int _9p_auth( _9p_request_data_t * preq9p,
void * pworker_data,
u32 * plenout,
char * preply)
{
char * cursor = preq9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE ;
nfs_worker_data_t * pwkrdata = (nfs_worker_data_t *)pworker_data ;
u16 * msgtag = NULL ;
u32 * afid = NULL ;
u16 * uname_len = NULL ;
char * uname_str = NULL ;
u16 * aname_len = NULL ;
char * aname_str = NULL ;
u32 * n_aname = NULL ;
fsal_attrib_list_t fsalattr ;
u32 err = 0 ;
_9p_fid_t * pfid = NULL ;
exportlist_t * pexport = NULL;
unsigned int found = FALSE;
cache_inode_status_t cache_status ;
cache_inode_fsal_data_t fsdata ;
if ( !preq9p || !pworker_data || !plenout || !preply )
return -1 ;
/* Get data */
_9p_getptr( cursor, msgtag, u16 ) ;
_9p_getptr( cursor, afid, u32 ) ;
_9p_getstr( cursor, uname_len, uname_str ) ;
_9p_getstr( cursor, aname_len, aname_str ) ;
_9p_getptr( cursor, n_aname, u32 ) ;
LogDebug( COMPONENT_9P, "TAUTH: tag=%u afid=%d uname='%.*s' aname='%.*s' n_uname=%d",
(u32)*msgtag, *afid, (int)*uname_len, uname_str, (int)*aname_len, aname_str, *n_aname ) ;
/*
* Find the export for the aname (using as well Path or Tag )
*/
for( pexport = nfs_param.pexportlist; pexport != NULL;
pexport = pexport->next)
{
if(aname_str[0] != '/')
{
/* The input value may be a "Tag" */
if(!strncmp(aname_str, pexport->FS_tag, strlen( pexport->FS_tag ) ) )
{
found = TRUE ;
break;
}
}
else
{
if(!strncmp(aname_str, pexport->fullpath, strlen( pexport->fullpath ) ) )
{
found = TRUE ;
break;
}
}
} /* for */
/* Did we find something ? */
if( found == FALSE )
return _9p_rerror( preq9p, msgtag, ENOENT, plenout, preply ) ;
if( *afid >= _9P_FID_PER_CONN )
return _9p_rerror( preq9p, msgtag, ERANGE, plenout, preply ) ;
/* Set pexport and fid id in fid */
pfid= &preq9p->pconn->fids[*afid] ;
pfid->pexport = pexport ;
pfid->fid = *afid ;
memcpy( &pfid->fsal_op_context, &pwkrdata->thread_fsal_context, sizeof( fsal_op_context_t ) ) ;
/* Is user name provided as a string or as an uid ? */
if( *uname_len != 0 )
{
/* Build the fid creds */
if( ( err = _9p_tools_get_fsal_op_context_by_name( *uname_len, uname_str, pfid ) ) != 0 )
return _9p_rerror( preq9p, msgtag, -err, plenout, preply ) ;
}
else
{
/* Build the fid creds */
if( ( err = _9p_tools_get_fsal_op_context_by_uid( *n_aname, pfid ) ) != 0 )
return _9p_rerror( preq9p, msgtag, -err, plenout, preply ) ;
}
/* Get the related pentry */
fsdata.fh_desc.start = (char *)pexport->proot_handle ;
fsdata.fh_desc.len = sizeof( fsal_handle_t ) ;
pfid->pentry = cache_inode_get( &fsdata,
&fsalattr,
&pfid->fsal_op_context,
NULL,
&cache_status ) ;
if( pfid->pentry == NULL )
return _9p_rerror( preq9p, msgtag, _9p_tools_errno( cache_status ), plenout, preply ) ;
/* Compute the qid */
pfid->qid.type = _9P_QTDIR ;
pfid->qid.version = 0 ; /* No cache, we want the client to stay synchronous with the server */
pfid->qid.path = fsalattr.fileid ;
/* Build the reply */
_9p_setinitptr( cursor, preply, _9P_RATTACH ) ;
_9p_setptr( cursor, msgtag, u16 ) ;
_9p_setqid( cursor, pfid->qid ) ;
_9p_setendptr( cursor, preply ) ;
_9p_checkbound( cursor, preply, plenout ) ;
LogDebug( COMPONENT_9P, "RAUTH: tag=%u afid=%u qid=(type=%u,version=%u,path=%llu)",
*msgtag, *afid, (u32)pfid->qid.type, pfid->qid.version, (unsigned long long)pfid->qid.path ) ;
return 1 ;
}
int _9p_attach( _9p_request_data_t * preq9p,
void * pworker_data,
u32 * plenout,
char * preply)
{
char * cursor = preq9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE ;
nfs_worker_data_t * pwkrdata = (nfs_worker_data_t *)pworker_data ;
u16 * msgtag = NULL ;
u32 * fid = NULL ;
u32 * afid = NULL ;
u16 * uname_len = NULL ;
char * uname_str = NULL ;
u16 * aname_len = NULL ;
char * aname_str = NULL ;
u32 * n_aname = NULL ;
fsal_attrib_list_t fsalattr ;
int rc = 0 ;
u32 err = 0 ;
_9p_fid_t * pfid = NULL ;
exportlist_t * pexport = NULL;
unsigned int found = FALSE;
cache_inode_status_t cache_status ;
cache_inode_fsal_data_t fsdata ;
if ( !preq9p || !pworker_data || !plenout || !preply )
return -1 ;
/* Get data */
_9p_getptr( cursor, msgtag, u16 ) ;
_9p_getptr( cursor, fid, u32 ) ;
_9p_getptr( cursor, afid, u32 ) ;
_9p_getstr( cursor, uname_len, uname_str ) ;
_9p_getstr( cursor, aname_len, aname_str ) ;
_9p_getptr( cursor, n_aname, u32 ) ;
LogDebug( COMPONENT_9P, "TATTACH: tag=%u fid=%u afid=%d uname='%.*s' aname='%.*s' n_uname=%d",
(u32)*msgtag, *fid, *afid, (int)*uname_len, uname_str, (int)*aname_len, aname_str, *n_aname ) ;
/*
* Find the export for the aname (using as well Path or Tag )
*/
for( pexport = nfs_param.pexportlist; pexport != NULL;
pexport = pexport->next)
{
if(aname_str[0] != '/')
{
/* The input value may be a "Tag" */
if(!strncmp(aname_str, pexport->FS_tag, strlen( pexport->FS_tag ) ) )
{
found = TRUE ;
break;
}
}
else
{
if(!strncmp(aname_str, pexport->fullpath, strlen( pexport->fullpath ) ) )
{
found = TRUE ;
break;
}
}
} /* for */
/* Did we find something ? */
if( found == FALSE )
{
err = ENOENT ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
if( *fid >= _9P_FID_PER_CONN )
{
err = ERANGE ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
/* Set pexport and fid id in fid */
pfid= &preq9p->pconn->fids[*fid] ;
pfid->pexport = pexport ;
pfid->fid = *fid ;
#ifdef _USE_SHARED_FSAL
/* At this step, the export entry is known and it's required to use the right fsalid */
FSAL_SetId( pexport->fsalid ) ;
memcpy( &pfid->fsal_op_context, &pwkrdata->thread_fsal_context[pexport->fsalid], sizeof( fsal_op_context_t ) ) ;
#else
memcpy( &pfid->fsal_op_context, &pwkrdata->thread_fsal_context, sizeof( fsal_op_context_t ) ) ;
#endif
/* Is user name provided as a string or as an uid ? */
if( *uname_len != 0 )
{
/* Build the fid creds */
if( ( err = _9p_tools_get_fsal_op_context_by_name( *uname_len, uname_str, pfid ) ) != 0 )
{
err = -err ; /* The returned value from 9p service functions is always negative is case of errors */
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
}
else
{
/* Build the fid creds */
if( ( err = _9p_tools_get_fsal_op_context_by_uid( *n_aname, pfid ) ) != 0 )
{
err = -err ; /* The returned value from 9p service functions is always negative is case of errors */
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
}
/* Get the related pentry */
memcpy( (char *)&fsdata.handle, (char *)pexport->proot_handle, sizeof( fsal_handle_t ) ) ;
fsdata.cookie = 0;
pfid->pentry = cache_inode_get( &fsdata,
pexport->cache_inode_policy,
&fsalattr,
pwkrdata->ht,
&pwkrdata->cache_inode_client,
&pfid->fsal_op_context,
&cache_status ) ;
if( pfid->pentry == NULL )
{
err = _9p_tools_errno( cache_status ) ; ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
/* Compute the qid */
pfid->qid.type = _9P_QTDIR ;
pfid->qid.version = 0 ; /* No cache, we want the client to stay synchronous with the server */
pfid->qid.path = fsalattr.fileid ;
/* Cache the attr */
_9p_tools_fsal_attr2stat( &fsalattr, &pfid->attr ) ;
/* Build the reply */
_9p_setinitptr( cursor, preply, _9P_RATTACH ) ;
_9p_setptr( cursor, msgtag, u16 ) ;
_9p_setqid( cursor, pfid->qid ) ;
_9p_setendptr( cursor, preply ) ;
_9p_checkbound( cursor, preply, plenout ) ;
LogDebug( COMPONENT_9P, "RATTACH: tag=%u fid=%u qid=(type=%u,version=%u,path=%llu)",
*msgtag, *fid, (u32)pfid->qid.type, pfid->qid.version, (unsigned long long)pfid->qid.path ) ;
return 1 ;
}
