projects / mirror_ubuntu-zesty-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 426cc91a | 1 | /* |
| bd238fb4 | 2 | * include/net/9p/transport.h |
| 426cc91a EVH |
3 | * |
| 4 | * Transport Definition | |
| 5 | * | |
| 3cf6429a | 6 | * Copyright (C) 2005 by Latchesar Ionkov <lucho@ionkov.net> |
| 8a0dc95f | 7 | * Copyright (C) 2004-2008 by Eric Van Hensbergen <ericvh@gmail.com> |
| 426cc91a EVH |
8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify | |
| 42e8c509 EVH |
10 | * it under the terms of the GNU General Public License version 2 |
| 11 | * as published by the Free Software Foundation. | |
| 426cc91a EVH |
12 | * |
| 13 | * This program is distributed in the hope that it will be useful, | |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | * GNU General Public License for more details. | |
| 17 | * | |
| 18 | * You should have received a copy of the GNU General Public License | |
| 19 | * along with this program; if not, write to: | |
| 20 | * Free Software Foundation | |
| 21 | * 51 Franklin Street, Fifth Floor | |
| 22 | * Boston, MA 02111-1301 USA | |
| 23 | * | |
| 24 | */ | |
| 25 | ||
| bd238fb4 LI |
26 | #ifndef NET_9P_TRANSPORT_H |
| 27 | #define NET_9P_TRANSPORT_H | |
| 28 | ||
| 6f69c395 VJJ |
29 | #define P9_TRANS_PREF_PAYLOAD_MASK 0x1 |
| 30 | ||
| 31 | /* Default. Add Payload to PDU before sending it down to transport layer */ | |
| 32 | #define P9_TRANS_PREF_PAYLOAD_DEF 0x0 | |
| 25985edc | 33 | /* Send pay load separately to transport layer along with PDU.*/ |
| 6f69c395 VJJ |
34 | #define P9_TRANS_PREF_PAYLOAD_SEP 0x1 |
| 35 | ||
| ee443996 EVH |
36 | /** |
| 37 | * struct p9_trans_module - transport module interface | |
| 38 | * @list: used to maintain a list of currently available transports | |
| 39 | * @name: the human-readable name of the transport | |
| 40 | * @maxsize: transport provided maximum packet size | |
| 6f69c395 | 41 | * @pref: Preferences of this transport |
| ee443996 EVH |
42 | * @def: set if this transport should be considered the default |
| 43 | * @create: member function to create a new connection on this transport | |
| 91b8534f EVH |
44 | * @request: member function to issue a request to the transport |
| 45 | * @cancel: member function to cancel a request (if it hasn't been sent) | |
| ee443996 EVH |
46 | * |
| 47 | * This is the basic API for a transport module which is registered by the | |
| 48 | * transport module with the 9P core network module and used by the client | |
| 49 | * to instantiate a new connection on a transport. | |
| 50 | * | |
| 8b81ef58 | 51 | * BUGS: the transport module list isn't protected. |
| ee443996 EVH |
52 | */ |
| 53 | ||
| a80d923e EVH |
54 | struct p9_trans_module { |
| 55 | struct list_head list; | |
| 56 | char *name; /* name of transport */ | |
| 57 | int maxsize; /* max message size of transport */ | |
| 6f69c395 | 58 | int pref; /* Preferences of this transport */ |
| a80d923e | 59 | int def; /* this transport should be default */ |
| 72029fe8 | 60 | struct module *owner; |
| 8b81ef58 EVH |
61 | int (*create)(struct p9_client *, const char *, char *); |
| 62 | void (*close) (struct p9_client *); | |
| 91b8534f EVH |
63 | int (*request) (struct p9_client *, struct p9_req_t *req); |
| 64 | int (*cancel) (struct p9_client *, struct p9_req_t *req); | |
| 426cc91a EVH |
65 | }; |
| 66 | ||
| a80d923e | 67 | void v9fs_register_trans(struct p9_trans_module *m); |
| 72029fe8 TH |
68 | void v9fs_unregister_trans(struct p9_trans_module *m); |
| 69 | struct p9_trans_module *v9fs_get_trans_by_name(const substring_t *name); | |
| 70 | struct p9_trans_module *v9fs_get_default_trans(void); | |
| 71 | void v9fs_put_trans(struct p9_trans_module *m); | |
| bd238fb4 | 72 | #endif /* NET_9P_TRANSPORT_H */ |