1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
/******************************************************************************
* Copyright (c) 2011 IBM Corporation
* All rights reserved.
* This program and the accompanying materials
* are made available under the terms of the BSD License
* which accompanies this distribution, and is available at
* http://www.opensource.org/licenses/bsd-license.php
*
* Contributors:
* IBM Corporation - initial implementation
*****************************************************************************/
#ifndef P9_H
#define P9_H
#include <stdint.h>
#define P9_ERROR -1
#define P9_UNKNOWN_VERSION -2
#define P9_R_ERROR -3
#define P9_MSG_TOO_LONG -4
#define P9_UNEXPECTED_MSG -5
#define P9_UNEXPECTED_TAG -6
#define P9_TRANSPORT_ERROR -7
#define P9_NO_TRANSPORT -8
#define P9_NULL_PATH -9
#define P9_PATH_ELEMENT_TOO_LONG -10
#define P9_READ_UNEXPECTED_DATA -11
#define P9_NO_BUFFER -12
#define P9_MSG_SIZE_TOO_BIG -13
#define P9_PARTIAL_WALK 1
typedef int (*p9_transact_t)(void *opaque, uint8_t *tx, int tx_size,
uint8_t *rx, uint32_t *rx_size);
typedef struct {
uint32_t message_size;
char *uname; /* User name. */
char *aname; /* Tree/mount name/path. */
uint32_t fid; /* Represents mount point. */
} p9_connection_t;
typedef struct {
uint32_t fid; /* Identifies the file to P9 server. */
uint32_t iounit; /* Maximum read size in bytes. */
uint8_t type; /* Type of file. */
uint64_t length; /* Length of file. */
p9_connection_t *connection;
} p9_file_t;
void reset_buffers(void);
void p9_reg_transport(p9_transact_t transact_func, void *opaque,
uint8_t *tx_buffer, uint8_t *rx_buffer);
int p9_transaction(p9_connection_t *connection);
int p9_version(p9_connection_t *connection);
int p9_attach(p9_connection_t *connection);
int p9_clunk(p9_connection_t *connection, uint32_t fid);
int p9_walk(p9_connection_t *connection, uint32_t fid, uint32_t new_fid,
uint8_t **pos);
int p9_open(p9_file_t *file, uint8_t mode);
int p9_read(p9_file_t *file, uint8_t *buffer,
uint32_t count, uint64_t offset);
int p9_stat(p9_file_t *file);
#endif
|
