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1 | 9f107513 | Anthony Liguori | #ifndef _QEMU_VIRTIO_9P_H
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2 | 9f107513 | Anthony Liguori | #define _QEMU_VIRTIO_9P_H
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3 | 9f107513 | Anthony Liguori | |
4 | 9f107513 | Anthony Liguori | #include <sys/types.h> |
5 | 9f107513 | Anthony Liguori | #include <dirent.h> |
6 | 9f107513 | Anthony Liguori | #include <sys/time.h> |
7 | 9f107513 | Anthony Liguori | #include <utime.h> |
8 | 9f107513 | Anthony Liguori | |
9 | 9f107513 | Anthony Liguori | #include "file-op-9p.h" |
10 | 9f107513 | Anthony Liguori | |
11 | 9f107513 | Anthony Liguori | /* The feature bitmap for virtio 9P */
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12 | 9f107513 | Anthony Liguori | /* The mount point is specified in a config variable */
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13 | 9f107513 | Anthony Liguori | #define VIRTIO_9P_MOUNT_TAG 0 |
14 | 9f107513 | Anthony Liguori | |
15 | 9f107513 | Anthony Liguori | enum {
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16 | 9f107513 | Anthony Liguori | P9_TVERSION = 100,
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17 | 9f107513 | Anthony Liguori | P9_RVERSION, |
18 | 9f107513 | Anthony Liguori | P9_TAUTH = 102,
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19 | 9f107513 | Anthony Liguori | P9_RAUTH, |
20 | 9f107513 | Anthony Liguori | P9_TATTACH = 104,
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21 | 9f107513 | Anthony Liguori | P9_RATTACH, |
22 | 9f107513 | Anthony Liguori | P9_TERROR = 106,
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23 | 9f107513 | Anthony Liguori | P9_RERROR, |
24 | 9f107513 | Anthony Liguori | P9_TFLUSH = 108,
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25 | 9f107513 | Anthony Liguori | P9_RFLUSH, |
26 | 9f107513 | Anthony Liguori | P9_TWALK = 110,
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27 | 9f107513 | Anthony Liguori | P9_RWALK, |
28 | 9f107513 | Anthony Liguori | P9_TOPEN = 112,
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29 | 9f107513 | Anthony Liguori | P9_ROPEN, |
30 | 9f107513 | Anthony Liguori | P9_TCREATE = 114,
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31 | 9f107513 | Anthony Liguori | P9_RCREATE, |
32 | 9f107513 | Anthony Liguori | P9_TREAD = 116,
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33 | 9f107513 | Anthony Liguori | P9_RREAD, |
34 | 9f107513 | Anthony Liguori | P9_TWRITE = 118,
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35 | 9f107513 | Anthony Liguori | P9_RWRITE, |
36 | 9f107513 | Anthony Liguori | P9_TCLUNK = 120,
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37 | 9f107513 | Anthony Liguori | P9_RCLUNK, |
38 | 9f107513 | Anthony Liguori | P9_TREMOVE = 122,
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39 | 9f107513 | Anthony Liguori | P9_RREMOVE, |
40 | 9f107513 | Anthony Liguori | P9_TSTAT = 124,
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41 | 9f107513 | Anthony Liguori | P9_RSTAT, |
42 | 9f107513 | Anthony Liguori | P9_TWSTAT = 126,
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43 | 9f107513 | Anthony Liguori | P9_RWSTAT, |
44 | 9f107513 | Anthony Liguori | }; |
45 | 9f107513 | Anthony Liguori | |
46 | 9f107513 | Anthony Liguori | |
47 | 9f107513 | Anthony Liguori | /* qid.types */
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48 | 9f107513 | Anthony Liguori | enum {
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49 | 9f107513 | Anthony Liguori | P9_QTDIR = 0x80,
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50 | 9f107513 | Anthony Liguori | P9_QTAPPEND = 0x40,
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51 | 9f107513 | Anthony Liguori | P9_QTEXCL = 0x20,
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52 | 9f107513 | Anthony Liguori | P9_QTMOUNT = 0x10,
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53 | 9f107513 | Anthony Liguori | P9_QTAUTH = 0x08,
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54 | 9f107513 | Anthony Liguori | P9_QTTMP = 0x04,
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55 | 9f107513 | Anthony Liguori | P9_QTSYMLINK = 0x02,
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56 | 9f107513 | Anthony Liguori | P9_QTLINK = 0x01,
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57 | 9f107513 | Anthony Liguori | P9_QTFILE = 0x00,
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58 | 9f107513 | Anthony Liguori | }; |
59 | 9f107513 | Anthony Liguori | |
60 | 9f107513 | Anthony Liguori | #define P9_NOTAG (u16)(~0) |
61 | 9f107513 | Anthony Liguori | #define P9_NOFID (u32)(~0) |
62 | 9f107513 | Anthony Liguori | #define P9_MAXWELEM 16 |
63 | 9f107513 | Anthony Liguori | |
64 | 9f107513 | Anthony Liguori | typedef struct V9fsPDU V9fsPDU; |
65 | 9f107513 | Anthony Liguori | |
66 | 9f107513 | Anthony Liguori | struct V9fsPDU
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67 | 9f107513 | Anthony Liguori | { |
68 | 9f107513 | Anthony Liguori | uint32_t size; |
69 | 9f107513 | Anthony Liguori | uint16_t tag; |
70 | 9f107513 | Anthony Liguori | uint8_t id; |
71 | 9f107513 | Anthony Liguori | VirtQueueElement elem; |
72 | 9f107513 | Anthony Liguori | QLIST_ENTRY(V9fsPDU) next; |
73 | 9f107513 | Anthony Liguori | }; |
74 | 9f107513 | Anthony Liguori | |
75 | 9f107513 | Anthony Liguori | |
76 | 9f107513 | Anthony Liguori | /* FIXME
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77 | 9f107513 | Anthony Liguori | * 1) change user needs to set groups and stuff
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78 | 9f107513 | Anthony Liguori | */
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79 | 9f107513 | Anthony Liguori | |
80 | 9f107513 | Anthony Liguori | /* from Linux's linux/virtio_9p.h */
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81 | 9f107513 | Anthony Liguori | |
82 | 9f107513 | Anthony Liguori | /* The ID for virtio console */
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83 | 9f107513 | Anthony Liguori | #define VIRTIO_ID_9P 9 |
84 | 9f107513 | Anthony Liguori | #define MAX_REQ 128 |
85 | 9f107513 | Anthony Liguori | #define MAX_TAG_LEN 32 |
86 | 9f107513 | Anthony Liguori | |
87 | 9f107513 | Anthony Liguori | #define BUG_ON(cond) assert(!(cond))
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88 | 9f107513 | Anthony Liguori | |
89 | 9f107513 | Anthony Liguori | typedef struct V9fsFidState V9fsFidState; |
90 | 9f107513 | Anthony Liguori | |
91 | 9f107513 | Anthony Liguori | typedef struct V9fsString |
92 | 9f107513 | Anthony Liguori | { |
93 | 9f107513 | Anthony Liguori | int16_t size; |
94 | 9f107513 | Anthony Liguori | char *data;
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95 | 9f107513 | Anthony Liguori | } V9fsString; |
96 | 9f107513 | Anthony Liguori | |
97 | 9f107513 | Anthony Liguori | typedef struct V9fsQID |
98 | 9f107513 | Anthony Liguori | { |
99 | 9f107513 | Anthony Liguori | int8_t type; |
100 | 9f107513 | Anthony Liguori | int32_t version; |
101 | 9f107513 | Anthony Liguori | int64_t path; |
102 | 9f107513 | Anthony Liguori | } V9fsQID; |
103 | 9f107513 | Anthony Liguori | |
104 | 9f107513 | Anthony Liguori | typedef struct V9fsStat |
105 | 9f107513 | Anthony Liguori | { |
106 | 9f107513 | Anthony Liguori | int16_t size; |
107 | 9f107513 | Anthony Liguori | int16_t type; |
108 | 9f107513 | Anthony Liguori | int32_t dev; |
109 | 9f107513 | Anthony Liguori | V9fsQID qid; |
110 | 9f107513 | Anthony Liguori | int32_t mode; |
111 | 9f107513 | Anthony Liguori | int32_t atime; |
112 | 9f107513 | Anthony Liguori | int32_t mtime; |
113 | 9f107513 | Anthony Liguori | int64_t length; |
114 | 9f107513 | Anthony Liguori | V9fsString name; |
115 | 9f107513 | Anthony Liguori | V9fsString uid; |
116 | 9f107513 | Anthony Liguori | V9fsString gid; |
117 | 9f107513 | Anthony Liguori | V9fsString muid; |
118 | 9f107513 | Anthony Liguori | /* 9p2000.u */
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119 | 9f107513 | Anthony Liguori | V9fsString extension; |
120 | 9f107513 | Anthony Liguori | int32_t n_uid; |
121 | 9f107513 | Anthony Liguori | int32_t n_gid; |
122 | 9f107513 | Anthony Liguori | int32_t n_muid; |
123 | 9f107513 | Anthony Liguori | } V9fsStat; |
124 | 9f107513 | Anthony Liguori | |
125 | 9f107513 | Anthony Liguori | struct V9fsFidState
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126 | 9f107513 | Anthony Liguori | { |
127 | 9f107513 | Anthony Liguori | int32_t fid; |
128 | 9f107513 | Anthony Liguori | V9fsString path; |
129 | 9f107513 | Anthony Liguori | int fd;
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130 | 9f107513 | Anthony Liguori | DIR *dir; |
131 | 9f107513 | Anthony Liguori | uid_t uid; |
132 | 9f107513 | Anthony Liguori | V9fsFidState *next; |
133 | 9f107513 | Anthony Liguori | }; |
134 | 9f107513 | Anthony Liguori | |
135 | 9f107513 | Anthony Liguori | typedef struct V9fsState |
136 | 9f107513 | Anthony Liguori | { |
137 | 9f107513 | Anthony Liguori | VirtIODevice vdev; |
138 | 9f107513 | Anthony Liguori | VirtQueue *vq; |
139 | 9f107513 | Anthony Liguori | V9fsPDU pdus[MAX_REQ]; |
140 | 9f107513 | Anthony Liguori | QLIST_HEAD(, V9fsPDU) free_list; |
141 | 9f107513 | Anthony Liguori | V9fsFidState *fid_list; |
142 | 9f107513 | Anthony Liguori | FileOperations *ops; |
143 | 9f107513 | Anthony Liguori | FsContext ctx; |
144 | 9f107513 | Anthony Liguori | uint16_t tag_len; |
145 | 9f107513 | Anthony Liguori | uint8_t *tag; |
146 | 9f107513 | Anthony Liguori | size_t config_size; |
147 | 9f107513 | Anthony Liguori | } V9fsState; |
148 | 9f107513 | Anthony Liguori | |
149 | 9f107513 | Anthony Liguori | struct virtio_9p_config
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150 | 9f107513 | Anthony Liguori | { |
151 | 9f107513 | Anthony Liguori | /* number of characters in tag */
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152 | 9f107513 | Anthony Liguori | uint16_t tag_len; |
153 | 9f107513 | Anthony Liguori | /* Variable size tag name */
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154 | 9f107513 | Anthony Liguori | uint8_t tag[0];
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155 | 9f107513 | Anthony Liguori | } __attribute__((packed)); |
156 | 9f107513 | Anthony Liguori | |
157 | 9f107513 | Anthony Liguori | extern size_t pdu_packunpack(void *addr, struct iovec *sg, int sg_count, |
158 | 9f107513 | Anthony Liguori | size_t offset, size_t size, int pack);
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159 | 9f107513 | Anthony Liguori | |
160 | 9f107513 | Anthony Liguori | static inline size_t do_pdu_unpack(void *dst, struct iovec *sg, int sg_count, |
161 | 9f107513 | Anthony Liguori | size_t offset, size_t size) |
162 | 9f107513 | Anthony Liguori | { |
163 | 9f107513 | Anthony Liguori | return pdu_packunpack(dst, sg, sg_count, offset, size, 0); |
164 | 9f107513 | Anthony Liguori | } |
165 | 9f107513 | Anthony Liguori | |
166 | 9f107513 | Anthony Liguori | #endif |