Anthony Liguori | 9f10751 | 2010-04-29 17:44:44 +0530 | [diff] [blame] | 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 { |
M. Mohan Kumar | be940c8 | 2010-05-10 12:11:03 +0530 | [diff] [blame] | 16 | P9_TSTATFS = 8, |
| 17 | P9_RSTATFS, |
Sripathi Kodi | 00ede4c | 2010-07-20 11:44:41 +0530 | [diff] [blame] | 18 | P9_TGETATTR = 24, |
| 19 | P9_RGETATTR, |
Sripathi Kodi | c79ce73 | 2010-06-17 18:18:47 +0530 | [diff] [blame] | 20 | P9_TSETATTR = 26, |
| 21 | P9_RSETATTR, |
Sripathi Kodi | c18e2f9 | 2010-06-09 14:57:57 +0530 | [diff] [blame] | 22 | P9_TREADDIR = 40, |
| 23 | P9_RREADDIR, |
Venkateswararao Jujjuri (JV) | b2c224b | 2010-06-09 11:21:15 -0700 | [diff] [blame^] | 24 | P9_TLINK = 70, |
| 25 | P9_RLINK, |
Anthony Liguori | 9f10751 | 2010-04-29 17:44:44 +0530 | [diff] [blame] | 26 | P9_TVERSION = 100, |
| 27 | P9_RVERSION, |
| 28 | P9_TAUTH = 102, |
| 29 | P9_RAUTH, |
| 30 | P9_TATTACH = 104, |
| 31 | P9_RATTACH, |
| 32 | P9_TERROR = 106, |
| 33 | P9_RERROR, |
| 34 | P9_TFLUSH = 108, |
| 35 | P9_RFLUSH, |
| 36 | P9_TWALK = 110, |
| 37 | P9_RWALK, |
| 38 | P9_TOPEN = 112, |
| 39 | P9_ROPEN, |
| 40 | P9_TCREATE = 114, |
| 41 | P9_RCREATE, |
| 42 | P9_TREAD = 116, |
| 43 | P9_RREAD, |
| 44 | P9_TWRITE = 118, |
| 45 | P9_RWRITE, |
| 46 | P9_TCLUNK = 120, |
| 47 | P9_RCLUNK, |
| 48 | P9_TREMOVE = 122, |
| 49 | P9_RREMOVE, |
| 50 | P9_TSTAT = 124, |
| 51 | P9_RSTAT, |
| 52 | P9_TWSTAT = 126, |
| 53 | P9_RWSTAT, |
| 54 | }; |
| 55 | |
| 56 | |
| 57 | /* qid.types */ |
| 58 | enum { |
| 59 | P9_QTDIR = 0x80, |
| 60 | P9_QTAPPEND = 0x40, |
| 61 | P9_QTEXCL = 0x20, |
| 62 | P9_QTMOUNT = 0x10, |
| 63 | P9_QTAUTH = 0x08, |
| 64 | P9_QTTMP = 0x04, |
| 65 | P9_QTSYMLINK = 0x02, |
| 66 | P9_QTLINK = 0x01, |
| 67 | P9_QTFILE = 0x00, |
| 68 | }; |
| 69 | |
M. Mohan Kumar | 8415151 | 2010-05-27 13:57:29 +0530 | [diff] [blame] | 70 | enum p9_proto_version { |
| 71 | V9FS_PROTO_2000U = 0x01, |
| 72 | V9FS_PROTO_2000L = 0x02, |
| 73 | }; |
| 74 | |
Anthony Liguori | 9f10751 | 2010-04-29 17:44:44 +0530 | [diff] [blame] | 75 | #define P9_NOTAG (u16)(~0) |
| 76 | #define P9_NOFID (u32)(~0) |
| 77 | #define P9_MAXWELEM 16 |
| 78 | |
M. Mohan Kumar | 5e94c10 | 2010-06-09 19:14:28 +0530 | [diff] [blame] | 79 | /* |
| 80 | * ample room for Twrite/Rread header |
| 81 | * size[4] Tread/Twrite tag[2] fid[4] offset[8] count[4] |
| 82 | */ |
| 83 | #define P9_IOHDRSZ 24 |
| 84 | |
Anthony Liguori | 9f10751 | 2010-04-29 17:44:44 +0530 | [diff] [blame] | 85 | typedef struct V9fsPDU V9fsPDU; |
| 86 | |
| 87 | struct V9fsPDU |
| 88 | { |
| 89 | uint32_t size; |
| 90 | uint16_t tag; |
| 91 | uint8_t id; |
| 92 | VirtQueueElement elem; |
| 93 | QLIST_ENTRY(V9fsPDU) next; |
| 94 | }; |
| 95 | |
| 96 | |
| 97 | /* FIXME |
| 98 | * 1) change user needs to set groups and stuff |
| 99 | */ |
| 100 | |
| 101 | /* from Linux's linux/virtio_9p.h */ |
| 102 | |
| 103 | /* The ID for virtio console */ |
| 104 | #define VIRTIO_ID_9P 9 |
| 105 | #define MAX_REQ 128 |
| 106 | #define MAX_TAG_LEN 32 |
| 107 | |
| 108 | #define BUG_ON(cond) assert(!(cond)) |
| 109 | |
| 110 | typedef struct V9fsFidState V9fsFidState; |
| 111 | |
| 112 | typedef struct V9fsString |
| 113 | { |
| 114 | int16_t size; |
| 115 | char *data; |
| 116 | } V9fsString; |
| 117 | |
| 118 | typedef struct V9fsQID |
| 119 | { |
| 120 | int8_t type; |
| 121 | int32_t version; |
| 122 | int64_t path; |
| 123 | } V9fsQID; |
| 124 | |
| 125 | typedef struct V9fsStat |
| 126 | { |
| 127 | int16_t size; |
| 128 | int16_t type; |
| 129 | int32_t dev; |
| 130 | V9fsQID qid; |
| 131 | int32_t mode; |
| 132 | int32_t atime; |
| 133 | int32_t mtime; |
| 134 | int64_t length; |
| 135 | V9fsString name; |
| 136 | V9fsString uid; |
| 137 | V9fsString gid; |
| 138 | V9fsString muid; |
| 139 | /* 9p2000.u */ |
| 140 | V9fsString extension; |
| 141 | int32_t n_uid; |
| 142 | int32_t n_gid; |
| 143 | int32_t n_muid; |
| 144 | } V9fsStat; |
| 145 | |
| 146 | struct V9fsFidState |
| 147 | { |
| 148 | int32_t fid; |
| 149 | V9fsString path; |
| 150 | int fd; |
| 151 | DIR *dir; |
| 152 | uid_t uid; |
| 153 | V9fsFidState *next; |
| 154 | }; |
| 155 | |
| 156 | typedef struct V9fsState |
| 157 | { |
| 158 | VirtIODevice vdev; |
| 159 | VirtQueue *vq; |
| 160 | V9fsPDU pdus[MAX_REQ]; |
| 161 | QLIST_HEAD(, V9fsPDU) free_list; |
| 162 | V9fsFidState *fid_list; |
| 163 | FileOperations *ops; |
| 164 | FsContext ctx; |
| 165 | uint16_t tag_len; |
| 166 | uint8_t *tag; |
| 167 | size_t config_size; |
M. Mohan Kumar | 8415151 | 2010-05-27 13:57:29 +0530 | [diff] [blame] | 168 | enum p9_proto_version proto_version; |
M. Mohan Kumar | 5e94c10 | 2010-06-09 19:14:28 +0530 | [diff] [blame] | 169 | int32_t msize; |
Anthony Liguori | 9f10751 | 2010-04-29 17:44:44 +0530 | [diff] [blame] | 170 | } V9fsState; |
| 171 | |
Venkateswararao Jujjuri (JV) | fac4f11 | 2010-06-01 13:30:51 -0700 | [diff] [blame] | 172 | typedef struct V9fsCreateState { |
| 173 | V9fsPDU *pdu; |
| 174 | size_t offset; |
| 175 | V9fsFidState *fidp; |
| 176 | V9fsQID qid; |
| 177 | int32_t perm; |
| 178 | int8_t mode; |
| 179 | struct stat stbuf; |
| 180 | V9fsString name; |
| 181 | V9fsString extension; |
| 182 | V9fsString fullname; |
M. Mohan Kumar | 5e94c10 | 2010-06-09 19:14:28 +0530 | [diff] [blame] | 183 | int iounit; |
Venkateswararao Jujjuri (JV) | fac4f11 | 2010-06-01 13:30:51 -0700 | [diff] [blame] | 184 | } V9fsCreateState; |
| 185 | |
| 186 | typedef struct V9fsStatState { |
| 187 | V9fsPDU *pdu; |
| 188 | size_t offset; |
| 189 | V9fsStat v9stat; |
| 190 | V9fsFidState *fidp; |
| 191 | struct stat stbuf; |
| 192 | } V9fsStatState; |
| 193 | |
Sripathi Kodi | 00ede4c | 2010-07-20 11:44:41 +0530 | [diff] [blame] | 194 | typedef struct V9fsStatDotl { |
| 195 | uint64_t st_result_mask; |
| 196 | V9fsQID qid; |
| 197 | uint32_t st_mode; |
| 198 | uint32_t st_uid; |
| 199 | uint32_t st_gid; |
| 200 | uint64_t st_nlink; |
| 201 | uint64_t st_rdev; |
| 202 | uint64_t st_size; |
| 203 | uint64_t st_blksize; |
| 204 | uint64_t st_blocks; |
| 205 | uint64_t st_atime_sec; |
| 206 | uint64_t st_atime_nsec; |
| 207 | uint64_t st_mtime_sec; |
| 208 | uint64_t st_mtime_nsec; |
| 209 | uint64_t st_ctime_sec; |
| 210 | uint64_t st_ctime_nsec; |
| 211 | uint64_t st_btime_sec; |
| 212 | uint64_t st_btime_nsec; |
| 213 | uint64_t st_gen; |
| 214 | uint64_t st_data_version; |
| 215 | } V9fsStatDotl; |
| 216 | |
| 217 | typedef struct V9fsStatStateDotl { |
| 218 | V9fsPDU *pdu; |
| 219 | size_t offset; |
| 220 | V9fsStatDotl v9stat_dotl; |
| 221 | struct stat stbuf; |
| 222 | } V9fsStatStateDotl; |
| 223 | |
| 224 | |
Venkateswararao Jujjuri (JV) | fac4f11 | 2010-06-01 13:30:51 -0700 | [diff] [blame] | 225 | typedef struct V9fsWalkState { |
| 226 | V9fsPDU *pdu; |
| 227 | size_t offset; |
| 228 | int16_t nwnames; |
| 229 | int name_idx; |
| 230 | V9fsQID *qids; |
| 231 | V9fsFidState *fidp; |
| 232 | V9fsFidState *newfidp; |
| 233 | V9fsString path; |
| 234 | V9fsString *wnames; |
| 235 | struct stat stbuf; |
| 236 | } V9fsWalkState; |
| 237 | |
| 238 | typedef struct V9fsOpenState { |
| 239 | V9fsPDU *pdu; |
| 240 | size_t offset; |
| 241 | int8_t mode; |
| 242 | V9fsFidState *fidp; |
| 243 | V9fsQID qid; |
| 244 | struct stat stbuf; |
M. Mohan Kumar | 5e94c10 | 2010-06-09 19:14:28 +0530 | [diff] [blame] | 245 | int iounit; |
Venkateswararao Jujjuri (JV) | fac4f11 | 2010-06-01 13:30:51 -0700 | [diff] [blame] | 246 | } V9fsOpenState; |
| 247 | |
| 248 | typedef struct V9fsReadState { |
| 249 | V9fsPDU *pdu; |
| 250 | size_t offset; |
| 251 | int32_t count; |
| 252 | int32_t total; |
| 253 | int64_t off; |
| 254 | V9fsFidState *fidp; |
| 255 | struct iovec iov[128]; /* FIXME: bad, bad, bad */ |
| 256 | struct iovec *sg; |
| 257 | off_t dir_pos; |
| 258 | struct dirent *dent; |
| 259 | struct stat stbuf; |
| 260 | V9fsString name; |
| 261 | V9fsStat v9stat; |
| 262 | int32_t len; |
| 263 | int32_t cnt; |
| 264 | int32_t max_count; |
| 265 | } V9fsReadState; |
| 266 | |
| 267 | typedef struct V9fsWriteState { |
| 268 | V9fsPDU *pdu; |
| 269 | size_t offset; |
| 270 | int32_t len; |
| 271 | int32_t count; |
| 272 | int32_t total; |
| 273 | int64_t off; |
| 274 | V9fsFidState *fidp; |
| 275 | struct iovec iov[128]; /* FIXME: bad, bad, bad */ |
| 276 | struct iovec *sg; |
| 277 | int cnt; |
| 278 | } V9fsWriteState; |
| 279 | |
| 280 | typedef struct V9fsRemoveState { |
| 281 | V9fsPDU *pdu; |
| 282 | size_t offset; |
| 283 | V9fsFidState *fidp; |
| 284 | } V9fsRemoveState; |
| 285 | |
| 286 | typedef struct V9fsWstatState |
| 287 | { |
| 288 | V9fsPDU *pdu; |
| 289 | size_t offset; |
| 290 | int16_t unused; |
| 291 | V9fsStat v9stat; |
| 292 | V9fsFidState *fidp; |
| 293 | struct stat stbuf; |
| 294 | V9fsString nname; |
| 295 | } V9fsWstatState; |
| 296 | |
Sripathi Kodi | c79ce73 | 2010-06-17 18:18:47 +0530 | [diff] [blame] | 297 | typedef struct V9fsIattr |
| 298 | { |
| 299 | int32_t valid; |
| 300 | int32_t mode; |
| 301 | int32_t uid; |
| 302 | int32_t gid; |
| 303 | int64_t size; |
| 304 | int64_t atime_sec; |
| 305 | int64_t atime_nsec; |
| 306 | int64_t mtime_sec; |
| 307 | int64_t mtime_nsec; |
| 308 | } V9fsIattr; |
| 309 | |
| 310 | typedef struct V9fsSetattrState |
| 311 | { |
| 312 | V9fsPDU *pdu; |
| 313 | size_t offset; |
| 314 | V9fsIattr v9iattr; |
| 315 | V9fsFidState *fidp; |
| 316 | } V9fsSetattrState; |
| 317 | |
Anthony Liguori | 9f10751 | 2010-04-29 17:44:44 +0530 | [diff] [blame] | 318 | struct virtio_9p_config |
| 319 | { |
| 320 | /* number of characters in tag */ |
| 321 | uint16_t tag_len; |
| 322 | /* Variable size tag name */ |
| 323 | uint8_t tag[0]; |
| 324 | } __attribute__((packed)); |
| 325 | |
M. Mohan Kumar | be940c8 | 2010-05-10 12:11:03 +0530 | [diff] [blame] | 326 | typedef struct V9fsStatfs |
| 327 | { |
| 328 | uint32_t f_type; |
| 329 | uint32_t f_bsize; |
| 330 | uint64_t f_blocks; |
| 331 | uint64_t f_bfree; |
| 332 | uint64_t f_bavail; |
| 333 | uint64_t f_files; |
| 334 | uint64_t f_ffree; |
| 335 | uint64_t fsid_val; |
| 336 | uint32_t f_namelen; |
| 337 | } V9fsStatfs; |
| 338 | |
| 339 | typedef struct V9fsStatfsState { |
| 340 | V9fsPDU *pdu; |
| 341 | size_t offset; |
| 342 | int32_t fid; |
| 343 | V9fsStatfs v9statfs; |
| 344 | V9fsFidState *fidp; |
| 345 | struct statfs stbuf; |
| 346 | } V9fsStatfsState; |
| 347 | |
Anthony Liguori | 9f10751 | 2010-04-29 17:44:44 +0530 | [diff] [blame] | 348 | extern size_t pdu_packunpack(void *addr, struct iovec *sg, int sg_count, |
| 349 | size_t offset, size_t size, int pack); |
| 350 | |
| 351 | static inline size_t do_pdu_unpack(void *dst, struct iovec *sg, int sg_count, |
| 352 | size_t offset, size_t size) |
| 353 | { |
| 354 | return pdu_packunpack(dst, sg, sg_count, offset, size, 0); |
| 355 | } |
| 356 | |
| 357 | #endif |