int _9p_readlink(struct _9p_request_data *req9p, u32 *plenout, char *preply)
{
char *cursor = req9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE;
u16 *msgtag = NULL;
u32 *fid = NULL;
struct _9p_fid *pfid = NULL;
cache_inode_status_t cache_status;
struct gsh_buffdesc link_buffer = {.addr = NULL,
.len = 0
};
/* Get data */
_9p_getptr(cursor, msgtag, u16);
_9p_getptr(cursor, fid, u32);
LogDebug(COMPONENT_9P, "TREADLINK: tag=%u fid=%u", (u32) *msgtag,
*fid);
if (*fid >= _9P_FID_PER_CONN)
return _9p_rerror(req9p, msgtag, ERANGE, plenout, preply);
pfid = req9p->pconn->fids[*fid];
/* Check that it is a valid fid */
if (pfid == NULL || pfid->pentry == NULL) {
LogDebug(COMPONENT_9P, "request on invalid fid=%u", *fid);
return _9p_rerror(req9p, msgtag, EIO, plenout, preply);
}
_9p_init_opctx(pfid, req9p);
/* let's do the job */
cache_status =
cache_inode_readlink(pfid->pentry, &link_buffer);
if (cache_status != CACHE_INODE_SUCCESS)
return _9p_rerror(req9p, msgtag,
_9p_tools_errno(cache_status), plenout,
preply);
/* Build the reply */
_9p_setinitptr(cursor, preply, _9P_RREADLINK);
_9p_setptr(cursor, msgtag, u16);
_9p_setstr(cursor, link_buffer.len - 1, link_buffer.addr);
_9p_setendptr(cursor, preply);
_9p_checkbound(cursor, preply, plenout);
LogDebug(COMPONENT_9P, "RREADLINK: tag=%u fid=%u link=%s", *msgtag,
(u32) *fid, (char *) link_buffer.addr);
gsh_free(link_buffer.addr);
return 1;
}
int _9p_auth(struct _9p_request_data *req9p, void *worker_data,
u32 *plenout, char *preply)
{
char *cursor = req9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE;
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;
uint64_t fileid;
u32 err = 0;
struct _9p_fid *pfid = NULL;
struct gsh_export *exp;
exportlist_t *export = NULL;
cache_inode_status_t cache_status;
char exppath[MAXPATHLEN];
/* 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);
if (*afid >= _9P_FID_PER_CONN)
return _9p_rerror(req9p, worker_data, msgtag, ERANGE, plenout,
preply);
/*
* Find the export for the aname (using as well Path or Tag)
*/
snprintf(exppath, MAXPATHLEN, "%.*s", (int)*aname_len, aname_str);
if (exppath[0] == '/')
exp = get_gsh_export_by_path(exppath);
else
exp = get_gsh_export_by_tag(exppath);
/* Did we find something ? */
if (exp == NULL)
return _9p_rerror(req9p, worker_data, msgtag, ENOENT, plenout,
preply);
/* Set export and fid id in fid */
export = &exp->export;
int _9p_fsync(struct _9p_request_data *req9p, void *worker_data,
u32 *plenout, char *preply)
{
char *cursor = req9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE;
u16 *msgtag = NULL;
u32 *fid = NULL;
struct _9p_fid *pfid = NULL;
cache_inode_status_t cache_status = CACHE_INODE_SUCCESS;
/* Get data */
_9p_getptr(cursor, msgtag, u16);
_9p_getptr(cursor, fid, u32);
LogDebug(COMPONENT_9P, "TFSYNC: tag=%u fid=%u", (u32) *msgtag, *fid);
if (*fid >= _9P_FID_PER_CONN)
return _9p_rerror(req9p, worker_data, msgtag, ERANGE, plenout,
preply);
pfid = req9p->pconn->fids[*fid];
/* Check that it is a valid open file */
if (pfid == NULL || pfid->pentry == NULL) {
LogDebug(COMPONENT_9P, "request on invalid fid=%u", *fid);
return _9p_rerror(req9p, worker_data, msgtag, EIO, plenout,
preply);
}
cache_status =
cache_inode_commit(pfid->pentry,
0LL, /* start at beginning of file */
0LL, /* Mimic sync_file_range's behavior:
* count=0 means "whole file" */
&pfid->op_context);
if (cache_status != CACHE_INODE_SUCCESS)
return _9p_rerror(req9p, worker_data, msgtag,
_9p_tools_errno(cache_status), plenout,
preply);
/* Build the reply */
_9p_setinitptr(cursor, preply, _9P_RFSYNC);
_9p_setptr(cursor, msgtag, u16);
_9p_setendptr(cursor, preply);
_9p_checkbound(cursor, preply, plenout);
LogDebug(COMPONENT_9P, "RFSYNC: tag=%u fid=%u", (u32) *msgtag, *fid);
return 1;
}
int _9p_getlock(struct _9p_request_data *req9p, u32 *plenout, char *preply)
{
char *cursor = req9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE;
u16 *msgtag = NULL;
u32 *fid = NULL;
u8 *type = NULL;
u64 *start = NULL;
u64 *length = NULL;
u32 *proc_id = NULL;
u16 *client_id_len = NULL;
char *client_id_str = NULL;
/* struct _9p_fid * pfid = NULL ; */
/* Get data */
_9p_getptr(cursor, msgtag, u16);
_9p_getptr(cursor, fid, u32);
_9p_getptr(cursor, type, u8);
_9p_getptr(cursor, start, u64);
_9p_getptr(cursor, length, u64);
_9p_getptr(cursor, proc_id, u32);
_9p_getstr(cursor, client_id_len, client_id_str);
LogDebug(COMPONENT_9P,
"TGETLOCK: tag=%u fid=%u type=%u start=%llu length=%llu proc_id=%u client=%.*s",
(u32) *msgtag, *fid, *type, (unsigned long long) *start,
(unsigned long long)*length, *proc_id, *client_id_len,
client_id_str);
if (*fid >= _9P_FID_PER_CONN)
return _9p_rerror(req9p, msgtag, ERANGE, plenout, preply);
/* pfid = req9p->pconn->fids[*fid] ; */
/** @todo This function does nothing for the moment.
* Make it compliant with fcntl( F_GETLCK, ... */
/* Build the reply */
_9p_setinitptr(cursor, preply, _9P_RGETLOCK);
_9p_setptr(cursor, msgtag, u16);
_9p_setptr(cursor, type, u8);
_9p_setptr(cursor, start, u64);
_9p_setptr(cursor, length, u64);
_9p_setptr(cursor, proc_id, u32);
_9p_setstr(cursor, *client_id_len, client_id_str);
_9p_setendptr(cursor, preply);
_9p_checkbound(cursor, preply, plenout);
LogDebug(COMPONENT_9P,
"RGETLOCK: tag=%u fid=%u type=%u start=%llu length=%llu proc_id=%u client=%.*s",
(u32) *msgtag, *fid, *type, (unsigned long long) *start,
(unsigned long long)*length, *proc_id, *client_id_len,
client_id_str);
return 1;
}
int _9p_rename( _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 * dfid = NULL ;
u16 * name_len = NULL ;
char * name_str = NULL ;
int rc = 0 ;
u32 err = 0 ;
if ( !preq9p || !pworker_data || !plenout || !preply )
return -1 ;
/* Get data */
_9p_getptr( cursor, msgtag, u16 ) ;
_9p_getptr( cursor, fid, u32 ) ;
_9p_getptr( cursor, dfid, u32 ) ;
_9p_getstr( cursor, name_len, name_str ) ;
LogDebug( COMPONENT_9P, "TRENAME: tag=%u fid=%u dfid=%u", (u32)*msgtag, *fid, *dfid ) ;
if( *fid >= _9P_FID_PER_CONN )
{
err = ERANGE ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
err = ENOTSUP ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
return 1 ;
}
int _9p_remove( _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 ;
int rc = 0 ;
u32 err = 0 ;
if ( !preq9p || !pworker_data || !plenout || !preply )
return -1 ;
/* Get data */
_9p_getptr( cursor, msgtag, u16 ) ;
_9p_getptr( cursor, fid, u32 ) ;
LogDebug( COMPONENT_9P, "TREMOVE: tag=%u fid=%u", (u32)*msgtag, *fid ) ;
if( *fid >= _9P_FID_PER_CONN )
{
err = ERANGE ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
/* Not supported use TUNLINKAT instead */
err = ENOTSUP ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
return 1 ;
}
int _9p_not_2000L(struct _9p_request_data *req9p, u32 *plenout, char *preply)
{
char *msgdata = req9p->_9pmsg + _9P_HDR_SIZE;
u8 *pmsgtype = NULL;
u16 msgtag = 0;
/* Get message's type */
pmsgtype = (u8 *) msgdata;
LogEvent(COMPONENT_9P,
"(%u|%s) is not a 9P2000.L message, returning ENOTSUP",
*pmsgtype, _9pfuncdesc[*pmsgtype].funcname);
_9p_rerror(req9p, &msgtag, ENOTSUP, plenout, preply);
return -1;
} /* _9p_not_2000L */
/* Will disappear when all work will have been done */
int _9p_dummy( _9p_request_data_t * preq9p,
void * pworker_data,
u32 * plenout,
char * preply)
{
char * msgdata = preq9p->_9pmsg + _9P_HDR_SIZE ;
u8 * pmsgtype = NULL ;
u16 msgtag = 0 ;
int err = ENOTSUP ;
/* Get message's type */
pmsgtype = (u8 *)msgdata ;
LogEvent( COMPONENT_9P, "(%u|%s) not implemented yet, returning ENOTSUP", *pmsgtype, _9pfuncdesc[_9ptabindex[*pmsgtype]].funcname ) ;
_9p_rerror( preq9p, &msgtag, &err, plenout, preply ) ;
return -1 ;
} /* _9p_dummy */
int _9p_version( _9p_request_data_t * preq9p,
void * pworker_data,
u32 * plenout, char * preply)
{
char * cursor = preq9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE ;
u16 * msgtag = NULL ;
u32 * msize = NULL ;
u16 * version_len = NULL ;
char * version_str = NULL ;
if ( !preq9p || !plenout || !preply )
return -1 ;
/* Get data */
_9p_getptr( cursor, msgtag, u16 ) ;
_9p_getptr( cursor, msize, u32 ) ;
_9p_getstr( cursor, version_len, version_str ) ;
LogDebug( COMPONENT_9P, "TVERSION: tag=%u msize=%u version='%.*s'", (u32)*msgtag, *msize, (int)*version_len, version_str ) ;
if( strncmp( version_str, version_9p200l, *version_len ) )
{
LogEvent( COMPONENT_9P, "RVERSION: BAD VERSION" ) ;
return _9p_rerror( preq9p, msgtag, ENOENT, plenout, preply ) ;
}
/* Good version, build the reply */
_9p_setinitptr( cursor, preply, _9P_RVERSION ) ;
_9p_setptr( cursor, msgtag, u16 ) ;
_9p_setptr( cursor, msize, u32 ) ;
_9p_setstr( cursor, *version_len, version_str ) ;
_9p_setendptr( cursor, preply ) ;
_9p_checkbound( cursor, preply, plenout ) ;
LogDebug( COMPONENT_9P, "RVERSION: msize=%u version='%.*s'", *msize, (int)*version_len, version_str ) ;
return 1 ;
}
int _9p_not_2000L(struct _9p_request_data *req9p, u32 *plenout, char *preply)
{
char *msgdata = req9p->_9pmsg + _9P_HDR_SIZE;
u8 msgtype = 0;
u16 msgtag = 0;
char *funcname = "inval";
/* Get message's type */
msgtype = *(u8 *)msgdata;
/* TWSTAT is the last element in func_desc array, make sure
* we don't lookup past it */
if (msgtype <= _9P_TWSTAT)
funcname = _9pfuncdesc[msgtype].funcname;
LogEvent(COMPONENT_9P,
"(%u|%s) is not a 9P2000.L message, returning ENOTSUP",
msgtype, funcname);
_9p_rerror(req9p, &msgtag, ENOTSUP, plenout, preply);
return -1;
} /* _9p_not_2000L */
int _9p_symlink( _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 ;
u16 * name_len = NULL ;
char * name_str = NULL ;
u16 * linkcontent_len = NULL ;
char * linkcontent_str = NULL ;
u32 * gid = NULL ;
_9p_fid_t * pfid = NULL ;
_9p_qid_t qid_symlink ;
cache_entry_t * pentry_symlink = NULL ;
fsal_name_t symlink_name ;
fsal_attrib_list_t fsalattr ;
cache_inode_status_t cache_status ;
fsal_accessmode_t mode = 0777;
cache_inode_create_arg_t create_arg;
int rc = 0 ;
int err = 0 ;
if ( !preq9p || !pworker_data || !plenout || !preply )
return -1 ;
memset(&create_arg, 0, sizeof(create_arg));
/* Get data */
_9p_getptr( cursor, msgtag, u16 ) ;
_9p_getptr( cursor, fid, u32 ) ;
_9p_getstr( cursor, name_len, name_str ) ;
_9p_getstr( cursor, linkcontent_len, linkcontent_str ) ;
_9p_getptr( cursor, gid, u32 ) ;
LogDebug( COMPONENT_9P, "TSYMLINK: tag=%u fid=%u name=%.*s linkcontent=%.*s gid=%u",
(u32)*msgtag, *fid, *name_len, name_str, *linkcontent_len, linkcontent_str, *gid ) ;
if( *fid >= _9P_FID_PER_CONN )
{
err = ERANGE ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
pfid = &preq9p->pconn->fids[*fid] ;
snprintf( symlink_name.name, FSAL_MAX_NAME_LEN, "%.*s", *name_len, name_str ) ;
snprintf( create_arg.link_content.path, FSAL_MAX_PATH_LEN, "%.*s", *linkcontent_len, linkcontent_str ) ;
/* Let's do the job */
/* BUGAZOMEU: @todo : the gid parameter is not used yet, flags is not yet used */
if( ( pentry_symlink = cache_inode_create( pfid->pentry,
&symlink_name,
SYMBOLIC_LINK,
pfid->pexport->cache_inode_policy,
mode,
&create_arg,
&fsalattr,
pwkrdata->ht,
&pwkrdata->cache_inode_client,
&pfid->fsal_op_context,
&cache_status)) == NULL)
{
err = _9p_tools_errno( cache_status ) ; ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
/* Build the qid */
qid_symlink.type = _9P_QTSYMLINK ;
qid_symlink.version = 0 ;
qid_symlink.path = fsalattr.fileid ;
/* Build the reply */
_9p_setinitptr( cursor, preply, _9P_RSYMLINK ) ;
_9p_setptr( cursor, msgtag, u16 ) ;
_9p_setqid( cursor, qid_symlink ) ;
_9p_setendptr( cursor, preply ) ;
_9p_checkbound( cursor, preply, plenout ) ;
LogDebug( COMPONENT_9P,
"RSYMLINK: tag=%u fid=%u name=%.*s qid=(type=%u,version=%u,path=%llu)",
(u32)*msgtag, *fid, *name_len, name_str, qid_symlink.type, qid_symlink.version, (unsigned long long)qid_symlink.path ) ;
return 1 ;
}
int _9p_lopen( _9p_request_data_t * preq9p,
void * pworker_data,
u32 * plenout,
char * preply)
{
char * cursor = preq9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE ;
u16 * msgtag = NULL ;
u32 * fid = NULL ;
u32 * flags = NULL ;
cache_inode_status_t cache_status ;
fsal_openflags_t openflags = 0 ;
if( !preq9p || !pworker_data || !plenout || !preply )
return -1 ;
_9p_fid_t * pfid = NULL ;
/* Get data */
_9p_getptr( cursor, msgtag, u16 ) ;
_9p_getptr( cursor, fid, u32 ) ;
_9p_getptr( cursor, flags, u32 ) ;
LogDebug( COMPONENT_9P, "TLOPEN: tag=%u fid=%u flags=0x%x",
(u32)*msgtag, *fid, *flags ) ;
if( *fid >= _9P_FID_PER_CONN )
return _9p_rerror( preq9p, msgtag, ERANGE, plenout, preply ) ;
pfid = &preq9p->pconn->fids[*fid] ;
_9p_openflags2FSAL( flags, &openflags ) ;
if( pfid->pentry->type == REGULAR_FILE ) /** @todo: Maybe other types (FIFO, sOCKET,...) may require to be opened too */
{
if(cache_inode_open( pfid->pentry,
openflags,
&pfid->fsal_op_context,
0,
&cache_status) != CACHE_INODE_SUCCESS)
return _9p_rerror( preq9p, msgtag, _9p_tools_errno( cache_status ), plenout, preply ) ;
}
/* iounit = 0 by default */
pfid->specdata.iounit = 0 ;
/* Build the reply */
_9p_setinitptr( cursor, preply, _9P_RLOPEN ) ;
_9p_setptr( cursor, msgtag, u16 ) ;
_9p_setqid( cursor, pfid->qid ) ;
_9p_setptr( cursor, &pfid->specdata.iounit, u32 ) ;
_9p_setendptr( cursor, preply ) ;
_9p_checkbound( cursor, preply, plenout ) ;
LogDebug( COMPONENT_9P, "RLOPEN: tag=%u fid=%u qid=(type=%u,version=%u,path=%llu) iounit=%u",
*msgtag, *fid, (u32)pfid->qid.type, pfid->qid.version, (unsigned long long)pfid->qid.path, pfid->specdata.iounit ) ;
return 1 ;
}
int _9p_lcreate(struct _9p_request_data *req9p, u32 *plenout, char *preply)
{
char *cursor = req9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE;
u16 *msgtag = NULL;
u32 *fid = NULL;
u32 *flags = NULL;
u32 *mode = NULL;
u32 *gid = NULL;
u16 *name_len = NULL;
char *name_str = NULL;
struct _9p_fid *pfid = NULL;
struct _9p_qid qid_newfile;
u32 iounit = _9P_IOUNIT;
struct fsal_obj_handle *pentry_newfile = NULL;
char file_name[MAXNAMLEN+1];
fsal_status_t fsal_status;
fsal_openflags_t openflags = 0;
struct attrlist sattr;
fsal_verifier_t verifier;
enum fsal_create_mode createmode = FSAL_UNCHECKED;
/* Get data */
_9p_getptr(cursor, msgtag, u16);
_9p_getptr(cursor, fid, u32);
_9p_getstr(cursor, name_len, name_str);
_9p_getptr(cursor, flags, u32);
_9p_getptr(cursor, mode, u32);
_9p_getptr(cursor, gid, u32);
LogDebug(COMPONENT_9P,
"TLCREATE: tag=%u fid=%u name=%.*s flags=0%o mode=0%o gid=%u",
(u32) *msgtag, *fid, *name_len, name_str, *flags, *mode,
*gid);
if (*fid >= _9P_FID_PER_CONN)
return _9p_rerror(req9p, msgtag, ERANGE, plenout, preply);
pfid = req9p->pconn->fids[*fid];
/* Check that it is a valid fid */
if (pfid == NULL || pfid->pentry == NULL) {
LogDebug(COMPONENT_9P, "request on invalid fid=%u", *fid);
return _9p_rerror(req9p, msgtag, EIO, plenout, preply);
}
_9p_init_opctx(pfid, req9p);
if ((op_ctx->export_perms->options &
EXPORT_OPTION_WRITE_ACCESS) == 0)
return _9p_rerror(req9p, msgtag, EROFS, plenout, preply);
if (*name_len >= sizeof(file_name)) {
LogDebug(COMPONENT_9P, "request with name too long (%u)",
*name_len);
return _9p_rerror(req9p, msgtag, ENAMETOOLONG, plenout,
preply);
}
snprintf(file_name, sizeof(file_name), "%.*s", *name_len, name_str);
_9p_openflags2FSAL(flags, &openflags);
pfid->state->state_data.fid.share_access =
_9p_openflags_to_share_access(flags);
memset(&verifier, 0, sizeof(verifier));
memset(&sattr, 0, sizeof(sattr));
sattr.valid_mask = ATTR_MODE | ATTR_GROUP;
sattr.mode = *mode;
sattr.group = *gid;
if (*flags & 0x10) {
/* Filesize is already 0. */
sattr.valid_mask |= ATTR_SIZE;
}
if (*flags & 0x1000) {
/* If OEXCL, use FSAL_EXCLUSIVE_9P create mode
* so that we can pass the attributes specified
* above. Verifier is ignored for this create mode
* because we don't have to deal with retry.
*/
createmode = FSAL_EXCLUSIVE_9P;
}
fsal_status = fsal_open2(pfid->pentry,
pfid->state,
openflags,
createmode,
file_name,
&sattr,
verifier,
&pentry_newfile,
NULL);
/* Release the attributes (may release an inherited ACL) */
fsal_release_attrs(&sattr);
if (FSAL_IS_ERROR(fsal_status))
return _9p_rerror(req9p, msgtag,
_9p_tools_errno(fsal_status),
plenout, preply);
/* put parent directory entry */
pfid->pentry->obj_ops->put_ref(pfid->pentry);
/* Build the qid */
qid_newfile.type = _9P_QTFILE;
qid_newfile.version = 0;
qid_newfile.path = pentry_newfile->fileid;
/* The fid will represent the new file now - we can't fail anymore */
pfid->pentry = pentry_newfile;
pfid->qid = qid_newfile;
pfid->xattr = NULL;
pfid->opens = 1;
/* Build the reply */
_9p_setinitptr(cursor, preply, _9P_RLCREATE);
_9p_setptr(cursor, msgtag, u16);
_9p_setqid(cursor, qid_newfile);
_9p_setvalue(cursor, iounit, u32);
_9p_setendptr(cursor, preply);
_9p_checkbound(cursor, preply, plenout);
LogDebug(COMPONENT_9P,
"RLCREATE: tag=%u fid=%u name=%.*s qid=(type=%u,version=%u,path=%llu) iounit=%u pentry=%p",
(u32) *msgtag, *fid, *name_len, name_str, qid_newfile.type,
qid_newfile.version, (unsigned long long)qid_newfile.path,
iounit, pfid->pentry);
return 1;
}
int _9p_symlink(struct _9p_request_data *req9p, void *worker_data,
u32 *plenout, char *preply)
{
char *cursor = req9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE;
u16 *msgtag = NULL;
u32 *fid = NULL;
u16 *name_len = NULL;
char *name_str = NULL;
u16 *linkcontent_len = NULL;
char *linkcontent_str = NULL;
u32 *gid = NULL;
struct _9p_fid *pfid = NULL;
struct _9p_qid qid_symlink;
cache_entry_t *pentry_symlink = NULL;
char symlink_name[MAXNAMLEN];
uint64_t fileid;
cache_inode_status_t cache_status;
uint32_t mode = 0777;
cache_inode_create_arg_t create_arg;
memset(&create_arg, 0, sizeof(create_arg));
/* Get data */
_9p_getptr(cursor, msgtag, u16);
_9p_getptr(cursor, fid, u32);
_9p_getstr(cursor, name_len, name_str);
_9p_getstr(cursor, linkcontent_len, linkcontent_str);
_9p_getptr(cursor, gid, u32);
LogDebug(COMPONENT_9P,
"TSYMLINK: tag=%u fid=%u name=%.*s linkcontent=%.*s gid=%u",
(u32) *msgtag, *fid, *name_len, name_str, *linkcontent_len,
linkcontent_str, *gid);
if (*fid >= _9P_FID_PER_CONN)
return _9p_rerror(req9p, worker_data, msgtag, ERANGE, plenout,
preply);
pfid = req9p->pconn->fids[*fid];
/* Check that it is a valid fid */
if (pfid == NULL || pfid->pentry == NULL) {
LogDebug(COMPONENT_9P, "request on invalid fid=%u", *fid);
return _9p_rerror(req9p, worker_data, msgtag, EIO, plenout,
preply);
}
if ((pfid->op_context.export_perms->options &
EXPORT_OPTION_WRITE_ACCESS) == 0)
return _9p_rerror(req9p, worker_data, msgtag, EROFS, plenout,
preply);
op_ctx = &pfid->op_context;
snprintf(symlink_name, MAXNAMLEN, "%.*s", *name_len, name_str);
create_arg.link_content = gsh_malloc(MAXPATHLEN);
if (create_arg.link_content == NULL)
return _9p_rerror(req9p, worker_data, msgtag, EFAULT, plenout,
preply);
snprintf(create_arg.link_content, MAXPATHLEN, "%.*s", *linkcontent_len,
linkcontent_str);
/* Let's do the job */
/* BUGAZOMEU: @todo : the gid parameter is not used yet,
* flags is not yet used */
cache_status =
cache_inode_create(pfid->pentry, symlink_name, SYMBOLIC_LINK, mode,
&create_arg, &pentry_symlink);
if (create_arg.link_content != NULL)
gsh_free(create_arg.link_content);
if (pentry_symlink == NULL) {
return _9p_rerror(req9p, worker_data, msgtag,
_9p_tools_errno(cache_status), plenout,
preply);
}
/* This is not a TATTACH fid */
pfid->from_attach = false;
cache_status = cache_inode_fileid(pentry_symlink, &fileid);
/* put the entry:
* we don't want to remember it even if cache_inode_fileid fails. */
cache_inode_put(pentry_symlink);
if (cache_status != CACHE_INODE_SUCCESS) {
return _9p_rerror(req9p, worker_data, msgtag,
_9p_tools_errno(cache_status), plenout,
preply);
}
/* Build the qid */
qid_symlink.type = _9P_QTSYMLINK;
qid_symlink.version = 0;
qid_symlink.path = fileid;
/* Build the reply */
_9p_setinitptr(cursor, preply, _9P_RSYMLINK);
_9p_setptr(cursor, msgtag, u16);
_9p_setqid(cursor, qid_symlink);
_9p_setendptr(cursor, preply);
_9p_checkbound(cursor, preply, plenout);
LogDebug(COMPONENT_9P,
"RSYMLINK: tag=%u fid=%u name=%.*s qid=(type=%u,version=%u,path=%llu)",
(u32) *msgtag, *fid, *name_len, name_str, qid_symlink.type,
qid_symlink.version, (unsigned long long)qid_symlink.path);
return 1;
}
int _9p_readdir( _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 ;
int rc = 0 ;
u32 err = 0 ;
u16 * msgtag = NULL ;
u32 * fid = NULL ;
u64 * offset = NULL ;
u32 * count = NULL ;
u32 dcount = 0 ;
u32 recsize = 0 ;
u16 name_len = 0 ;
char * name_str = NULL ;
u8 * qid_type = NULL ;
u64 * qid_path = NULL ;
char * dcount_pos = NULL ;
cache_inode_status_t cache_status;
cache_inode_dir_entry_t **dirent_array = NULL;
cache_inode_endofdir_t eod_met;
cache_entry_t * pentry_dot_dot = NULL ;
cache_inode_dir_entry_t dirent_dot ;
cache_inode_dir_entry_t dirent_dot_dot ;
unsigned int cookie = 0;
unsigned int end_cookie = 0;
unsigned int estimated_num_entries = 0 ;
unsigned int num_entries = 0 ;
unsigned int delta = 0 ;
int unlock = FALSE ;
u64 i = 0LL ;
if ( !preq9p || !pworker_data || !plenout || !preply )
return -1 ;
_9p_fid_t * pfid = NULL ;
/* Get data */
_9p_getptr( cursor, msgtag, u16 ) ;
_9p_getptr( cursor, fid, u32 ) ;
_9p_getptr( cursor, offset, u64 ) ;
_9p_getptr( cursor, count, u32 ) ;
LogDebug( COMPONENT_9P, "TREADDIR: tag=%u fid=%u offset=%llu count=%u",
(u32)*msgtag, *fid, (unsigned long long)*offset, *count ) ;
if( *fid >= _9P_FID_PER_CONN )
{
err = ERANGE ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
pfid = &preq9p->pconn->fids[*fid] ;
/* Use Cache Inode to read the directory's content */
cookie = (unsigned int)*offset ;
/* For each entry, returns:
* qid = 13 bytes
* offset = 8 bytes
* type = 1 byte
* namelen = 2 bytes
* namestr = ~16 bytes (average size)
* -------------------
* total = ~40 bytes (average size) per dentry */
estimated_num_entries = (unsigned int)( *count / 40 ) ;
if((dirent_array = (cache_inode_dir_entry_t **) Mem_Alloc_Label(
estimated_num_entries * sizeof(cache_inode_dir_entry_t*),
"cache_inode_dir_entry_t in _9p_readdir")) == NULL)
{
err = EIO ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
/* Is this the first request ? */
if( *offset == 0 )
{
/* compute the parent entry */
if( ( pentry_dot_dot = cache_inode_lookupp( pfid->pentry,
pwkrdata->ht,
&pwkrdata->cache_inode_client,
&pfid->fsal_op_context,
&cache_status) ) == NULL )
{
err = _9p_tools_errno( cache_status ) ; ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
/* Deal with "." and ".." */
dirent_dot.pentry = pfid->pentry ;
strcpy( dirent_dot.name.name, "." ) ;
dirent_dot.name.len = strlen( dirent_dot.name.name ) ;
dirent_array[0] = &dirent_dot ;
dirent_dot_dot.pentry = pentry_dot_dot ;
strcpy( dirent_dot_dot.name.name, ".." ) ;
dirent_dot_dot.name.len = strlen( dirent_dot_dot.name.name ) ;
dirent_array[1] = &dirent_dot_dot ;
delta = 2 ;
}
else
delta = 0 ;
if( *offset == 2 )
{
/* offset == 2 as an input as one and only reason:
* - a former call with offset=0 was made and the dir was empty
* - '.' and '..' were returned and nothing else
* - the client makes a new call, expecting it to have empty return
*/
num_entries = 0 ; /* Empty return */
unlock = FALSE ;
}
else if(cache_inode_readdir( pfid->pentry,
pfid->pexport->cache_inode_policy,
cookie,
estimated_num_entries - delta,
&num_entries,
(uint64_t *)&end_cookie,
&eod_met,
&dirent_array[delta],
pwkrdata->ht,
&unlock,
&pwkrdata->cache_inode_client,
&pfid->fsal_op_context,
&cache_status) != CACHE_INODE_SUCCESS)
{
if( unlock ) V_r( &pfid->pentry->lock ) ;
err = _9p_tools_errno( cache_status ) ; ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
/* Unlock the directory if needed */
if( unlock ) V_r( &pfid->pentry->lock ) ;
/* Never go behind _9P_MAXDIRCOUNT */
if( num_entries > _9P_MAXDIRCOUNT ) num_entries = _9P_MAXDIRCOUNT ;
/* Build the reply */
_9p_setinitptr( cursor, preply, _9P_RREADDIR ) ;
_9p_setptr( cursor, msgtag, u16 ) ;
/* Remember dcount position for later use */
_9p_savepos( cursor, dcount_pos, u32 ) ;
/* fills in the dentry in 9P marshalling */
for( i = 0 ; i < num_entries + delta ; i++ )
{
recsize = 0 ;
/* Build qid */
switch( dirent_array[i]->pentry->internal_md.type )
{
case REGULAR_FILE:
qid_path = (u64 *)&dirent_array[i]->pentry->object.file.attributes.fileid ;
qid_type = &qid_type_file ;
break ;
case CHARACTER_FILE:
case BLOCK_FILE:
case SOCKET_FILE:
case FIFO_FILE:
qid_path = (u64 *)&dirent_array[i]->pentry->object.special_obj.attributes.fileid ;
qid_type = &qid_type_file ;
break ;
case SYMBOLIC_LINK:
qid_path = (u64 *)&dirent_array[i]->pentry->object.symlink->attributes.fileid ;
qid_type = &qid_type_symlink;
break ;
case DIRECTORY:
case FS_JUNCTION:
qid_path = (u64 *)&dirent_array[i]->pentry->object.dir.attributes.fileid ;
qid_type = &qid_type_dir ;
break ;
case UNASSIGNED:
case RECYCLED:
default:
LogMajor( COMPONENT_9P, "implementation error, you should not see this message !!!!!!" ) ;
err = EINVAL ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
break ;
}
/* Get dirent name information */
name_str = dirent_array[i]->name.name ;
name_len = dirent_array[i]->name.len ;
/* Add 13 bytes in recsize for qid + 8 bytes for offset + 1 for type + 2 for strlen = 24 bytes*/
recsize = 24 + name_len ;
/* Check if there is room left for another dentry */
if( dcount + recsize > *count )
break ; /* exit for loop */
else
dcount += recsize ;
/* qid in 3 parts */
_9p_setptr( cursor, qid_type, u8 ) ;
_9p_setvalue( cursor, 0, u32 ) ; /* qid_version set to 0 to prevent the client from caching */
_9p_setptr( cursor, qid_path, u64 ) ;
/* offset */
_9p_setvalue( cursor, i+cookie+1, u64 ) ;
/* Type (again ?) */
_9p_setptr( cursor, qid_type, u8 ) ;
/* name */
_9p_setstr( cursor, name_len, name_str ) ;
LogDebug( COMPONENT_9P, "RREADDIR dentry: recsize=%u dentry={ off=%llu,qid=(type=%u,version=%u,path=%llu),type=%u,name=%s,pentry=%p",
recsize, (unsigned long long)i+cookie+1, *qid_type, 0, (unsigned long long)*qid_path,
*qid_type, name_str, dirent_array[i]->pentry ) ;
} /* for( i = 0 , ... ) */
if( !CACHE_INODE_KEEP_CONTENT( pfid->pentry->policy ) )
cache_inode_release_dirent( dirent_array, num_entries, &pwkrdata->cache_inode_client ) ;
Mem_Free((char *)dirent_array);
/* Set buffsize in previously saved position */
_9p_setvalue( dcount_pos, dcount, u32 ) ;
_9p_setendptr( cursor, preply ) ;
_9p_checkbound( cursor, preply, plenout ) ;
LogDebug( COMPONENT_9P, "RREADDIR: tag=%u fid=%u dcount=%u",
(u32)*msgtag, *fid , dcount ) ;
return 1 ;
}
int _9p_xattrcreate(struct _9p_request_data *req9p, u32 *plenout, char *preply)
{
char *cursor = req9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE;
int create;
u16 *msgtag = NULL;
u32 *fid = NULL;
u64 *size;
u32 *flag;
u16 *name_len;
char *name_str;
struct _9p_fid *pfid = NULL;
fsal_status_t fsal_status = { .major = ERR_FSAL_NO_ERROR, .minor = 0 };
char name[MAXNAMLEN+1];
/* Get data */
_9p_getptr(cursor, msgtag, u16);
_9p_getptr(cursor, fid, u32);
_9p_getstr(cursor, name_len, name_str);
_9p_getptr(cursor, size, u64);
_9p_getptr(cursor, flag, u32);
LogDebug(COMPONENT_9P,
"TXATTRCREATE: tag=%u fid=%u name=%.*s size=%llu flag=%u",
(u32) *msgtag, *fid, *name_len, name_str,
(unsigned long long)*size, *flag);
if (*fid >= _9P_FID_PER_CONN)
return _9p_rerror(req9p, msgtag, ERANGE, plenout, preply);
if (*size > _9P_XATTR_MAX_SIZE)
return _9p_rerror(req9p, msgtag, ENOSPC, plenout, preply);
pfid = req9p->pconn->fids[*fid];
/* Check that it is a valid fid */
if (pfid == NULL || pfid->pentry == NULL) {
LogDebug(COMPONENT_9P, "request on invalid fid=%u", *fid);
return _9p_rerror(req9p, msgtag, EIO, plenout, preply);
}
/* set op_ctx, it will be useful if FSAL is later called */
_9p_init_opctx(pfid, req9p);
if ((op_ctx->export_perms->options &
EXPORT_OPTION_WRITE_ACCESS) == 0)
return _9p_rerror(req9p, msgtag, EROFS, plenout, preply);
if (*name_len >= sizeof(name)) {
LogDebug(COMPONENT_9P, "request with name too long (%u)",
*name_len);
return _9p_rerror(req9p, msgtag, ENAMETOOLONG, plenout,
preply);
}
snprintf(name, sizeof(name), "%.*s", *name_len, name_str);
if (*size == 0LL) {
/* Size == 0 : this is in fact a call to removexattr */
LogDebug(COMPONENT_9P,
"TXATTRCREATE: tag=%u fid=%u : will remove xattr %s",
(u32) *msgtag, *fid, name);
fsal_status =
pfid->pentry->obj_ops.remove_extattr_by_name(pfid->pentry,
name);
if (FSAL_IS_ERROR(fsal_status))
return _9p_rerror(req9p, msgtag,
_9p_tools_errno(fsal_status), plenout,
preply);
} else {
/* Size != 0 , this is a creation/replacement of xattr */
/* Create the xattr at the FSAL level and cache result */
pfid->xattr = gsh_malloc(sizeof(*pfid->xattr) + *size);
pfid->xattr->xattr_size = *size;
pfid->xattr->xattr_offset = 0LL;
pfid->xattr->xattr_write = _9P_XATTR_CAN_WRITE;
strncpy(pfid->xattr->xattr_name, name, MAXNAMLEN);
/* /!\ POSIX_ACL RELATED HOOK
* Setting a POSIX ACL (using setfacl for example) means
* settings a xattr named system.posix_acl_access BUT this
* attribute is to be used and should not be created
* (it exists already since acl feature is on) */
if (!strncmp(name, "system.posix_acl_access", MAXNAMLEN))
goto skip_create;
/* try to create if flag doesn't have REPLACE bit */
if ((*flag & XATTR_REPLACE) == 0)
create = true;
else
create = false;
fsal_status =
pfid->pentry->obj_ops.setextattr_value(pfid->pentry, name,
pfid->xattr->xattr_content,
*size, create);
/* Try again with create = false if flag was set to 0
* and create failed because attribute already exists */
if (FSAL_IS_ERROR(fsal_status)
&& fsal_status.major == ERR_FSAL_EXIST && (*flag == 0)) {
fsal_status =
pfid->pentry->obj_ops.setextattr_value(pfid->pentry,
name,
pfid->xattr->xattr_content,
*size, false);
}
if (FSAL_IS_ERROR(fsal_status)) {
gsh_free(pfid->xattr);
return _9p_rerror(req9p, msgtag,
_9p_tools_errno(fsal_status), plenout,
preply);
}
}
skip_create:
/* Build the reply */
_9p_setinitptr(cursor, preply, _9P_RXATTRCREATE);
_9p_setptr(cursor, msgtag, u16);
_9p_setendptr(cursor, preply);
_9p_checkbound(cursor, preply, plenout);
LogDebug(COMPONENT_9P,
"RXATTRCREATE: tag=%u fid=%u name=%.*s size=%llu flag=%u",
(u32) *msgtag, *fid, *name_len, name_str,
(unsigned long long)*size, *flag);
return 1;
} /* _9p_xattrcreate */
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_remove(struct _9p_request_data *req9p, u32 *plenout, char *preply)
{
char *cursor = req9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE;
u16 *msgtag = NULL;
u32 *fid = NULL;
struct _9p_fid *pfid = NULL;
cache_inode_status_t cache_status;
/* Get data */
_9p_getptr(cursor, msgtag, u16);
_9p_getptr(cursor, fid, u32);
LogDebug(COMPONENT_9P, "TREMOVE: tag=%u fid=%u", (u32) *msgtag, *fid);
if (*fid >= _9P_FID_PER_CONN)
return _9p_rerror(req9p, msgtag, ERANGE, plenout, preply);
pfid = req9p->pconn->fids[*fid];
/* Check that it is a valid fid */
if (pfid == NULL || pfid->pentry == NULL) {
LogDebug(COMPONENT_9P, "request on invalid fid=%u", *fid);
return _9p_rerror(req9p, msgtag, EIO, plenout, preply);
}
_9p_init_opctx(pfid, req9p);
if ((op_ctx->export_perms->options &
EXPORT_OPTION_WRITE_ACCESS) == 0)
return _9p_rerror(req9p, msgtag, EROFS, plenout, preply);
cache_status = cache_inode_remove(pfid->ppentry, pfid->name);
if (cache_status != CACHE_INODE_SUCCESS)
return _9p_rerror(req9p, msgtag,
_9p_tools_errno(cache_status), plenout,
preply);
/* If object is an opened file, close it */
if ((pfid->pentry->type == REGULAR_FILE) && is_open(pfid->pentry)) {
if (pfid->opens) {
cache_inode_dec_pin_ref(pfid->pentry, false);
pfid->opens = 0; /* dead */
/* Under this flag, pin ref is still checked */
cache_status =
cache_inode_close(pfid->pentry,
CACHE_INODE_FLAG_REALLYCLOSE);
if (cache_status != CACHE_INODE_SUCCESS) {
FREE_FID(pfid, fid, req9p);
return _9p_rerror(req9p, msgtag,
_9p_tools_errno(cache_status),
plenout, preply);
}
}
}
/* Clean the fid */
FREE_FID(pfid, fid, req9p);
/* Build the reply */
_9p_setinitptr(cursor, preply, _9P_RREMOVE);
_9p_setptr(cursor, msgtag, u16);
_9p_setendptr(cursor, preply);
_9p_checkbound(cursor, preply, plenout);
LogDebug(COMPONENT_9P, "TREMOVE: tag=%u fid=%u", (u32) *msgtag, *fid);
/* _9p_stat_update( *pmsgtype, TRUE, &pwkrdata->stats._9p_stat_req); */
return 1;
}
int _9p_write(struct _9p_request_data *req9p, u32 *plenout, char *preply)
{
char *cursor = req9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE;
u16 *msgtag = NULL;
u32 *fid = NULL;
u64 *offset = NULL;
u32 *count = NULL;
u32 outcount = 0;
struct _9p_fid *pfid = NULL;
size_t size;
size_t written_size = 0;
char *databuffer = NULL;
/* Get data */
_9p_getptr(cursor, msgtag, u16);
_9p_getptr(cursor, fid, u32);
_9p_getptr(cursor, offset, u64);
_9p_getptr(cursor, count, u32);
databuffer = cursor;
LogDebug(COMPONENT_9P, "TWRITE: tag=%u fid=%u offset=%llu count=%u",
(u32) *msgtag, *fid, (unsigned long long)*offset, *count);
if (*fid >= _9P_FID_PER_CONN)
return _9p_rerror(req9p, msgtag, ERANGE, plenout, preply);
pfid = req9p->pconn->fids[*fid];
/* Make sure the requested amount of data respects negotiated msize */
if (*count + _9P_ROOM_TWRITE > req9p->pconn->msize)
return _9p_rerror(req9p, msgtag, ERANGE, plenout, preply);
/* Check that it is a valid fid */
if (pfid == NULL || pfid->pentry == NULL) {
LogDebug(COMPONENT_9P, "request on invalid fid=%u", *fid);
return _9p_rerror(req9p, msgtag, EIO, plenout, preply);
}
_9p_init_opctx(pfid, req9p);
if ((op_ctx->export_perms->options &
EXPORT_OPTION_WRITE_ACCESS) == 0)
return _9p_rerror(req9p, msgtag, EROFS, plenout, preply);
/* Do the job */
size = *count;
if (pfid->xattr != NULL) {
if (*offset > pfid->xattr->xattr_size)
return _9p_rerror(req9p, msgtag, EINVAL, plenout,
preply);
if (pfid->xattr->xattr_write != _9P_XATTR_CAN_WRITE &&
pfid->xattr->xattr_write != _9P_XATTR_DID_WRITE)
return _9p_rerror(req9p, msgtag, EINVAL, plenout,
preply);
written_size = MIN(*count,
pfid->xattr->xattr_size - *offset);
memcpy(pfid->xattr->xattr_content + *offset,
databuffer, written_size);
pfid->xattr->xattr_offset += size;
pfid->xattr->xattr_write = _9P_XATTR_DID_WRITE;
/* ADD CODE TO DETECT GAP */
#if 0
fsal_status =
pfid->pentry->ops->setextattr_value_by_id(
pfid->pentry,
&pfid->op_context,
pfid->xattr->xattr_id,
xattrval, size + 1);
if (FSAL_IS_ERROR(fsal_status))
return _9p_rerror(req9p, msgtag,
_9p_tools_errno(fsal_status), plenout,
preply);
#endif
outcount = written_size;
} else {
struct _9p_write_data write_data;
struct fsal_io_arg *write_arg = alloca(sizeof(*write_arg) +
sizeof(struct iovec));
write_arg->info = NULL;
write_arg->state = pfid->state;
write_arg->offset = *offset;
write_arg->iov_count = 1;
write_arg->iov[0].iov_len = size;
write_arg->iov[0].iov_base = databuffer;
write_arg->io_amount = 0;
write_arg->fsal_stable = false;
write_data.client = req9p->pconn->client;
/* Do the actual write */
pfid->pentry->obj_ops->write2(pfid->pentry, true, _9p_write_cb,
write_arg, &write_data);
if (FSAL_IS_ERROR(write_data.ret))
return _9p_rerror(req9p, msgtag,
_9p_tools_errno(write_data.ret),
plenout, preply);
outcount = (u32) write_arg->io_amount;
}
/* Build the reply */
_9p_setinitptr(cursor, preply, _9P_RWRITE);
_9p_setptr(cursor, msgtag, u16);
_9p_setvalue(cursor, outcount, u32);
_9p_setendptr(cursor, preply);
_9p_checkbound(cursor, preply, plenout);
LogDebug(COMPONENT_9P,
"RWRITE: tag=%u fid=%u offset=%llu input count=%u output count=%u",
(u32) *msgtag, *fid, (unsigned long long)*offset, *count,
outcount);
/**
* @todo write statistics accounting goes here
* modeled on nfs I/O stats
*/
return 1;
}
int _9p_mkdir(struct _9p_request_data *req9p, u32 *plenout, char *preply)
{
char *cursor = req9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE;
u16 *msgtag = NULL;
u32 *fid = NULL;
u32 *mode = NULL;
u32 *gid = NULL;
u16 *name_len = NULL;
char *name_str = NULL;
struct _9p_fid *pfid = NULL;
struct _9p_qid qid_newdir;
struct fsal_obj_handle *pentry_newdir = NULL;
char dir_name[MAXNAMLEN+1];
fsal_status_t fsal_status;
struct attrlist sattr;
/* Get data */
_9p_getptr(cursor, msgtag, u16);
_9p_getptr(cursor, fid, u32);
_9p_getstr(cursor, name_len, name_str);
_9p_getptr(cursor, mode, u32);
_9p_getptr(cursor, gid, u32);
LogDebug(COMPONENT_9P,
"TMKDIR: tag=%u fid=%u name=%.*s mode=0%o gid=%u",
(u32) *msgtag, *fid, *name_len, name_str, *mode, *gid);
if (*fid >= _9P_FID_PER_CONN)
return _9p_rerror(req9p, msgtag, ERANGE, plenout, preply);
pfid = req9p->pconn->fids[*fid];
/* Check that it is a valid fid */
if (pfid == NULL || pfid->pentry == NULL) {
LogDebug(COMPONENT_9P, "request on invalid fid=%u", *fid);
return _9p_rerror(req9p, msgtag, EIO, plenout, preply);
}
_9p_init_opctx(pfid, req9p);
if ((op_ctx->export_perms->options &
EXPORT_OPTION_WRITE_ACCESS) == 0)
return _9p_rerror(req9p, msgtag, EROFS, plenout, preply);
if (*name_len >= sizeof(dir_name)) {
LogDebug(COMPONENT_9P, "request with name too long (%u)",
*name_len);
return _9p_rerror(req9p, msgtag, ENAMETOOLONG, plenout,
preply);
}
snprintf(dir_name, sizeof(dir_name), "%.*s", *name_len, name_str);
fsal_prepare_attrs(&sattr, ATTR_MODE);
sattr.mode = *mode;
sattr.valid_mask = ATTR_MODE;
/* Create the directory */
/* BUGAZOMEU: @todo : the gid parameter is not used yet */
fsal_status = fsal_create(pfid->pentry, dir_name, DIRECTORY, &sattr,
NULL, &pentry_newdir, NULL);
/* Release the attributes (may release an inherited ACL) */
fsal_release_attrs(&sattr);
if (FSAL_IS_ERROR(fsal_status))
return _9p_rerror(req9p, msgtag,
_9p_tools_errno(fsal_status), plenout,
preply);
pentry_newdir->obj_ops.put_ref(pentry_newdir);
/* Build the qid */
qid_newdir.type = _9P_QTDIR;
qid_newdir.version = 0;
qid_newdir.path = pentry_newdir->fileid;
/* Build the reply */
_9p_setinitptr(cursor, preply, _9P_RMKDIR);
_9p_setptr(cursor, msgtag, u16);
_9p_setqid(cursor, qid_newdir);
_9p_setendptr(cursor, preply);
_9p_checkbound(cursor, preply, plenout);
LogDebug(COMPONENT_9P,
"RMKDIR: tag=%u fid=%u name=%.*s qid=(type=%u,version=%u,path=%llu)",
(u32) *msgtag, *fid, *name_len, name_str, qid_newdir.type,
qid_newdir.version, (unsigned long long)qid_newdir.path);
return 1;
}
int _9p_readlink( _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 ;
_9p_fid_t * pfid = NULL ;
int rc = 0 ;
int err = 0 ;
fsal_path_t symlink_data;
cache_inode_status_t cache_status ;
if ( !preq9p || !pworker_data || !plenout || !preply )
return -1 ;
/* Get data */
_9p_getptr( cursor, msgtag, u16 ) ;
_9p_getptr( cursor, fid, u32 ) ;
LogDebug( COMPONENT_9P, "TREADLINK: tag=%u fid=%u",(u32)*msgtag, *fid ) ;
if( *fid >= _9P_FID_PER_CONN )
{
err = ERANGE ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
pfid = &preq9p->pconn->fids[*fid] ;
/* let's do the job */
if( cache_inode_readlink( pfid->pentry,
&symlink_data,
pwkrdata->ht,
&pwkrdata->cache_inode_client,
&pfid->fsal_op_context,
&cache_status ) != CACHE_INODE_SUCCESS )
{
err = _9p_tools_errno( cache_status ) ; ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
/* Build the reply */
_9p_setinitptr( cursor, preply, _9P_RREADLINK ) ;
_9p_setptr( cursor, msgtag, u16 ) ;
_9p_setstr( cursor, strlen( symlink_data.path ), symlink_data.path ) ;
_9p_setendptr( cursor, preply ) ;
_9p_checkbound( cursor, preply, plenout ) ;
LogDebug( COMPONENT_9P, "RREADLINK: tag=%u fid=%u link=%s", *msgtag, (u32)*fid, symlink_data.path ) ;
return 1 ;
}
int _9p_walk(struct _9p_request_data *req9p, void *worker_data,
u32 *plenout, char *preply)
{
char *cursor = req9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE;
unsigned int i = 0;
u16 *msgtag = NULL;
u32 *fid = NULL;
u32 *newfid = NULL;
u16 *nwname = NULL;
u16 *wnames_len;
char *wnames_str;
uint64_t fileid;
cache_inode_status_t cache_status;
cache_entry_t *pentry = NULL;
char name[MAXNAMLEN];
u16 *nwqid;
struct _9p_fid *pfid = NULL;
struct _9p_fid *pnewfid = NULL;
/* Now Get data */
_9p_getptr(cursor, msgtag, u16);
_9p_getptr(cursor, fid, u32);
_9p_getptr(cursor, newfid, u32);
_9p_getptr(cursor, nwname, u16);
LogDebug(COMPONENT_9P, "TWALK: tag=%u fid=%u newfid=%u nwname=%u",
(u32) *msgtag, *fid, *newfid, *nwname);
if (*fid >= _9P_FID_PER_CONN)
return _9p_rerror(req9p, worker_data, msgtag, ERANGE, plenout,
preply);
if (*newfid >= _9P_FID_PER_CONN)
return _9p_rerror(req9p, worker_data, msgtag, ERANGE, plenout,
preply);
pfid = req9p->pconn->fids[*fid];
/* Check that it is a valid fid */
if (pfid == NULL || pfid->pentry == NULL) {
LogDebug(COMPONENT_9P, "request on invalid fid=%u", *fid);
return _9p_rerror(req9p, worker_data, msgtag, EIO, plenout,
preply);
}
op_ctx = &pfid->op_context;
pnewfid = gsh_calloc(1, sizeof(struct _9p_fid));
if (pnewfid == NULL)
return _9p_rerror(req9p, worker_data, msgtag, ERANGE, plenout,
preply);
/* Is this a lookup or a fid cloning operation ? */
if (*nwname == 0) {
/* Cloning operation */
memcpy((char *)pnewfid, (char *)pfid, sizeof(struct _9p_fid));
/* Set the new fid id */
pnewfid->fid = *newfid;
/* This is not a TATTACH fid */
pnewfid->from_attach = false;
/* Increments refcount */
(void) cache_inode_lru_ref(pnewfid->pentry, LRU_REQ_STALE_OK);
} else {
/* the walk is in fact a lookup */
pentry = pfid->pentry;
for (i = 0; i < *nwname; i++) {
_9p_getstr(cursor, wnames_len, wnames_str);
snprintf(name, MAXNAMLEN, "%.*s", *wnames_len,
wnames_str);
LogDebug(COMPONENT_9P,
"TWALK (lookup): tag=%u fid=%u newfid=%u (component %u/%u :%s)",
(u32) *msgtag, *fid, *newfid, i + 1, *nwname,
name);
if (pnewfid->pentry == pentry)
pnewfid->pentry = NULL;
/* refcount +1 */
cache_status =
cache_inode_lookup(pentry, name, &pnewfid->pentry);
if (pnewfid->pentry == NULL) {
gsh_free(pnewfid);
return _9p_rerror(req9p, worker_data, msgtag,
_9p_tools_errno(cache_status),
plenout, preply);
}
if (pentry != pfid->pentry)
cache_inode_put(pentry);
pentry = pnewfid->pentry;
}
pnewfid->fid = *newfid;
pnewfid->op_context = pfid->op_context;
pnewfid->ppentry = pfid->pentry;
strncpy(pnewfid->name, name, MAXNAMLEN-1);
/* gdata ref is not hold : the pfid, which use same gdata */
/* will be clunked after pnewfid */
/* This clunk release the gdata */
pnewfid->gdata = pfid->gdata;
/* This is not a TATTACH fid */
pnewfid->from_attach = false;
cache_status = cache_inode_fileid(pnewfid->pentry, &fileid);
if (cache_status != CACHE_INODE_SUCCESS) {
gsh_free(pnewfid);
return _9p_rerror(req9p, worker_data, msgtag,
_9p_tools_errno(cache_status),
plenout, preply);
}
/* Build the qid */
/* No cache, we want the client to stay synchronous
* with the server */
pnewfid->qid.version = 0;
pnewfid->qid.path = fileid;
pnewfid->specdata.xattr.xattr_id = 0;
pnewfid->specdata.xattr.xattr_content = NULL;
switch (pnewfid->pentry->type) {
case REGULAR_FILE:
case CHARACTER_FILE:
case BLOCK_FILE:
case SOCKET_FILE:
case FIFO_FILE:
pnewfid->qid.type = _9P_QTFILE;
break;
case SYMBOLIC_LINK:
pnewfid->qid.type = _9P_QTSYMLINK;
break;
case DIRECTORY:
pnewfid->qid.type = _9P_QTDIR;
break;
default:
LogMajor(COMPONENT_9P,
"implementation error, you should not see this message !!!!!!");
gsh_free(pnewfid);
return _9p_rerror(req9p, worker_data, msgtag, EINVAL,
plenout, preply);
break;
}
}
/* keep info on new fid */
req9p->pconn->fids[*newfid] = pnewfid;
/* As much qid as requested fid */
nwqid = nwname;
/* Hold refcount on gdata */
uid2grp_hold_group_data(pnewfid->gdata);
/* Build the reply */
_9p_setinitptr(cursor, preply, _9P_RWALK);
_9p_setptr(cursor, msgtag, u16);
_9p_setptr(cursor, nwqid, u16);
for (i = 0; i < *nwqid; i++) {
/** @todo: should be different qids
* for each directory walked through */
_9p_setqid(cursor, pnewfid->qid);
}
_9p_setendptr(cursor, preply);
_9p_checkbound(cursor, preply, plenout);
LogDebug(COMPONENT_9P,
"RWALK: tag=%u fid=%u newfid=%u nwqid=%u fileid=%llu pentry=%p refcount=%i",
(u32) *msgtag, *fid, *newfid, *nwqid,
(unsigned long long)pnewfid->qid.path, pnewfid->pentry,
pnewfid->pentry->lru.refcnt);
return 1;
}
int _9p_xattrwalk( _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 * attrfid = NULL ;
u16 * wnames_len ;
char * wnames_str ;
int rc = 0 ;
u32 err = 0 ;
if ( !preq9p || !pworker_data || !plenout || !preply )
return -1 ;
/* Get data */
_9p_getptr( cursor, msgtag, u16 ) ;
_9p_getptr( cursor, fid, u32 ) ;
_9p_getptr( cursor, attrfid, u32 ) ;
LogDebug( COMPONENT_9P, "TXATTRWALK: tag=%u fid=%u attrfid=%u" ,
(u32)*msgtag, *fid, *attrfid ) ;
_9p_getstr( cursor, wnames_len, wnames_str ) ;
LogDebug( COMPONENT_9P, "TXATTRWALK (component): tag=%u fid=%u attrfid=%u nwnames=%.*s",
(u32)*msgtag, *fid, *attrfid, *wnames_len, wnames_str ) ;
if( *fid >= _9P_FID_PER_CONN )
{
err = ERANGE ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
if( *attrfid >= _9P_FID_PER_CONN )
{
err = ERANGE ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
/* Build the reply */
_9p_setinitptr( cursor, preply, _9P_RXATTRWALK ) ;
_9p_setptr( cursor, msgtag, u16 ) ;
_9p_setvalue( cursor, 0LL, u64 ) ; /* No xattr for now */
_9p_setendptr( cursor, preply ) ;
_9p_checkbound( cursor, preply, plenout ) ;
LogDebug( COMPONENT_9P, "RXATTRWALK: tag=%u fid=%u attrfid=%u nwnames=%.*s",
(u32)*msgtag, *fid, *attrfid, *wnames_len, wnames_str ) ;
return 1 ;
} /* _9p_xattrwalk */
int _9p_renameat( _9p_request_data_t * preq9p,
void * pworker_data,
u32 * plenout,
char * preply)
{
char * cursor = preq9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE ;
u16 * msgtag = NULL ;
u32 * oldfid = NULL ;
u16 * oldname_len = NULL ;
char * oldname_str = NULL ;
u32 * newfid = NULL ;
u16 * newname_len = NULL ;
char * newname_str = NULL ;
_9p_fid_t * poldfid = NULL ;
_9p_fid_t * pnewfid = NULL ;
fsal_attrib_list_t oldfsalattr ;
fsal_attrib_list_t newfsalattr ;
cache_inode_status_t cache_status ;
fsal_name_t oldname ;
fsal_name_t newname ;
if ( !preq9p || !pworker_data || !plenout || !preply )
return -1 ;
/* Get data */
_9p_getptr( cursor, msgtag, u16 ) ;
_9p_getptr( cursor, oldfid, u32 ) ;
_9p_getstr( cursor, oldname_len, oldname_str ) ;
_9p_getptr( cursor, newfid, u32 ) ;
_9p_getstr( cursor, newname_len, newname_str ) ;
LogDebug( COMPONENT_9P, "TRENAMEAT: tag=%u oldfid=%u oldname=%.*s newfid=%u newname=%.*s",
(u32)*msgtag, *oldfid, *oldname_len, oldname_str, *newfid, *newname_len, newname_str ) ;
if( *oldfid >= _9P_FID_PER_CONN )
return _9p_rerror( preq9p, msgtag, ERANGE, plenout, preply ) ;
poldfid = &preq9p->pconn->fids[*oldfid] ;
if( *newfid >= _9P_FID_PER_CONN )
return _9p_rerror( preq9p, msgtag, ERANGE, plenout, preply ) ;
pnewfid = &preq9p->pconn->fids[*newfid] ;
/* Let's do the job */
snprintf( oldname.name, FSAL_MAX_NAME_LEN, "%.*s", *oldname_len, oldname_str ) ;
oldname.len = *oldname_len + 1 ;
snprintf( newname.name, FSAL_MAX_NAME_LEN, "%.*s", *newname_len, newname_str ) ;
newname.len = *newname_len + 1 ;
if( cache_inode_rename( poldfid->pentry,
&oldname,
pnewfid->pentry,
&newname,
&oldfsalattr,
&newfsalattr,
&poldfid->fsal_op_context,
&cache_status) != CACHE_INODE_SUCCESS )
return _9p_rerror( preq9p, msgtag, _9p_tools_errno( cache_status ), plenout, preply ) ;
/* Build the reply */
_9p_setinitptr( cursor, preply, _9P_RRENAMEAT ) ;
_9p_setptr( cursor, msgtag, u16 ) ;
_9p_setendptr( cursor, preply ) ;
_9p_checkbound( cursor, preply, plenout ) ;
LogDebug( COMPONENT_9P, "RRENAMEAT: tag=%u oldfid=%u oldname=%.*s newfid=%u newname=%.*s",
(u32)*msgtag, *oldfid, *oldname_len, oldname_str, *newfid, *newname_len, newname_str ) ;
return 1 ;
}
int _9p_setattr(struct _9p_request_data *req9p, u32 *plenout, char *preply)
{
char *cursor = req9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE;
u16 *msgtag = NULL;
u32 *fid = NULL;
u32 *valid = NULL;
u32 *mode = NULL;
u32 *uid = NULL;
u32 *gid = NULL;
u64 *size = NULL;
u64 *atime_sec = NULL;
u64 *atime_nsec = NULL;
u64 *mtime_sec = NULL;
u64 *mtime_nsec = NULL;
struct _9p_fid *pfid = NULL;
struct attrlist fsalattr;
fsal_status_t fsal_status;
struct timeval t;
/* Get data */
_9p_getptr(cursor, msgtag, u16);
_9p_getptr(cursor, fid, u32);
_9p_getptr(cursor, valid, u32);
_9p_getptr(cursor, mode, u32);
_9p_getptr(cursor, uid, u32);
_9p_getptr(cursor, gid, u32);
_9p_getptr(cursor, size, u64);
_9p_getptr(cursor, atime_sec, u64);
_9p_getptr(cursor, atime_nsec, u64);
_9p_getptr(cursor, mtime_sec, u64);
_9p_getptr(cursor, mtime_nsec, u64);
LogDebug(COMPONENT_9P,
"TSETATTR: tag=%u fid=%u valid=0x%x mode=0%o uid=%u gid=%u size=%"
PRIu64 " atime=(%llu|%llu) mtime=(%llu|%llu)", (u32) *msgtag,
*fid, *valid, *mode, *uid, *gid, *size,
(unsigned long long)*atime_sec,
(unsigned long long)*atime_nsec,
(unsigned long long)*mtime_sec,
(unsigned long long)*mtime_nsec);
if (*fid >= _9P_FID_PER_CONN)
return _9p_rerror(req9p, msgtag, ERANGE, plenout, preply);
pfid = req9p->pconn->fids[*fid];
/* Check that it is a valid fid */
if (pfid == NULL || pfid->pentry == NULL) {
LogDebug(COMPONENT_9P, "request on invalid fid=%u", *fid);
return _9p_rerror(req9p, msgtag, EIO, plenout, preply);
}
_9p_init_opctx(pfid, req9p);
if ((op_ctx->export_perms->options &
EXPORT_OPTION_WRITE_ACCESS) == 0)
return _9p_rerror(req9p, msgtag, EROFS, plenout, preply);
/* If a "time" change is required, but not with the "_set" suffix,
* use gettimeofday */
if (*valid &
(_9P_SETATTR_ATIME | _9P_SETATTR_CTIME | _9P_SETATTR_MTIME)) {
if (gettimeofday(&t, NULL) == -1) {
LogMajor(COMPONENT_9P,
"TSETATTR: tag=%u fid=%u ERROR !! gettimeofday returned -1 with errno=%u",
(u32) *msgtag, *fid, errno);
return _9p_rerror(req9p, msgtag, errno,
plenout, preply);
}
}
/* Let's do the job */
memset((char *)&fsalattr, 0, sizeof(fsalattr));
if (*valid & _9P_SETATTR_MODE) {
FSAL_SET_MASK(fsalattr.mask, ATTR_MODE);
fsalattr.mode = *mode;
}
if (*valid & _9P_SETATTR_UID) {
FSAL_SET_MASK(fsalattr.mask, ATTR_OWNER);
fsalattr.owner = *uid;
}
if (*valid & _9P_SETATTR_GID) {
FSAL_SET_MASK(fsalattr.mask, ATTR_GROUP);
fsalattr.group = *gid;
}
if (*valid & _9P_SETATTR_SIZE) {
FSAL_SET_MASK(fsalattr.mask, ATTR_SIZE);
fsalattr.filesize = *size;
}
if (*valid & _9P_SETATTR_ATIME) {
FSAL_SET_MASK(fsalattr.mask, ATTR_ATIME);
fsalattr.atime.tv_sec = t.tv_sec;
fsalattr.atime.tv_nsec = t.tv_usec * 1000;
}
if (*valid & _9P_SETATTR_MTIME) {
FSAL_SET_MASK(fsalattr.mask, ATTR_MTIME);
fsalattr.mtime.tv_sec = t.tv_sec;
fsalattr.mtime.tv_nsec = t.tv_usec * 1000;
}
if (*valid & _9P_SETATTR_CTIME) {
FSAL_SET_MASK(fsalattr.mask, ATTR_CTIME);
fsalattr.ctime.tv_sec = t.tv_sec;
fsalattr.ctime.tv_nsec = t.tv_usec * 1000;
}
if (*valid & _9P_SETATTR_ATIME_SET) {
FSAL_SET_MASK(fsalattr.mask, ATTR_ATIME);
fsalattr.atime.tv_sec = *atime_sec;
fsalattr.atime.tv_nsec = *atime_nsec;
}
if (*valid & _9P_SETATTR_MTIME_SET) {
FSAL_SET_MASK(fsalattr.mask, ATTR_MTIME);
fsalattr.mtime.tv_sec = *mtime_sec;
fsalattr.mtime.tv_nsec = *mtime_nsec;
}
/* Now set the attr */
fsal_status = fsal_setattr(pfid->pentry, false, pfid->state, &fsalattr);
/* Release the attributes (may release an inherited ACL) */
fsal_release_attrs(&fsalattr);
if (FSAL_IS_ERROR(fsal_status))
return _9p_rerror(req9p, msgtag,
_9p_tools_errno(fsal_status), plenout,
preply);
/* Build the reply */
_9p_setinitptr(cursor, preply, _9P_RSETATTR);
_9p_setptr(cursor, msgtag, u16);
_9p_setendptr(cursor, preply);
_9p_checkbound(cursor, preply, plenout);
LogDebug(COMPONENT_9P,
"RSETATTR: tag=%u fid=%u valid=0x%x mode=0%o uid=%u gid=%u size=%"
PRIu64 " atime=(%llu|%llu) mtime=(%llu|%llu)", (u32) *msgtag,
*fid, *valid, *mode, *uid, *gid, *size,
(unsigned long long)*atime_sec,
(unsigned long long)*atime_nsec,
(unsigned long long)*mtime_sec,
(unsigned long long)*mtime_nsec);
/* _9p_stat_update(*pmsgtype, TRUE, &pwkrdata->stats._9p_stat_req); */
return 1;
}
int _9p_rename(struct _9p_request_data *req9p, void *worker_data,
u32 *plenout, char *preply)
{
char *cursor = req9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE;
u16 *msgtag = NULL;
u32 *fid = NULL;
u32 *dfid = NULL;
u16 *name_len = NULL;
char *name_str = NULL; /* for unused-but-set-variable */
struct _9p_fid *pfid = NULL;
struct _9p_fid *pdfid = NULL;
char newname[MAXNAMLEN];
cache_inode_status_t cache_status;
/* Get data */
_9p_getptr(cursor, msgtag, u16);
_9p_getptr(cursor, fid, u32);
_9p_getptr(cursor, dfid, u32);
_9p_getstr(cursor, name_len, name_str);
LogDebug(COMPONENT_9P, "TRENAME: tag=%u fid=%u dfid=%u name=%.*s",
(u32) *msgtag, *fid, *dfid, *name_len, name_str);
if (*fid >= _9P_FID_PER_CONN)
return _9p_rerror(req9p, worker_data, msgtag, ERANGE, plenout,
preply);
pfid = req9p->pconn->fids[*fid];
/* Check that it is a valid fid */
if (pfid == NULL || pfid->pentry == NULL) {
LogDebug(COMPONENT_9P, "request on invalid fid=%u", *fid);
return _9p_rerror(req9p, worker_data, msgtag, EIO, plenout,
preply);
}
if (*dfid >= _9P_FID_PER_CONN)
return _9p_rerror(req9p, worker_data, msgtag, ERANGE, plenout,
preply);
pdfid = req9p->pconn->fids[*dfid];
/* Check that it is a valid fid */
if (pdfid == NULL || pdfid->pentry == NULL) {
LogDebug(COMPONENT_9P, "request on invalid fid=%u", *fid);
return _9p_rerror(req9p, worker_data, msgtag, EIO, plenout,
preply);
}
snprintf(newname, MAXNAMLEN, "%.*s", *name_len, name_str);
cache_status =
cache_inode_rename(pfid->ppentry, pfid->name, pdfid->pentry,
newname, &pfid->op_context);
if (cache_status != CACHE_INODE_SUCCESS)
return _9p_rerror(req9p, worker_data, msgtag,
_9p_tools_errno(cache_status), plenout,
preply);
/* Build the reply */
_9p_setinitptr(cursor, preply, _9P_RRENAME);
_9p_setptr(cursor, msgtag, u16);
_9p_setendptr(cursor, preply);
_9p_checkbound(cursor, preply, plenout);
LogDebug(COMPONENT_9P, "RRENAMEAT: tag=%u fid=%u dfid=%u newname=%.*s",
(u32) *msgtag, *fid, *dfid, *name_len, name_str);
/* _9p_stat_update(*pmsgtype, TRUE, &pwkrdata->stats._9p_stat_req); */
return 1;
}
int _9p_mknod( _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 * mode = NULL ;
u32 * gid = NULL ;
u32 * major = NULL ;
u32 * minor = NULL ;
u16 * name_len = NULL ;
char * name_str = NULL ;
_9p_fid_t * pfid = NULL ;
_9p_qid_t qid_newobj ;
cache_entry_t * pentry_newobj = NULL ;
fsal_name_t obj_name ;
fsal_attrib_list_t fsalattr ;
cache_inode_status_t cache_status ;
cache_inode_file_type_t nodetype;
cache_inode_create_arg_t create_arg;
int rc = 0 ;
int err = 0 ;
if ( !preq9p || !pworker_data || !plenout || !preply )
return -1 ;
memset(&create_arg, 0, sizeof(create_arg));
/* Get data */
_9p_getptr( cursor, msgtag, u16 ) ;
_9p_getptr( cursor, fid, u32 ) ;
_9p_getstr( cursor, name_len, name_str ) ;
_9p_getptr( cursor, mode, u32 ) ;
_9p_getptr( cursor, major, u32 ) ;
_9p_getptr( cursor, minor, u32 ) ;
_9p_getptr( cursor, gid, u32 ) ;
LogDebug( COMPONENT_9P, "TMKNOD: tag=%u fid=%u name=%.*s mode=0%o major=%u minor=%u gid=%u",
(u32)*msgtag, *fid, *name_len, name_str, *mode, *major, *minor, *gid ) ;
if( *fid >= _9P_FID_PER_CONN )
{
err = ERANGE ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
pfid = &preq9p->pconn->fids[*fid] ;
snprintf( obj_name.name, FSAL_MAX_NAME_LEN, "%.*s", *name_len, name_str ) ;
/* Check for bad type */
if( !( *mode & (S_IFCHR|S_IFBLK|S_IFIFO|S_IFSOCK) ) )
{
err = ERANGE ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
/* Set the nodetype */
if( *mode & S_IFCHR ) nodetype = CHARACTER_FILE ;
if( *mode & S_IFBLK ) nodetype = BLOCK_FILE ;
if( *mode & S_IFIFO ) nodetype = FIFO_FILE ;
if( *mode & S_IFSOCK ) nodetype = SOCKET_FILE ;
create_arg.dev_spec.major = *major ;
create_arg.dev_spec.minor = *minor ;
/* Create the directory */
/** @todo BUGAZOMEU the gid parameter is not used yet */
if( ( pentry_newobj = cache_inode_create( pfid->pentry,
&obj_name,
nodetype,
pfid->pexport->cache_inode_policy,
*mode,
&create_arg,
&fsalattr,
pwkrdata->ht,
&pwkrdata->cache_inode_client,
&pfid->fsal_op_context,
&cache_status)) == NULL)
{
err = _9p_tools_errno( cache_status ) ; ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
/* Build the qid */
qid_newobj.type = _9P_QTTMP ; /** @todo BUGAZOMEU For wanting of something better */
qid_newobj.version = 0 ;
qid_newobj.path = fsalattr.fileid ;
/* Build the reply */
_9p_setinitptr( cursor, preply, _9P_RMKNOD ) ;
_9p_setptr( cursor, msgtag, u16 ) ;
_9p_setqid( cursor, qid_newobj ) ;
_9p_setendptr( cursor, preply ) ;
_9p_checkbound( cursor, preply, plenout ) ;
LogDebug( COMPONENT_9P, "TMKNOD: tag=%u fid=%u name=%.*s major=%u minor=%u qid=(type=%u,version=%u,path=%llu)",
(u32)*msgtag, *fid, *name_len, name_str, *major, *minor,
qid_newobj.type, qid_newobj.version, (unsigned long long)qid_newobj.path ) ;
return 1 ;
}
int _9p_lopen(struct _9p_request_data *req9p, void *worker_data,
u32 *plenout, char *preply)
{
char *cursor = req9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE;
u16 *msgtag = NULL;
u32 *fid = NULL;
u32 *flags = NULL;
cache_inode_status_t cache_status;
fsal_openflags_t openflags = 0;
struct _9p_fid *pfid = NULL;
/* Get data */
_9p_getptr(cursor, msgtag, u16);
_9p_getptr(cursor, fid, u32);
_9p_getptr(cursor, flags, u32);
LogDebug(COMPONENT_9P, "TLOPEN: tag=%u fid=%u flags=0x%x",
(u32) *msgtag, *fid, *flags);
if (*fid >= _9P_FID_PER_CONN)
return _9p_rerror(req9p, worker_data, msgtag, ERANGE, plenout,
preply);
pfid = req9p->pconn->fids[*fid];
/* Check that it is a valid fid */
if (pfid == NULL || pfid->pentry == NULL) {
LogDebug(COMPONENT_9P, "request on invalid fid=%u", *fid);
return _9p_rerror(req9p, worker_data, msgtag, EIO, plenout,
preply);
}
_9p_openflags2FSAL(flags, &openflags);
op_ctx = &pfid->op_context;
if (pfid->pentry->type == REGULAR_FILE) {
/** @todo: Maybe other types (FIFO, SOCKET,...) require
* to be opened too */
if (!atomic_postinc_uint32_t(&pfid->opens)) {
cache_status = cache_inode_inc_pin_ref(pfid->pentry);
if (cache_status != CACHE_INODE_SUCCESS)
return _9p_rerror(req9p, worker_data, msgtag,
_9p_tools_errno(cache_status),
plenout, preply);
}
cache_status =
cache_inode_open(pfid->pentry, openflags, 0);
if (cache_status != CACHE_INODE_SUCCESS)
return _9p_rerror(req9p, worker_data, msgtag,
_9p_tools_errno(cache_status),
plenout, preply);
}
/* iounit = 0 by default */
pfid->specdata.iounit = _9P_IOUNIT;
/* Build the reply */
_9p_setinitptr(cursor, preply, _9P_RLOPEN);
_9p_setptr(cursor, msgtag, u16);
_9p_setqid(cursor, pfid->qid);
_9p_setptr(cursor, &pfid->specdata.iounit, u32);
_9p_setendptr(cursor, preply);
_9p_checkbound(cursor, preply, plenout);
LogDebug(COMPONENT_9P,
"RLOPEN: tag=%u fid=%u qid=(type=%u,version=%u,path=%llu) iounit=%u",
*msgtag, *fid, (u32) pfid->qid.type, pfid->qid.version,
(unsigned long long)pfid->qid.path, pfid->specdata.iounit);
return 1;
}
int _9p_read(struct _9p_request_data *req9p, u32 *plenout, char *preply)
{
char *cursor = req9p->_9pmsg + _9P_HDR_SIZE + _9P_TYPE_SIZE;
char *databuffer;
u16 *msgtag = NULL;
u32 *fid = NULL;
u64 *offset = NULL;
u32 *count = NULL;
u32 outcount = 0;
struct _9p_fid *pfid = NULL;
size_t read_size = 0;
bool eof_met;
fsal_status_t fsal_status;
/* uint64_t stable_flag = CACHE_INODE_SAFE_WRITE_TO_FS; */
bool sync = false;
/* Get data */
_9p_getptr(cursor, msgtag, u16);
_9p_getptr(cursor, fid, u32);
_9p_getptr(cursor, offset, u64);
_9p_getptr(cursor, count, u32);
LogDebug(COMPONENT_9P, "TREAD: tag=%u fid=%u offset=%llu count=%u",
(u32) *msgtag, *fid, (unsigned long long)*offset, *count);
if (*fid >= _9P_FID_PER_CONN)
return _9p_rerror(req9p, msgtag, ERANGE, plenout, preply);
pfid = req9p->pconn->fids[*fid];
/* Make sure the requested amount of data respects negotiated msize */
if (*count + _9P_ROOM_RREAD > req9p->pconn->msize)
return _9p_rerror(req9p, msgtag, ERANGE, plenout, preply);
/* Check that it is a valid fid */
if (pfid == NULL || pfid->pentry == NULL) {
LogDebug(COMPONENT_9P, "request on invalid fid=%u", *fid);
return _9p_rerror(req9p, msgtag, EIO, plenout, preply);
}
_9p_init_opctx(pfid, req9p);
/* Start building the reply already
* So we don't need to use an intermediate data buffer
*/
_9p_setinitptr(cursor, preply, _9P_RREAD);
_9p_setptr(cursor, msgtag, u16);
databuffer = _9p_getbuffertofill(cursor);
/* Do the job */
if (pfid->xattr != NULL) {
/* Copy the value cached during xattrwalk */
if (*offset > pfid->xattr->xattr_size)
return _9p_rerror(req9p, msgtag, EINVAL, plenout,
preply);
if (pfid->xattr->xattr_write != _9P_XATTR_READ_ONLY)
return _9p_rerror(req9p, msgtag, EINVAL, plenout,
preply);
read_size = MIN(*count,
pfid->xattr->xattr_size - *offset);
memcpy(databuffer,
pfid->xattr->xattr_content + *offset,
read_size);
outcount = read_size;
} else {
if (pfid->pentry->fsal->m_ops.support_ex(pfid->pentry)) {
/* Call the new fsal_read */
fsal_status = fsal_read2(pfid->pentry,
false,
pfid->state,
*offset,
*count,
&read_size,
databuffer,
&eof_met,
NULL);
} else {
/* Call legacy fsal_rdwr */
fsal_status = fsal_rdwr(pfid->pentry,
FSAL_IO_READ,
*offset,
*count,
&read_size,
databuffer,
&eof_met,
&sync,
NULL);
}
/* Get the handle, for stats */
struct gsh_client *client = req9p->pconn->client;
if (client == NULL) {
LogDebug(COMPONENT_9P,
"Cannot get client block for 9P request");
} else {
op_ctx->client = client;
server_stats_io_done(*count, read_size,
FSAL_IS_ERROR(fsal_status), false);
}
if (FSAL_IS_ERROR(fsal_status))
return _9p_rerror(req9p, msgtag,
_9p_tools_errno(fsal_status),
plenout, preply);
outcount = (u32) read_size;
}
_9p_setfilledbuffer(cursor, outcount);
_9p_setendptr(cursor, preply);
_9p_checkbound(cursor, preply, plenout);
LogDebug(COMPONENT_9P, "RREAD: tag=%u fid=%u offset=%llu count=%u",
(u32) *msgtag, *fid, (unsigned long long)*offset, *count);
/**
* @todo read statistics accounting goes here
* modeled on nfs I/O statistics
*/
return 1;
}
int _9p_link( _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 * dfid = NULL ;
u32 * targetfid = NULL ;
u16 * name_len = NULL ;
char * name_str = NULL ;
_9p_fid_t * pdfid = NULL ;
_9p_fid_t * ptargetfid = NULL ;
cache_entry_t * pentry= NULL ;
fsal_attrib_list_t fsalattr ;
cache_inode_status_t cache_status ;
fsal_name_t link_name ;
int rc = 0 ;
int err = 0 ;
if ( !preq9p || !pworker_data || !plenout || !preply )
return -1 ;
/* Get data */
_9p_getptr( cursor, msgtag, u16 ) ;
_9p_getptr( cursor, dfid, u32 ) ;
_9p_getptr( cursor, targetfid, u32 ) ;
_9p_getstr( cursor, name_len, name_str ) ;
LogDebug( COMPONENT_9P, "TLINK: tag=%u dfid=%u targetfid=%u name=%.*s",
(u32)*msgtag, *dfid, *targetfid, *name_len, name_str ) ;
if( *dfid >= _9P_FID_PER_CONN )
{
err = ERANGE ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
pdfid = &preq9p->pconn->fids[*dfid] ;
if( *targetfid >= _9P_FID_PER_CONN )
{
err = ERANGE ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
ptargetfid = &preq9p->pconn->fids[*targetfid] ;
/* Let's do the job */
snprintf( link_name.name, FSAL_MAX_NAME_LEN, "%.*s", *name_len, name_str ) ;
if( cache_inode_link( ptargetfid->pentry,
pdfid->pentry,
&link_name,
ptargetfid->pexport->cache_inode_policy,
&fsalattr,
pwkrdata->ht,
&pwkrdata->cache_inode_client,
&pdfid->fsal_op_context,
&cache_status) != CACHE_INODE_SUCCESS )
{
err = _9p_tools_errno( cache_status ) ; ;
rc = _9p_rerror( preq9p, msgtag, &err, plenout, preply ) ;
return rc ;
}
/* Build the reply */
_9p_setinitptr( cursor, preply, _9P_RLINK ) ;
_9p_setptr( cursor, msgtag, u16 ) ;
_9p_setendptr( cursor, preply ) ;
_9p_checkbound( cursor, preply, plenout ) ;
LogDebug( COMPONENT_9P, "TLINK: tag=%u dfid=%u targetfid=%u name=%.*s",
(u32)*msgtag, *dfid, *targetfid, *name_len, name_str ) ;
return 1 ;
}
