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1.1 ! root 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 "fsdev/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 { ! 16: P9_TLERROR = 6, ! 17: P9_RLERROR, ! 18: P9_TSTATFS = 8, ! 19: P9_RSTATFS, ! 20: P9_TLOPEN = 12, ! 21: P9_RLOPEN, ! 22: P9_TLCREATE = 14, ! 23: P9_RLCREATE, ! 24: P9_TSYMLINK = 16, ! 25: P9_RSYMLINK, ! 26: P9_TMKNOD = 18, ! 27: P9_RMKNOD, ! 28: P9_TRENAME = 20, ! 29: P9_RRENAME, ! 30: P9_TREADLINK = 22, ! 31: P9_RREADLINK, ! 32: P9_TGETATTR = 24, ! 33: P9_RGETATTR, ! 34: P9_TSETATTR = 26, ! 35: P9_RSETATTR, ! 36: P9_TXATTRWALK = 30, ! 37: P9_RXATTRWALK, ! 38: P9_TXATTRCREATE = 32, ! 39: P9_RXATTRCREATE, ! 40: P9_TREADDIR = 40, ! 41: P9_RREADDIR, ! 42: P9_TFSYNC = 50, ! 43: P9_RFSYNC, ! 44: P9_TLOCK = 52, ! 45: P9_RLOCK, ! 46: P9_TGETLOCK = 54, ! 47: P9_RGETLOCK, ! 48: P9_TLINK = 70, ! 49: P9_RLINK, ! 50: P9_TMKDIR = 72, ! 51: P9_RMKDIR, ! 52: P9_TVERSION = 100, ! 53: P9_RVERSION, ! 54: P9_TAUTH = 102, ! 55: P9_RAUTH, ! 56: P9_TATTACH = 104, ! 57: P9_RATTACH, ! 58: P9_TERROR = 106, ! 59: P9_RERROR, ! 60: P9_TFLUSH = 108, ! 61: P9_RFLUSH, ! 62: P9_TWALK = 110, ! 63: P9_RWALK, ! 64: P9_TOPEN = 112, ! 65: P9_ROPEN, ! 66: P9_TCREATE = 114, ! 67: P9_RCREATE, ! 68: P9_TREAD = 116, ! 69: P9_RREAD, ! 70: P9_TWRITE = 118, ! 71: P9_RWRITE, ! 72: P9_TCLUNK = 120, ! 73: P9_RCLUNK, ! 74: P9_TREMOVE = 122, ! 75: P9_RREMOVE, ! 76: P9_TSTAT = 124, ! 77: P9_RSTAT, ! 78: P9_TWSTAT = 126, ! 79: P9_RWSTAT, ! 80: }; ! 81: ! 82: ! 83: /* qid.types */ ! 84: enum { ! 85: P9_QTDIR = 0x80, ! 86: P9_QTAPPEND = 0x40, ! 87: P9_QTEXCL = 0x20, ! 88: P9_QTMOUNT = 0x10, ! 89: P9_QTAUTH = 0x08, ! 90: P9_QTTMP = 0x04, ! 91: P9_QTSYMLINK = 0x02, ! 92: P9_QTLINK = 0x01, ! 93: P9_QTFILE = 0x00, ! 94: }; ! 95: ! 96: enum p9_proto_version { ! 97: V9FS_PROTO_2000U = 0x01, ! 98: V9FS_PROTO_2000L = 0x02, ! 99: }; ! 100: ! 101: #define P9_NOTAG (u16)(~0) ! 102: #define P9_NOFID (u32)(~0) ! 103: #define P9_MAXWELEM 16 ! 104: static inline const char *rpath(FsContext *ctx, const char *path, char *buffer) ! 105: { ! 106: snprintf(buffer, PATH_MAX, "%s/%s", ctx->fs_root, path); ! 107: return buffer; ! 108: } ! 109: ! 110: /* ! 111: * ample room for Twrite/Rread header ! 112: * size[4] Tread/Twrite tag[2] fid[4] offset[8] count[4] ! 113: */ ! 114: #define P9_IOHDRSZ 24 ! 115: ! 116: typedef struct V9fsPDU V9fsPDU; ! 117: ! 118: struct V9fsPDU ! 119: { ! 120: uint32_t size; ! 121: uint16_t tag; ! 122: uint8_t id; ! 123: VirtQueueElement elem; ! 124: QLIST_ENTRY(V9fsPDU) next; ! 125: }; ! 126: ! 127: ! 128: /* FIXME ! 129: * 1) change user needs to set groups and stuff ! 130: */ ! 131: ! 132: /* from Linux's linux/virtio_9p.h */ ! 133: ! 134: /* The ID for virtio console */ ! 135: #define VIRTIO_ID_9P 9 ! 136: #define MAX_REQ 128 ! 137: #define MAX_TAG_LEN 32 ! 138: ! 139: #define BUG_ON(cond) assert(!(cond)) ! 140: ! 141: typedef struct V9fsFidState V9fsFidState; ! 142: ! 143: typedef struct V9fsString ! 144: { ! 145: int16_t size; ! 146: char *data; ! 147: } V9fsString; ! 148: ! 149: typedef struct V9fsQID ! 150: { ! 151: int8_t type; ! 152: int32_t version; ! 153: int64_t path; ! 154: } V9fsQID; ! 155: ! 156: typedef struct V9fsStat ! 157: { ! 158: int16_t size; ! 159: int16_t type; ! 160: int32_t dev; ! 161: V9fsQID qid; ! 162: int32_t mode; ! 163: int32_t atime; ! 164: int32_t mtime; ! 165: int64_t length; ! 166: V9fsString name; ! 167: V9fsString uid; ! 168: V9fsString gid; ! 169: V9fsString muid; ! 170: /* 9p2000.u */ ! 171: V9fsString extension; ! 172: int32_t n_uid; ! 173: int32_t n_gid; ! 174: int32_t n_muid; ! 175: } V9fsStat; ! 176: ! 177: enum { ! 178: P9_FID_NONE = 0, ! 179: P9_FID_FILE, ! 180: P9_FID_DIR, ! 181: P9_FID_XATTR, ! 182: }; ! 183: ! 184: typedef struct V9fsXattr ! 185: { ! 186: int64_t copied_len; ! 187: int64_t len; ! 188: void *value; ! 189: V9fsString name; ! 190: int flags; ! 191: } V9fsXattr; ! 192: ! 193: struct V9fsFidState ! 194: { ! 195: int fid_type; ! 196: int32_t fid; ! 197: V9fsString path; ! 198: union { ! 199: int fd; ! 200: DIR *dir; ! 201: V9fsXattr xattr; ! 202: } fs; ! 203: uid_t uid; ! 204: V9fsFidState *next; ! 205: }; ! 206: ! 207: typedef struct V9fsState ! 208: { ! 209: VirtIODevice vdev; ! 210: VirtQueue *vq; ! 211: V9fsPDU pdus[MAX_REQ]; ! 212: QLIST_HEAD(, V9fsPDU) free_list; ! 213: V9fsFidState *fid_list; ! 214: FileOperations *ops; ! 215: FsContext ctx; ! 216: uint16_t tag_len; ! 217: uint8_t *tag; ! 218: size_t config_size; ! 219: enum p9_proto_version proto_version; ! 220: int32_t msize; ! 221: } V9fsState; ! 222: ! 223: typedef struct V9fsCreateState { ! 224: V9fsPDU *pdu; ! 225: size_t offset; ! 226: V9fsFidState *fidp; ! 227: V9fsQID qid; ! 228: int32_t perm; ! 229: int8_t mode; ! 230: struct stat stbuf; ! 231: V9fsString name; ! 232: V9fsString extension; ! 233: V9fsString fullname; ! 234: int iounit; ! 235: } V9fsCreateState; ! 236: ! 237: typedef struct V9fsLcreateState { ! 238: V9fsPDU *pdu; ! 239: size_t offset; ! 240: V9fsFidState *fidp; ! 241: V9fsQID qid; ! 242: int32_t iounit; ! 243: struct stat stbuf; ! 244: V9fsString name; ! 245: V9fsString fullname; ! 246: } V9fsLcreateState; ! 247: ! 248: typedef struct V9fsStatState { ! 249: V9fsPDU *pdu; ! 250: size_t offset; ! 251: V9fsStat v9stat; ! 252: V9fsFidState *fidp; ! 253: struct stat stbuf; ! 254: } V9fsStatState; ! 255: ! 256: typedef struct V9fsStatDotl { ! 257: uint64_t st_result_mask; ! 258: V9fsQID qid; ! 259: uint32_t st_mode; ! 260: uint32_t st_uid; ! 261: uint32_t st_gid; ! 262: uint64_t st_nlink; ! 263: uint64_t st_rdev; ! 264: uint64_t st_size; ! 265: uint64_t st_blksize; ! 266: uint64_t st_blocks; ! 267: uint64_t st_atime_sec; ! 268: uint64_t st_atime_nsec; ! 269: uint64_t st_mtime_sec; ! 270: uint64_t st_mtime_nsec; ! 271: uint64_t st_ctime_sec; ! 272: uint64_t st_ctime_nsec; ! 273: uint64_t st_btime_sec; ! 274: uint64_t st_btime_nsec; ! 275: uint64_t st_gen; ! 276: uint64_t st_data_version; ! 277: } V9fsStatDotl; ! 278: ! 279: typedef struct V9fsStatStateDotl { ! 280: V9fsPDU *pdu; ! 281: size_t offset; ! 282: V9fsStatDotl v9stat_dotl; ! 283: struct stat stbuf; ! 284: } V9fsStatStateDotl; ! 285: ! 286: ! 287: typedef struct V9fsWalkState { ! 288: V9fsPDU *pdu; ! 289: size_t offset; ! 290: uint16_t nwnames; ! 291: int name_idx; ! 292: V9fsQID *qids; ! 293: V9fsFidState *fidp; ! 294: V9fsFidState *newfidp; ! 295: V9fsString path; ! 296: V9fsString *wnames; ! 297: struct stat stbuf; ! 298: } V9fsWalkState; ! 299: ! 300: typedef struct V9fsOpenState { ! 301: V9fsPDU *pdu; ! 302: size_t offset; ! 303: int32_t mode; ! 304: V9fsFidState *fidp; ! 305: V9fsQID qid; ! 306: struct stat stbuf; ! 307: int iounit; ! 308: } V9fsOpenState; ! 309: ! 310: typedef struct V9fsReadState { ! 311: V9fsPDU *pdu; ! 312: size_t offset; ! 313: int32_t count; ! 314: int32_t total; ! 315: int64_t off; ! 316: V9fsFidState *fidp; ! 317: struct iovec iov[128]; /* FIXME: bad, bad, bad */ ! 318: struct iovec *sg; ! 319: off_t dir_pos; ! 320: struct dirent *dent; ! 321: struct stat stbuf; ! 322: V9fsString name; ! 323: V9fsStat v9stat; ! 324: int32_t len; ! 325: int32_t cnt; ! 326: int32_t max_count; ! 327: } V9fsReadState; ! 328: ! 329: typedef struct V9fsWriteState { ! 330: V9fsPDU *pdu; ! 331: size_t offset; ! 332: int32_t len; ! 333: int32_t count; ! 334: int32_t total; ! 335: int64_t off; ! 336: V9fsFidState *fidp; ! 337: struct iovec iov[128]; /* FIXME: bad, bad, bad */ ! 338: struct iovec *sg; ! 339: int cnt; ! 340: } V9fsWriteState; ! 341: ! 342: typedef struct V9fsRemoveState { ! 343: V9fsPDU *pdu; ! 344: size_t offset; ! 345: V9fsFidState *fidp; ! 346: } V9fsRemoveState; ! 347: ! 348: typedef struct V9fsWstatState ! 349: { ! 350: V9fsPDU *pdu; ! 351: size_t offset; ! 352: int16_t unused; ! 353: V9fsStat v9stat; ! 354: V9fsFidState *fidp; ! 355: struct stat stbuf; ! 356: } V9fsWstatState; ! 357: ! 358: typedef struct V9fsSymlinkState ! 359: { ! 360: V9fsPDU *pdu; ! 361: size_t offset; ! 362: V9fsString name; ! 363: V9fsString symname; ! 364: V9fsString fullname; ! 365: V9fsFidState *dfidp; ! 366: V9fsQID qid; ! 367: struct stat stbuf; ! 368: } V9fsSymlinkState; ! 369: ! 370: typedef struct V9fsIattr ! 371: { ! 372: int32_t valid; ! 373: int32_t mode; ! 374: int32_t uid; ! 375: int32_t gid; ! 376: int64_t size; ! 377: int64_t atime_sec; ! 378: int64_t atime_nsec; ! 379: int64_t mtime_sec; ! 380: int64_t mtime_nsec; ! 381: } V9fsIattr; ! 382: ! 383: typedef struct V9fsSetattrState ! 384: { ! 385: V9fsPDU *pdu; ! 386: size_t offset; ! 387: V9fsIattr v9iattr; ! 388: V9fsFidState *fidp; ! 389: } V9fsSetattrState; ! 390: ! 391: struct virtio_9p_config ! 392: { ! 393: /* number of characters in tag */ ! 394: uint16_t tag_len; ! 395: /* Variable size tag name */ ! 396: uint8_t tag[0]; ! 397: } __attribute__((packed)); ! 398: ! 399: typedef struct V9fsStatfs ! 400: { ! 401: uint32_t f_type; ! 402: uint32_t f_bsize; ! 403: uint64_t f_blocks; ! 404: uint64_t f_bfree; ! 405: uint64_t f_bavail; ! 406: uint64_t f_files; ! 407: uint64_t f_ffree; ! 408: uint64_t fsid_val; ! 409: uint32_t f_namelen; ! 410: } V9fsStatfs; ! 411: ! 412: typedef struct V9fsStatfsState { ! 413: V9fsPDU *pdu; ! 414: size_t offset; ! 415: int32_t fid; ! 416: V9fsStatfs v9statfs; ! 417: V9fsFidState *fidp; ! 418: struct statfs stbuf; ! 419: } V9fsStatfsState; ! 420: ! 421: typedef struct V9fsMkState { ! 422: V9fsPDU *pdu; ! 423: size_t offset; ! 424: V9fsQID qid; ! 425: struct stat stbuf; ! 426: V9fsString name; ! 427: V9fsString fullname; ! 428: } V9fsMkState; ! 429: ! 430: typedef struct V9fsRenameState { ! 431: V9fsPDU *pdu; ! 432: V9fsFidState *fidp; ! 433: size_t offset; ! 434: int32_t newdirfid; ! 435: V9fsString name; ! 436: } V9fsRenameState; ! 437: ! 438: typedef struct V9fsXattrState ! 439: { ! 440: V9fsPDU *pdu; ! 441: size_t offset; ! 442: V9fsFidState *file_fidp; ! 443: V9fsFidState *xattr_fidp; ! 444: V9fsString name; ! 445: int64_t size; ! 446: int flags; ! 447: void *value; ! 448: } V9fsXattrState; ! 449: ! 450: #define P9_LOCK_SUCCESS 0 ! 451: #define P9_LOCK_BLOCKED 1 ! 452: #define P9_LOCK_ERROR 2 ! 453: #define P9_LOCK_GRACE 3 ! 454: ! 455: #define P9_LOCK_FLAGS_BLOCK 1 ! 456: #define P9_LOCK_FLAGS_RECLAIM 2 ! 457: ! 458: typedef struct V9fsFlock ! 459: { ! 460: uint8_t type; ! 461: uint32_t flags; ! 462: uint64_t start; /* absolute offset */ ! 463: uint64_t length; ! 464: uint32_t proc_id; ! 465: V9fsString client_id; ! 466: } V9fsFlock; ! 467: ! 468: typedef struct V9fsLockState ! 469: { ! 470: V9fsPDU *pdu; ! 471: size_t offset; ! 472: int8_t status; ! 473: struct stat stbuf; ! 474: V9fsFidState *fidp; ! 475: V9fsFlock *flock; ! 476: } V9fsLockState; ! 477: ! 478: typedef struct V9fsGetlock ! 479: { ! 480: uint8_t type; ! 481: uint64_t start; /* absolute offset */ ! 482: uint64_t length; ! 483: uint32_t proc_id; ! 484: V9fsString client_id; ! 485: } V9fsGetlock; ! 486: ! 487: typedef struct V9fsGetlockState ! 488: { ! 489: V9fsPDU *pdu; ! 490: size_t offset; ! 491: struct stat stbuf; ! 492: V9fsFidState *fidp; ! 493: V9fsGetlock *glock; ! 494: } V9fsGetlockState; ! 495: ! 496: typedef struct V9fsReadLinkState ! 497: { ! 498: V9fsPDU *pdu; ! 499: size_t offset; ! 500: V9fsString target; ! 501: } V9fsReadLinkState; ! 502: ! 503: size_t pdu_packunpack(void *addr, struct iovec *sg, int sg_count, ! 504: size_t offset, size_t size, int pack); ! 505: ! 506: static inline size_t do_pdu_unpack(void *dst, struct iovec *sg, int sg_count, ! 507: size_t offset, size_t size) ! 508: { ! 509: return pdu_packunpack(dst, sg, sg_count, offset, size, 0); ! 510: } ! 511: ! 512: extern void handle_9p_output(VirtIODevice *vdev, VirtQueue *vq); ! 513: ! 514: #endif
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