/* * include/net/9p/transport.h * * Transport Definition * * Copyright (C) 2005 by Latchesar Ionkov * Copyright (C) 2004-2008 by Eric Van Hensbergen * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to: * Free Software Foundation * 51 Franklin Street, Fifth Floor * Boston, MA 02111-1301 USA * */ #ifndef NET_9P_TRANSPORT_H #define NET_9P_TRANSPORT_H #define P9_DEF_MIN_RESVPORT (665U) #define P9_DEF_MAX_RESVPORT (1023U) /** * struct p9_trans_module - transport module interface * @list: used to maintain a list of currently available transports * @name: the human-readable name of the transport * @maxsize: transport provided maximum packet size * @def: set if this transport should be considered the default * @create: member function to create a new connection on this transport * @close: member function to discard a connection on this transport * @request: member function to issue a request to the transport * @cancel: member function to cancel a request (if it hasn't been sent) * @cancelled: member function to notify that a cancelled request will not * not receive a reply * * This is the basic API for a transport module which is registered by the * transport module with the 9P core network module and used by the client * to instantiate a new connection on a transport. * * The transport module list is protected by v9fs_trans_lock. */ struct p9_trans_module { struct list_head list; char *name; /* name of transport */ int maxsize; /* max message size of transport */ int def; /* this transport should be default */ struct module *owner; int (*create)(struct p9_client *, const char *, char *); void (*close) (struct p9_client *); int (*request) (struct p9_client *, struct p9_req_t *req); int (*cancel) (struct p9_client *, struct p9_req_t *req); int (*cancelled)(struct p9_client *, struct p9_req_t *req); int (*zc_request)(struct p9_client *, struct p9_req_t *, struct iov_iter *, struct iov_iter *, int , int, int); }; void v9fs_register_trans(struct p9_trans_module *m); void v9fs_unregister_trans(struct p9_trans_module *m); struct p9_trans_module *v9fs_get_trans_by_name(char *s); struct p9_trans_module *v9fs_get_default_trans(void); void v9fs_put_trans(struct p9_trans_module *m); #endif /* NET_9P_TRANSPORT_H */ on value='4'>4space:mode:

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