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9f107513 AL |
1 | #ifndef _QEMU_VIRTIO_9P_H |
2 | #define _QEMU_VIRTIO_9P_H | |
3 | ||
4 | #include <sys/types.h> | |
5 | #include <dirent.h> | |
6 | #include <sys/time.h> | |
7 | #include <utime.h> | |
8 | ||
9 | #include "file-op-9p.h" | |
10 | ||
11 | /* The feature bitmap for virtio 9P */ | |
12 | /* The mount point is specified in a config variable */ | |
13 | #define VIRTIO_9P_MOUNT_TAG 0 | |
14 | ||
15 | enum { | |
8f4d1ca5 AB |
16 | P9_TLERROR = 6, |
17 | P9_RLERROR, | |
be940c87 MK |
18 | P9_TSTATFS = 8, |
19 | P9_RSTATFS, | |
771e9d4c MK |
20 | P9_TLOPEN = 12, |
21 | P9_RLOPEN, | |
c1568af5 VJJ |
22 | P9_TLCREATE = 14, |
23 | P9_RLCREATE, | |
08c60fc9 VJJ |
24 | P9_TSYMLINK = 16, |
25 | P9_RSYMLINK, | |
5268cecc MK |
26 | P9_TMKNOD = 18, |
27 | P9_RMKNOD, | |
c7b4b0b3 MK |
28 | P9_TRENAME = 20, |
29 | P9_RRENAME, | |
00ede4c2 SK |
30 | P9_TGETATTR = 24, |
31 | P9_RGETATTR, | |
c79ce737 SK |
32 | P9_TSETATTR = 26, |
33 | P9_RSETATTR, | |
fa32ef88 AK |
34 | P9_TXATTRWALK = 30, |
35 | P9_RXATTRWALK, | |
10b468bd AK |
36 | P9_TXATTRCREATE = 32, |
37 | P9_RXATTRCREATE, | |
c18e2f94 SK |
38 | P9_TREADDIR = 40, |
39 | P9_RREADDIR, | |
b41e95d3 VJJ |
40 | P9_TFSYNC = 50, |
41 | P9_RFSYNC, | |
82cc3ee8 MK |
42 | P9_TLOCK = 52, |
43 | P9_RLOCK, | |
8f354003 MK |
44 | P9_TGETLOCK = 54, |
45 | P9_RGETLOCK, | |
b2c224be VJJ |
46 | P9_TLINK = 70, |
47 | P9_RLINK, | |
b67592ea MK |
48 | P9_TMKDIR = 72, |
49 | P9_RMKDIR, | |
9f107513 AL |
50 | P9_TVERSION = 100, |
51 | P9_RVERSION, | |
52 | P9_TAUTH = 102, | |
53 | P9_RAUTH, | |
54 | P9_TATTACH = 104, | |
55 | P9_RATTACH, | |
56 | P9_TERROR = 106, | |
57 | P9_RERROR, | |
58 | P9_TFLUSH = 108, | |
59 | P9_RFLUSH, | |
60 | P9_TWALK = 110, | |
61 | P9_RWALK, | |
62 | P9_TOPEN = 112, | |
63 | P9_ROPEN, | |
64 | P9_TCREATE = 114, | |
65 | P9_RCREATE, | |
66 | P9_TREAD = 116, | |
67 | P9_RREAD, | |
68 | P9_TWRITE = 118, | |
69 | P9_RWRITE, | |
70 | P9_TCLUNK = 120, | |
71 | P9_RCLUNK, | |
72 | P9_TREMOVE = 122, | |
73 | P9_RREMOVE, | |
74 | P9_TSTAT = 124, | |
75 | P9_RSTAT, | |
76 | P9_TWSTAT = 126, | |
77 | P9_RWSTAT, | |
78 | }; | |
79 | ||
80 | ||
81 | /* qid.types */ | |
82 | enum { | |
83 | P9_QTDIR = 0x80, | |
84 | P9_QTAPPEND = 0x40, | |
85 | P9_QTEXCL = 0x20, | |
86 | P9_QTMOUNT = 0x10, | |
87 | P9_QTAUTH = 0x08, | |
88 | P9_QTTMP = 0x04, | |
89 | P9_QTSYMLINK = 0x02, | |
90 | P9_QTLINK = 0x01, | |
91 | P9_QTFILE = 0x00, | |
92 | }; | |
93 | ||
84151514 MK |
94 | enum p9_proto_version { |
95 | V9FS_PROTO_2000U = 0x01, | |
96 | V9FS_PROTO_2000L = 0x02, | |
97 | }; | |
98 | ||
9f107513 AL |
99 | #define P9_NOTAG (u16)(~0) |
100 | #define P9_NOFID (u32)(~0) | |
101 | #define P9_MAXWELEM 16 | |
102 | ||
5e94c103 MK |
103 | /* |
104 | * ample room for Twrite/Rread header | |
105 | * size[4] Tread/Twrite tag[2] fid[4] offset[8] count[4] | |
106 | */ | |
107 | #define P9_IOHDRSZ 24 | |
108 | ||
9f107513 AL |
109 | typedef struct V9fsPDU V9fsPDU; |
110 | ||
111 | struct V9fsPDU | |
112 | { | |
113 | uint32_t size; | |
114 | uint16_t tag; | |
115 | uint8_t id; | |
116 | VirtQueueElement elem; | |
117 | QLIST_ENTRY(V9fsPDU) next; | |
118 | }; | |
119 | ||
120 | ||
121 | /* FIXME | |
122 | * 1) change user needs to set groups and stuff | |
123 | */ | |
124 | ||
125 | /* from Linux's linux/virtio_9p.h */ | |
126 | ||
127 | /* The ID for virtio console */ | |
128 | #define VIRTIO_ID_9P 9 | |
129 | #define MAX_REQ 128 | |
130 | #define MAX_TAG_LEN 32 | |
131 | ||
132 | #define BUG_ON(cond) assert(!(cond)) | |
133 | ||
134 | typedef struct V9fsFidState V9fsFidState; | |
135 | ||
136 | typedef struct V9fsString | |
137 | { | |
138 | int16_t size; | |
139 | char *data; | |
140 | } V9fsString; | |
141 | ||
142 | typedef struct V9fsQID | |
143 | { | |
144 | int8_t type; | |
145 | int32_t version; | |
146 | int64_t path; | |
147 | } V9fsQID; | |
148 | ||
149 | typedef struct V9fsStat | |
150 | { | |
151 | int16_t size; | |
152 | int16_t type; | |
153 | int32_t dev; | |
154 | V9fsQID qid; | |
155 | int32_t mode; | |
156 | int32_t atime; | |
157 | int32_t mtime; | |
158 | int64_t length; | |
159 | V9fsString name; | |
160 | V9fsString uid; | |
161 | V9fsString gid; | |
162 | V9fsString muid; | |
163 | /* 9p2000.u */ | |
164 | V9fsString extension; | |
165 | int32_t n_uid; | |
166 | int32_t n_gid; | |
167 | int32_t n_muid; | |
168 | } V9fsStat; | |
169 | ||
d62dbb51 AK |
170 | enum { |
171 | P9_FID_NONE = 0, | |
172 | P9_FID_FILE, | |
173 | P9_FID_DIR, | |
174 | P9_FID_XATTR, | |
175 | }; | |
176 | ||
177 | typedef struct V9fsXattr | |
178 | { | |
179 | int64_t copied_len; | |
180 | int64_t len; | |
181 | void *value; | |
182 | V9fsString name; | |
183 | int flags; | |
184 | } V9fsXattr; | |
185 | ||
9f107513 AL |
186 | struct V9fsFidState |
187 | { | |
d62dbb51 | 188 | int fid_type; |
9f107513 AL |
189 | int32_t fid; |
190 | V9fsString path; | |
d62dbb51 AK |
191 | union { |
192 | int fd; | |
193 | DIR *dir; | |
194 | V9fsXattr xattr; | |
195 | } fs; | |
9f107513 AL |
196 | uid_t uid; |
197 | V9fsFidState *next; | |
198 | }; | |
199 | ||
200 | typedef struct V9fsState | |
201 | { | |
202 | VirtIODevice vdev; | |
203 | VirtQueue *vq; | |
204 | V9fsPDU pdus[MAX_REQ]; | |
205 | QLIST_HEAD(, V9fsPDU) free_list; | |
206 | V9fsFidState *fid_list; | |
207 | FileOperations *ops; | |
208 | FsContext ctx; | |
209 | uint16_t tag_len; | |
210 | uint8_t *tag; | |
211 | size_t config_size; | |
84151514 | 212 | enum p9_proto_version proto_version; |
5e94c103 | 213 | int32_t msize; |
9f107513 AL |
214 | } V9fsState; |
215 | ||
fac4f111 VJJ |
216 | typedef struct V9fsCreateState { |
217 | V9fsPDU *pdu; | |
218 | size_t offset; | |
219 | V9fsFidState *fidp; | |
220 | V9fsQID qid; | |
221 | int32_t perm; | |
222 | int8_t mode; | |
223 | struct stat stbuf; | |
224 | V9fsString name; | |
225 | V9fsString extension; | |
226 | V9fsString fullname; | |
5e94c103 | 227 | int iounit; |
fac4f111 VJJ |
228 | } V9fsCreateState; |
229 | ||
c1568af5 VJJ |
230 | typedef struct V9fsLcreateState { |
231 | V9fsPDU *pdu; | |
232 | size_t offset; | |
233 | V9fsFidState *fidp; | |
234 | V9fsQID qid; | |
235 | int32_t iounit; | |
236 | struct stat stbuf; | |
237 | V9fsString name; | |
238 | V9fsString fullname; | |
239 | } V9fsLcreateState; | |
240 | ||
fac4f111 VJJ |
241 | typedef struct V9fsStatState { |
242 | V9fsPDU *pdu; | |
243 | size_t offset; | |
244 | V9fsStat v9stat; | |
245 | V9fsFidState *fidp; | |
246 | struct stat stbuf; | |
247 | } V9fsStatState; | |
248 | ||
00ede4c2 SK |
249 | typedef struct V9fsStatDotl { |
250 | uint64_t st_result_mask; | |
251 | V9fsQID qid; | |
252 | uint32_t st_mode; | |
253 | uint32_t st_uid; | |
254 | uint32_t st_gid; | |
255 | uint64_t st_nlink; | |
256 | uint64_t st_rdev; | |
257 | uint64_t st_size; | |
258 | uint64_t st_blksize; | |
259 | uint64_t st_blocks; | |
260 | uint64_t st_atime_sec; | |
261 | uint64_t st_atime_nsec; | |
262 | uint64_t st_mtime_sec; | |
263 | uint64_t st_mtime_nsec; | |
264 | uint64_t st_ctime_sec; | |
265 | uint64_t st_ctime_nsec; | |
266 | uint64_t st_btime_sec; | |
267 | uint64_t st_btime_nsec; | |
268 | uint64_t st_gen; | |
269 | uint64_t st_data_version; | |
270 | } V9fsStatDotl; | |
271 | ||
272 | typedef struct V9fsStatStateDotl { | |
273 | V9fsPDU *pdu; | |
274 | size_t offset; | |
275 | V9fsStatDotl v9stat_dotl; | |
276 | struct stat stbuf; | |
277 | } V9fsStatStateDotl; | |
278 | ||
279 | ||
fac4f111 VJJ |
280 | typedef struct V9fsWalkState { |
281 | V9fsPDU *pdu; | |
282 | size_t offset; | |
283 | int16_t nwnames; | |
284 | int name_idx; | |
285 | V9fsQID *qids; | |
286 | V9fsFidState *fidp; | |
287 | V9fsFidState *newfidp; | |
288 | V9fsString path; | |
289 | V9fsString *wnames; | |
290 | struct stat stbuf; | |
291 | } V9fsWalkState; | |
292 | ||
293 | typedef struct V9fsOpenState { | |
294 | V9fsPDU *pdu; | |
295 | size_t offset; | |
771e9d4c | 296 | int32_t mode; |
fac4f111 VJJ |
297 | V9fsFidState *fidp; |
298 | V9fsQID qid; | |
299 | struct stat stbuf; | |
5e94c103 | 300 | int iounit; |
fac4f111 VJJ |
301 | } V9fsOpenState; |
302 | ||
303 | typedef struct V9fsReadState { | |
304 | V9fsPDU *pdu; | |
305 | size_t offset; | |
306 | int32_t count; | |
307 | int32_t total; | |
308 | int64_t off; | |
309 | V9fsFidState *fidp; | |
310 | struct iovec iov[128]; /* FIXME: bad, bad, bad */ | |
311 | struct iovec *sg; | |
312 | off_t dir_pos; | |
313 | struct dirent *dent; | |
314 | struct stat stbuf; | |
315 | V9fsString name; | |
316 | V9fsStat v9stat; | |
317 | int32_t len; | |
318 | int32_t cnt; | |
319 | int32_t max_count; | |
320 | } V9fsReadState; | |
321 | ||
322 | typedef struct V9fsWriteState { | |
323 | V9fsPDU *pdu; | |
324 | size_t offset; | |
325 | int32_t len; | |
326 | int32_t count; | |
327 | int32_t total; | |
328 | int64_t off; | |
329 | V9fsFidState *fidp; | |
330 | struct iovec iov[128]; /* FIXME: bad, bad, bad */ | |
331 | struct iovec *sg; | |
332 | int cnt; | |
333 | } V9fsWriteState; | |
334 | ||
335 | typedef struct V9fsRemoveState { | |
336 | V9fsPDU *pdu; | |
337 | size_t offset; | |
338 | V9fsFidState *fidp; | |
339 | } V9fsRemoveState; | |
340 | ||
341 | typedef struct V9fsWstatState | |
342 | { | |
343 | V9fsPDU *pdu; | |
344 | size_t offset; | |
345 | int16_t unused; | |
346 | V9fsStat v9stat; | |
347 | V9fsFidState *fidp; | |
348 | struct stat stbuf; | |
fac4f111 VJJ |
349 | } V9fsWstatState; |
350 | ||
08c60fc9 VJJ |
351 | typedef struct V9fsSymlinkState |
352 | { | |
353 | V9fsPDU *pdu; | |
354 | size_t offset; | |
355 | V9fsString name; | |
356 | V9fsString symname; | |
357 | V9fsString fullname; | |
358 | V9fsFidState *dfidp; | |
359 | V9fsQID qid; | |
360 | struct stat stbuf; | |
361 | } V9fsSymlinkState; | |
362 | ||
c79ce737 SK |
363 | typedef struct V9fsIattr |
364 | { | |
365 | int32_t valid; | |
366 | int32_t mode; | |
367 | int32_t uid; | |
368 | int32_t gid; | |
369 | int64_t size; | |
370 | int64_t atime_sec; | |
371 | int64_t atime_nsec; | |
372 | int64_t mtime_sec; | |
373 | int64_t mtime_nsec; | |
374 | } V9fsIattr; | |
375 | ||
376 | typedef struct V9fsSetattrState | |
377 | { | |
378 | V9fsPDU *pdu; | |
379 | size_t offset; | |
380 | V9fsIattr v9iattr; | |
381 | V9fsFidState *fidp; | |
382 | } V9fsSetattrState; | |
383 | ||
9f107513 AL |
384 | struct virtio_9p_config |
385 | { | |
386 | /* number of characters in tag */ | |
387 | uint16_t tag_len; | |
388 | /* Variable size tag name */ | |
389 | uint8_t tag[0]; | |
390 | } __attribute__((packed)); | |
391 | ||
be940c87 MK |
392 | typedef struct V9fsStatfs |
393 | { | |
394 | uint32_t f_type; | |
395 | uint32_t f_bsize; | |
396 | uint64_t f_blocks; | |
397 | uint64_t f_bfree; | |
398 | uint64_t f_bavail; | |
399 | uint64_t f_files; | |
400 | uint64_t f_ffree; | |
401 | uint64_t fsid_val; | |
402 | uint32_t f_namelen; | |
403 | } V9fsStatfs; | |
404 | ||
405 | typedef struct V9fsStatfsState { | |
406 | V9fsPDU *pdu; | |
407 | size_t offset; | |
408 | int32_t fid; | |
409 | V9fsStatfs v9statfs; | |
410 | V9fsFidState *fidp; | |
411 | struct statfs stbuf; | |
412 | } V9fsStatfsState; | |
413 | ||
5268cecc MK |
414 | typedef struct V9fsMkState { |
415 | V9fsPDU *pdu; | |
416 | size_t offset; | |
417 | V9fsQID qid; | |
418 | struct stat stbuf; | |
419 | V9fsString name; | |
420 | V9fsString fullname; | |
421 | } V9fsMkState; | |
422 | ||
c7b4b0b3 MK |
423 | typedef struct V9fsRenameState { |
424 | V9fsPDU *pdu; | |
425 | V9fsFidState *fidp; | |
426 | size_t offset; | |
427 | int32_t newdirfid; | |
428 | V9fsString name; | |
429 | } V9fsRenameState; | |
430 | ||
fa32ef88 AK |
431 | typedef struct V9fsXattrState |
432 | { | |
433 | V9fsPDU *pdu; | |
434 | size_t offset; | |
435 | V9fsFidState *file_fidp; | |
436 | V9fsFidState *xattr_fidp; | |
437 | V9fsString name; | |
438 | int64_t size; | |
439 | int flags; | |
440 | void *value; | |
441 | } V9fsXattrState; | |
442 | ||
82cc3ee8 MK |
443 | #define P9_LOCK_SUCCESS 0 |
444 | #define P9_LOCK_BLOCKED 1 | |
445 | #define P9_LOCK_ERROR 2 | |
446 | #define P9_LOCK_GRACE 3 | |
447 | ||
448 | #define P9_LOCK_FLAGS_BLOCK 1 | |
449 | #define P9_LOCK_FLAGS_RECLAIM 2 | |
450 | ||
451 | typedef struct V9fsFlock | |
452 | { | |
453 | uint8_t type; | |
454 | uint32_t flags; | |
455 | uint64_t start; /* absolute offset */ | |
456 | uint64_t length; | |
457 | uint32_t proc_id; | |
458 | V9fsString client_id; | |
459 | } V9fsFlock; | |
460 | ||
461 | typedef struct V9fsLockState | |
462 | { | |
463 | V9fsPDU *pdu; | |
464 | size_t offset; | |
465 | int8_t status; | |
466 | struct stat stbuf; | |
467 | V9fsFidState *fidp; | |
468 | V9fsFlock *flock; | |
469 | } V9fsLockState; | |
470 | ||
8f354003 MK |
471 | typedef struct V9fsGetlock |
472 | { | |
473 | uint8_t type; | |
474 | uint64_t start; /* absolute offset */ | |
475 | uint64_t length; | |
476 | uint32_t proc_id; | |
477 | V9fsString client_id; | |
478 | } V9fsGetlock; | |
479 | ||
480 | typedef struct V9fsGetlockState | |
481 | { | |
482 | V9fsPDU *pdu; | |
483 | size_t offset; | |
484 | struct stat stbuf; | |
485 | V9fsFidState *fidp; | |
486 | V9fsGetlock *glock; | |
487 | } V9fsGetlockState; | |
488 | ||
489 | ||
9f107513 AL |
490 | extern size_t pdu_packunpack(void *addr, struct iovec *sg, int sg_count, |
491 | size_t offset, size_t size, int pack); | |
492 | ||
493 | static inline size_t do_pdu_unpack(void *dst, struct iovec *sg, int sg_count, | |
494 | size_t offset, size_t size) | |
495 | { | |
496 | return pdu_packunpack(dst, sg, sg_count, offset, size, 0); | |
497 | } | |
498 | ||
499 | #endif |