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58 lines
2.2 KiB
58 lines
2.2 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* include/net/9p/transport.h |
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* |
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* Transport Definition |
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* |
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* Copyright (C) 2005 by Latchesar Ionkov <[email protected]> |
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* Copyright (C) 2004-2008 by Eric Van Hensbergen <[email protected]> |
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*/ |
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#ifndef NET_9P_TRANSPORT_H |
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#define NET_9P_TRANSPORT_H |
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#define P9_DEF_MIN_RESVPORT (665U) |
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#define P9_DEF_MAX_RESVPORT (1023U) |
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/** |
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* struct p9_trans_module - transport module interface |
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* @list: used to maintain a list of currently available transports |
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* @name: the human-readable name of the transport |
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* @maxsize: transport provided maximum packet size |
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* @def: set if this transport should be considered the default |
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* @create: member function to create a new connection on this transport |
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* @close: member function to discard a connection on this transport |
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* @request: member function to issue a request to the transport |
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* @cancel: member function to cancel a request (if it hasn't been sent) |
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* @cancelled: member function to notify that a cancelled request will not |
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* receive a reply |
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* |
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* This is the basic API for a transport module which is registered by the |
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* transport module with the 9P core network module and used by the client |
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* to instantiate a new connection on a transport. |
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* |
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* The transport module list is protected by v9fs_trans_lock. |
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*/ |
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struct p9_trans_module { |
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struct list_head list; |
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char *name; /* name of transport */ |
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int maxsize; /* max message size of transport */ |
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int def; /* this transport should be default */ |
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struct module *owner; |
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int (*create)(struct p9_client *, const char *, char *); |
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void (*close) (struct p9_client *); |
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int (*request) (struct p9_client *, struct p9_req_t *req); |
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int (*cancel) (struct p9_client *, struct p9_req_t *req); |
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int (*cancelled)(struct p9_client *, struct p9_req_t *req); |
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int (*zc_request)(struct p9_client *, struct p9_req_t *, |
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struct iov_iter *, struct iov_iter *, int , int, int); |
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int (*show_options)(struct seq_file *, struct p9_client *); |
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}; |
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void v9fs_register_trans(struct p9_trans_module *m); |
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void v9fs_unregister_trans(struct p9_trans_module *m); |
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struct p9_trans_module *v9fs_get_trans_by_name(char *s); |
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struct p9_trans_module *v9fs_get_default_trans(void); |
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void v9fs_put_trans(struct p9_trans_module *m); |
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#endif /* NET_9P_TRANSPORT_H */
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