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Commit | Line | Data |
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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 */ |