephfsal_handle_t* handle = (cephfsal_handle_t*) exthandle;
char str[FSAL_MAX_NAME_LEN+1];
struct ceph_mount_info *cmount = context->export_context->cmount;
/* sanity checks
* note : object_attributes is optionnal
* parent_directory_handle may be null for getting FS root.
*/
if(!handle || !context)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_lookup);
memset(handle, 0, sizeof(cephfsal_handle_t));
/* retrieves root handle */
if(!parent)
{
/* check that filename is NULL,
* else, parent should not
* be NULL.
*/
if(filename != NULL)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_lookup);
/* Ceph seems to have a constant identifying the root inode.
Possible source of bugs, so check here if trouble */
VINODE(handle).ino.val = CEPH_INO_ROOT;
VINODE(handle).snapid.val = CEPH_NOSNAP;
if(object_attributes)
{
status = CEPHFSAL_getattrs(exthandle, extcontext, 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);
}
}
}
else /* this is a real lookup(parent, name) */
{
/* the filename should not be null */
if(filename == NULL)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_lookup);
FSAL_name2str(filename, str, FSAL_MAX_NAME_LEN);
/* Ceph returns POSIX errors, so let's use them */
rc = ceph_ll_lookup(cmount,
VINODE(parent), str, &st,
FSAL_OP_CONTEXT_TO_UID(context),
FSAL_OP_CONTEXT_TO_GID(context));
if(rc)
{
Return(posix2fsal_error(rc), 0, INDEX_FSAL_lookup);
}
rc = stat2fsal_fh(cmount, &st, handle);
if (rc < 0)
Return(posix2fsal_error(rc), 0, INDEX_FSAL_create);
if(object_attributes)
{
/* 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_lookup);
}
}
}
/* lookup complete ! */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_lookup);
}
/**
* FSAL_test_access_default :
* Tests whether the user identified by the p_context structure
* can access the object as indicated by the access_type parameter.
* This function tests access rights using cached attributes
* given as parameter (no calls to filesystem).
* Thus, it cannot test FSAL_F_OK flag, and asking such a flag
* will result in a ERR_FSAL_INVAL error.
*
* \param p_context (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 (mandatory input):
* The cached attributes for the object to test rights on.
* The following attributes MUST be filled :
* owner, group, mode, ACLs.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error, permission granted)
* - ERR_FSAL_ACCESS (object permissions doesn't fit asked access type)
* - ERR_FSAL_INVAL (FSAL_test_access is not able to test such a permission)
* - ERR_FSAL_FAULT (a NULL pointer was passed as mandatory argument)
* - Another error code if an error occured.
*/
fsal_status_t FSAL_test_access_default(fsal_op_context_t * p_context, /* IN */
fsal_accessflags_t access_type, /* IN */
fsal_attrib_list_t * object_attributes /* IN */
)
{
fsal_accessflags_t missing_access;
int is_grp;
fsal_count_t i;
gid_t * alt_groups;
fsal_count_t nb_alt_groups;
/* sanity checks. */
if(!object_attributes || !p_context)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_test_access);
/* If the FSAL_F_OK flag is set, returns ERR INVAL */
if(access_type & FSAL_F_OK)
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_test_access);
/* ----- here is a code sample for this function ---- */
/* test root access */
if(FSAL_OP_CONTEXT_TO_UID(p_context) == 0)
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_test_access);
/* unsatisfied permissions */
missing_access = access_type;
/* Test if file belongs to user. */
if(FSAL_OP_CONTEXT_TO_UID(p_context) == object_attributes->owner)
{
if(object_attributes->mode & FSAL_MODE_RUSR)
missing_access &= ~FSAL_R_OK;
if(object_attributes->mode & FSAL_MODE_WUSR)
missing_access &= ~FSAL_W_OK;
if(object_attributes->mode & FSAL_MODE_XUSR)
missing_access &= ~FSAL_X_OK;
if(missing_access == 0)
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_test_access);
else
Return(ERR_FSAL_ACCESS, 0, INDEX_FSAL_test_access);
}
/* Test if the file belongs to user's group. */
is_grp = (FSAL_OP_CONTEXT_TO_GID(p_context) == object_attributes->group);
if(!is_grp && FSAL_OP_CONTEXT_TO_ALT_GROUPS(p_context) != NULL)
{
nb_alt_groups = FSAL_OP_CONTEXT_TO_NBGROUPS(p_context);
alt_groups = FSAL_OP_CONTEXT_TO_ALT_GROUPS(p_context);
/* Test if file belongs to user's alt groups */
for(i = 0; i < nb_alt_groups; i++)
{
is_grp = (alt_groups[i] == object_attributes->group);
if(is_grp)
break;
}
}
/* finally apply group rights */
if(is_grp)
{
if(object_attributes->mode & FSAL_MODE_RGRP)
missing_access &= ~FSAL_R_OK;
if(object_attributes->mode & FSAL_MODE_WGRP)
missing_access &= ~FSAL_W_OK;
if(object_attributes->mode & FSAL_MODE_XGRP)
missing_access &= ~FSAL_X_OK;
if(missing_access == 0)
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_test_access);
else
Return(ERR_FSAL_ACCESS, 0, INDEX_FSAL_test_access);
}
/* test other perms */
if(object_attributes->mode & FSAL_MODE_ROTH)
missing_access &= ~FSAL_R_OK;
if(object_attributes->mode & FSAL_MODE_WOTH)
missing_access &= ~FSAL_W_OK;
if(object_attributes->mode & FSAL_MODE_XOTH)
missing_access &= ~FSAL_X_OK;
/** @todo: ACLs. */
if(missing_access == 0)
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_test_access);
else
Return(ERR_FSAL_ACCESS, 0, INDEX_FSAL_test_access);
}
/**
* FSAL_test_setattr_access_default :
* test if a client identified by cred can access setattr on the object
* knowing its attributes and parent's attributes.
* The following fields of the object_attributes structures MUST be filled :
* acls (if supported), mode, owner, group.
* This doesn't make any call to the filesystem,
* as a result, this doesn't ensure that the file exists, nor that
* the permissions given as parameters are the actual file permissions :
* this must be ensured by the cache_inode layer, using FSAL_getattrs,
* for example.
*
* \param cred (in zfsfsal_cred_t *) user's identifier.
* \param candidate_attributes the attributes we want to set on the object
* \param object_attributes (in fsal_attrib_list_t *) the cached attributes
* for the object.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - ERR_FSAL_ACCESS (Permission denied)
* - ERR_FSAL_FAULT (null pointer parameter)
* - ERR_FSAL_INVAL (missing attributes : mode, group, user,...)
* - ERR_FSAL_SERVERFAULT (unexpected error)
*/
fsal_status_t FSAL_setattr_access_default(fsal_op_context_t * p_context, /* IN */
fsal_attrib_list_t * candidate_attributes, /* IN */
fsal_attrib_list_t * object_attributes /* IN */
)
{
fsal_status_t fsal_status;
int in_grp;
int i;
fsal_count_t nb_alt_groups;
gid_t * alt_groups;
in_grp = 0;
/*
* CHMOD
* */
/* We just ignore symlinks. */
if(FSAL_TEST_MASK(candidate_attributes->asked_attributes, FSAL_ATTR_MODE)
&& (object_attributes->type != FSAL_TYPE_LNK))
{
/* User must be root or owner of the file */
if( (FSAL_OP_CONTEXT_TO_UID(p_context) != 0)
&& (FSAL_OP_CONTEXT_TO_UID(p_context) =! object_attributes->owner) )
Return(ERR_FSAL_ACCESS, 0, INDEX_FSAL_setattr_access);
}
/*
* CHOWN
* */
if(FSAL_TEST_MASK(candidate_attributes->asked_attributes, FSAL_ATTR_OWNER))
{
/* User must be root or (be the owner and the user he wants to set) */
if( (FSAL_OP_CONTEXT_TO_UID(p_context) != 0)
&& ( ( FSAL_OP_CONTEXT_TO_UID(p_context) != object_attributes->owner )
|| ( FSAL_OP_CONTEXT_TO_UID(p_context) != candidate_attributes->owner ) ) )
Return(ERR_FSAL_ACCESS, 0, INDEX_FSAL_setattr_access);
}
if(FSAL_TEST_MASK(candidate_attributes->asked_attributes, FSAL_ATTR_GROUP))
{
/* User must ( be root or owner ) */
if( (FSAL_OP_CONTEXT_TO_UID(p_context) != 0) && (FSAL_OP_CONTEXT_TO_UID(p_context) != object_attributes->owner) )
Return(ERR_FSAL_ACCESS, 0, INDEX_FSAL_setattr_access);
/* He must also be in the group he wants to set */
in_grp = ( FSAL_OP_CONTEXT_TO_GID(p_context) == candidate_attributes->group );
if(!in_grp && FSAL_OP_CONTEXT_TO_ALT_GROUPS(p_context) != NULL)
{
nb_alt_groups = FSAL_OP_CONTEXT_TO_NBGROUPS(p_context);
alt_groups = FSAL_OP_CONTEXT_TO_ALT_GROUPS(p_context);
/* Test user's alt groups */
for(i = 0; i < nb_alt_groups; i++)
{
in_grp = (alt_groups[i] == object_attributes->group);
if(in_grp)
break;
}
}
if(!in_grp)
Return(ERR_FSAL_ACCESS, 0, INDEX_FSAL_setattr_access);
}
/*
* UTIME
* */
/* Is it allowed to change time? */
if(FSAL_TEST_MASK(candidate_attributes->asked_attributes,
FSAL_ATTR_ATIME | FSAL_ATTR_CREATION | FSAL_ATTR_CTIME | FSAL_ATTR_MTIME)
&& !global_fs_info.cansettime)
Return(ERR_FSAL_ACCESS, 0, INDEX_FSAL_setattr_access);
/* Atime: user must be owner or be root or have read access */
if( FSAL_TEST_MASK(candidate_attributes->asked_attributes, FSAL_ATTR_ATIME)
&& (FSAL_OP_CONTEXT_TO_UID(p_context) != 0)
&& (FSAL_OP_CONTEXT_TO_UID(p_context) != object_attributes->owner))
{
fsal_status = FSAL_test_access_default(p_context, FSAL_R_OK, object_attributes);
if(FSAL_IS_ERROR(fsal_status))
Return(ERR_FSAL_ACCESS, 0, INDEX_FSAL_setattr_access);
}
/* Mtime: user must be owner or be root or have write access */
if( FSAL_TEST_MASK(candidate_attributes->asked_attributes, FSAL_ATTR_MTIME)
&& (FSAL_OP_CONTEXT_TO_UID(p_context) != 0)
&& (FSAL_OP_CONTEXT_TO_UID(p_context) != object_attributes->owner))
{
fsal_status = FSAL_test_access_default(p_context, FSAL_W_OK, object_attributes);
if(FSAL_IS_ERROR(fsal_status))
Return(ERR_FSAL_ACCESS, 0, INDEX_FSAL_setattr_access);
}
/* If this point is reached, then access is granted. */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_setattr_access);
} /* FSAL_test_setattr_access */
/**
*
* MFSL_mkdir : posts an asynchronous mkdir and sets the cached attributes in return.
*
* Posts an asynchronous setattr and sets the cached attributes in return.
* If an object is not asynchronous, then the content of object attributes structure for result will be used to populate it.
*
* @param target_handle [IN] mfsl object to be operated on (object to be hard linked).
* @param dir_handle [IN] mfsl object to be operated on (destination directory for the link).
* @param p_context [IN] associated fsal context
* @param p_mfsl_context [INOUT] associated mfsl context
* @param attrib_set [IN] attributes to be set
* @param tgt_attributes [INOUT] resulting attributes for target
* @param dir_attributes [INOUT] resulting attributes for directory
*
* @return the same as FSAL_link
*/
fsal_status_t MFSL_mkdir(mfsl_object_t * parent_directory_handle, /* IN */
fsal_name_t * p_dirname, /* IN */
fsal_op_context_t * p_context, /* IN */
mfsl_context_t * p_mfsl_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
mfsl_object_t * object_handle, /* OUT */
fsal_attrib_list_t * object_attributes, /* [ IN/OUT ] */
fsal_attrib_list_t * parent_attributes /* IN */ )
{
fsal_status_t fsal_status;
mfsl_async_op_desc_t *pasyncopdesc = NULL;
mfsl_object_specific_data_t *newdir_pasyncdata = NULL;
mfsl_object_t *pnewdir_handle = NULL;
mfsl_precreated_object_t *pprecreated = NULL;
fsal_status = MFSAL_mkdir_check_perms(parent_directory_handle,
p_dirname,
p_context, p_mfsl_context, parent_attributes);
if(FSAL_IS_ERROR(fsal_status))
return fsal_status;
P(p_mfsl_context->lock);
GetFromPool(pasyncopdesc, &p_mfsl_context->pool_async_op, mfsl_async_op_desc_t);
GetFromPool(newdir_pasyncdata, &p_mfsl_context->pool_spec_data, mfsl_object_specific_data_t);
V(p_mfsl_context->lock);
if(pasyncopdesc == NULL)
MFSL_return(ERR_FSAL_INVAL, 0);
if(gettimeofday(&pasyncopdesc->op_time, NULL) != 0)
{
/* Could'not get time of day... Stopping, this may need a major failure */
LogMajor(COMPONENT_MFSL, "MFSL_link: cannot get time of day... exiting");
exit(1);
}
/* Now get a pre-allocated directory from the synclet data */
P(p_mfsl_context->lock);
GetFromPool(pprecreated, &p_mfsl_context->pool_dirs, mfsl_precreated_object_t);
V(p_mfsl_context->lock);
pnewdir_handle = &(pprecreated->mobject);
LogDebug(COMPONENT_MFSL, "Creating asyncop %p",
pasyncopdesc);
pasyncopdesc->op_type = MFSL_ASYNC_OP_MKDIR;
pasyncopdesc->op_args.mkdir.pmfsl_obj_dirdest = parent_directory_handle;
pasyncopdesc->op_args.mkdir.precreate_name = pprecreated->name;
pasyncopdesc->op_args.mkdir.dirname = *p_dirname;
pasyncopdesc->op_args.mkdir.mode = accessmode;
pasyncopdesc->op_args.mkdir.owner = FSAL_OP_CONTEXT_TO_UID(p_context);
pasyncopdesc->op_args.mkdir.group = FSAL_OP_CONTEXT_TO_GID(p_context);
pasyncopdesc->op_res.mkdir.attr.asked_attributes = object_attributes->asked_attributes;
pasyncopdesc->op_res.mkdir.attr.supported_attributes =
object_attributes->supported_attributes;
if(FSAL_IS_ERROR(fsal_status))
return fsal_status;
pasyncopdesc->op_func = MFSL_mkdir_async_op;
//pasyncopdesc->fsal_op_context = p_context ;
pasyncopdesc->fsal_op_context =
synclet_data[pasyncopdesc->related_synclet_index].root_fsal_context;
pasyncopdesc->ptr_mfsl_context = (caddr_t) p_mfsl_context;
fsal_status = MFSL_async_post(pasyncopdesc);
if(FSAL_IS_ERROR(fsal_status))
return fsal_status;
/* Update the asynchronous metadata */
newdir_pasyncdata->async_attr = pprecreated->attr;
newdir_pasyncdata->async_attr.type = FSAL_TYPE_DIR;
newdir_pasyncdata->async_attr.filesize = DEV_BSIZE;
newdir_pasyncdata->async_attr.spaceused = DEV_BSIZE;
newdir_pasyncdata->async_attr.numlinks = 2;
newdir_pasyncdata->async_attr.owner = pasyncopdesc->op_args.mkdir.owner;
newdir_pasyncdata->async_attr.group = pasyncopdesc->op_args.mkdir.group;
newdir_pasyncdata->async_attr.ctime.seconds = pasyncopdesc->op_time.tv_sec;
newdir_pasyncdata->async_attr.ctime.nseconds = pasyncopdesc->op_time.tv_usec; /** @todo: there may be a coefficient to be applied here */
newdir_pasyncdata->deleted = FALSE;
if(!mfsl_async_set_specdata(pnewdir_handle, newdir_pasyncdata))
MFSL_return(ERR_FSAL_SERVERFAULT, 0);
/* Return the correct attributes */
*object_attributes = newdir_pasyncdata->async_attr;
*object_handle = pprecreated->mobject;
object_handle->health = MFSL_ASYNC_NEVER_SYNCED;
/* Do not forget that the parent directory becomes asynchronous too */
parent_directory_handle->health = MFSL_ASYNC_ASYNCHRONOUS;
MFSL_return(ERR_FSAL_NO_ERROR, 0);
} /* MFSL_mkdir */
fsal_status_t CEPHFSAL_setattrs(fsal_handle_t * exthandle,
fsal_op_context_t * extcontext,
fsal_attrib_list_t * attrib_set,
fsal_attrib_list_t * object_attributes)
{
cephfsal_handle_t* filehandle = (cephfsal_handle_t*) exthandle;
cephfsal_op_context_t* context = (cephfsal_op_context_t*) extcontext;
struct stat st;
fsal_attrib_list_t attrs;
int rc, mask=0;
int uid = FSAL_OP_CONTEXT_TO_UID(context);
int gid = FSAL_OP_CONTEXT_TO_GID(context);
/* sanity checks.
* note : object_attributes is optional.
*/
if(!filehandle || !context || !attrib_set)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_setattrs);
/* local copy of attributes */
attrs = *attrib_set;
/* 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);
}
/* Build flags and struct stat */
if(FSAL_TEST_MASK(attrs.asked_attributes, FSAL_ATTR_MODE))
{
mask |= CEPH_SETATTR_MODE;
st.st_mode = fsal2unix_mode(attrs.mode);
}
if(FSAL_TEST_MASK(attrs.asked_attributes, FSAL_ATTR_OWNER))
{
mask |= CEPH_SETATTR_UID;
st.st_uid = attrs.owner;
}
if(FSAL_TEST_MASK(attrs.asked_attributes, FSAL_ATTR_GROUP))
{
mask |= CEPH_SETATTR_UID;
st.st_gid = attrs.group;
}
if(FSAL_TEST_MASK(attrs.asked_attributes, FSAL_ATTR_ATIME))
{
mask |= CEPH_SETATTR_ATIME;
st.st_atime = attrs.atime.seconds;
}
if (FSAL_TEST_MASK(attrs.asked_attributes, FSAL_ATTR_MTIME))
{
mask |= CEPH_SETATTR_MTIME;
st.st_mtime = attrs.mtime.seconds;
}
if (FSAL_TEST_MASK(attrs.asked_attributes, FSAL_ATTR_CTIME))
{
mask |= CEPH_SETATTR_CTIME;
st.st_ctime = attrs.ctime.seconds;
}
TakeTokenFSCall();
rc = ceph_ll_setattr(context->export_context->cmount, VINODE(filehandle),
&st, mask, uid, gid);
ReleaseTokenFSCall();
if (rc < 0)
Return(posix2fsal_error(rc), 0, INDEX_FSAL_getattrs);
if(object_attributes)
{
fsal_status_t status;
status = CEPHFSAL_getattrs(exthandle, extcontext, 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_status_t CEPHFSAL_rename(fsal_handle_t * extold_parent,
fsal_name_t * old_name,
fsal_handle_t * extnew_parent,
fsal_name_t * new_name,
fsal_op_context_t * extcontext,
fsal_attrib_list_t * src_dir_attributes,
fsal_attrib_list_t * tgt_dir_attributes)
{
int rc;
cephfsal_handle_t* old_parent = (cephfsal_handle_t*) extold_parent;
cephfsal_handle_t* new_parent = (cephfsal_handle_t*) extnew_parent;
cephfsal_op_context_t* context = (cephfsal_op_context_t*) extcontext;
char oldstr[FSAL_MAX_NAME_LEN+1];
char newstr[FSAL_MAX_NAME_LEN+1];
int uid = FSAL_OP_CONTEXT_TO_UID(context);
int gid = FSAL_OP_CONTEXT_TO_GID(context);
/* sanity checks.
* note : src/tgt_dir_attributes are optional.
*/
if(!old_parent || !new_parent || !old_name || !new_name || !context)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_rename);
if(src_dir_attributes)
{
fsal_status_t status =
CEPHFSAL_getattrs(extold_parent, extcontext, src_dir_attributes);
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(src_dir_attributes->asked_attributes);
FSAL_SET_MASK(src_dir_attributes->asked_attributes,
FSAL_ATTR_RDATTR_ERR);
}
}
if(tgt_dir_attributes)
{
fsal_status_t status;
/* optimization when src=tgt : */
if(!CEPHFSAL_handlecmp(extold_parent, extnew_parent, &status)
&& src_dir_attributes)
{
/* If source dir = target dir, we just copy the attributes.
* to avoid doing another getattr.
*/
(*tgt_dir_attributes) = (*src_dir_attributes);
}
else
{
status = CEPHFSAL_getattrs(extnew_parent, extcontext,
tgt_dir_attributes);
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(tgt_dir_attributes->asked_attributes);
FSAL_SET_MASK(tgt_dir_attributes->asked_attributes,
FSAL_ATTR_RDATTR_ERR);
}
}
}
FSAL_name2str(old_name, oldstr, FSAL_MAX_NAME_LEN);
FSAL_name2str(new_name, newstr, FSAL_MAX_NAME_LEN);
rc = ceph_ll_rename(context->export_context->cmount,
VINODE(old_parent), oldstr,
VINODE(new_parent), newstr,
uid, gid);
if (rc < 0)
Return(posix2fsal_error(rc), 0, INDEX_FSAL_rename);
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_rename);
}
/**
* FSAL_create:
* Create a regular file.
*
* \param extparent (input):
* Handle of the parent directory where the file is to be created.
* \param filename (input):
* Pointer to the name of the file to be created.
* \param context (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 CEPHFSAL_create(fsal_handle_t * extparent,
fsal_name_t * filename,
fsal_op_context_t * extcontext,
fsal_accessmode_t accessmode,
fsal_handle_t * object_handle,
fsal_attrib_list_t * object_attributes)
{
int rc;
mode_t mode;
struct Fh *fd;
struct stat st;
char strname[FSAL_MAX_NAME_LEN];
cephfsal_handle_t* parent = (cephfsal_handle_t*) extparent;
cephfsal_op_context_t* context = (cephfsal_op_context_t*) extcontext;
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 : object_attributes is optional.
*/
if(!parent || !context || !object_handle || !filename)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_create);
memset(object_handle, 0, sizeof(cephfsal_handle_t));
mode = fsal2unix_mode(accessmode);
mode = mode & ~global_fs_info.umask;
FSAL_name2str(filename, strname, FSAL_MAX_NAME_LEN);
TakeTokenFSCall();
rc = ceph_ll_create(cmount, VINODE(parent), strname,
mode, 0, &fd, &st, uid, gid);
ceph_ll_close(cmount, fd);
ReleaseTokenFSCall();
if (rc < 0)
Return(posix2fsal_error(rc), 0, INDEX_FSAL_create);
rc = stat2fsal_fh(cmount,
&st,
(cephfsal_handle_t*) object_handle);
if (rc < 0)
Return(posix2fsal_error(rc), 0, INDEX_FSAL_create);
if(object_attributes)
{
fsal_status_t status;
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_create);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_create);
}
