--- /dev/null
+#ifndef CEPH_RADOS_H
+#define CEPH_RADOS_H
+
+/*
+ * Data types for the Ceph distributed object storage layer RADOS
+ * (Reliable Autonomic Distributed Object Store).
+ */
+
+#include "msgr.h"
+
+/*
+ * fs id
+ */
+struct ceph_fsid {
+ unsigned char fsid[16];
+};
+
+static inline int ceph_fsid_compare(const struct ceph_fsid *a,
+ const struct ceph_fsid *b)
+{
+ return memcmp(a, b, sizeof(*a));
+}
+
+/*
+ * ino, object, etc.
+ */
+typedef __le64 ceph_snapid_t;
+#define CEPH_SNAPDIR ((__u64)(-1)) /* reserved for hidden .snap dir */
+#define CEPH_NOSNAP ((__u64)(-2)) /* "head", "live" revision */
+#define CEPH_MAXSNAP ((__u64)(-3)) /* largest valid snapid */
+
+struct ceph_timespec {
+ __le32 tv_sec;
+ __le32 tv_nsec;
+} __attribute__ ((packed));
+
+
+/*
+ * object layout - how objects are mapped into PGs
+ */
+#define CEPH_OBJECT_LAYOUT_HASH 1
+#define CEPH_OBJECT_LAYOUT_LINEAR 2
+#define CEPH_OBJECT_LAYOUT_HASHINO 3
+
+/*
+ * pg layout -- how PGs are mapped onto (sets of) OSDs
+ */
+#define CEPH_PG_LAYOUT_CRUSH 0
+#define CEPH_PG_LAYOUT_HASH 1
+#define CEPH_PG_LAYOUT_LINEAR 2
+#define CEPH_PG_LAYOUT_HYBRID 3
+
+#define CEPH_PG_MAX_SIZE 16 /* max # osds in a single pg */
+
+/*
+ * placement group.
+ * we encode this into one __le64.
+ */
+struct ceph_pg {
+ __le16 preferred; /* preferred primary osd */
+ __le16 ps; /* placement seed */
+ __le32 pool; /* object pool */
+} __attribute__ ((packed));
+
+/*
+ * pg pool types
+ *
+ * NOTE: These map 1:1 on to the pg_pool_t::TYPE_* values. They are
+ * duplicated here only for CrushCompiler's benefit.
+ */
+#define CEPH_PG_TYPE_REPLICATED 1
+/* #define CEPH_PG_TYPE_RAID4 2 never implemented */
+#define CEPH_PG_TYPE_ERASURE 3
+
+/*
+ * stable_mod func is used to control number of placement groups.
+ * similar to straight-up modulo, but produces a stable mapping as b
+ * increases over time. b is the number of bins, and bmask is the
+ * containing power of 2 minus 1.
+ *
+ * b <= bmask and bmask=(2**n)-1
+ * e.g., b=12 -> bmask=15, b=123 -> bmask=127
+ */
+static inline int ceph_stable_mod(int x, int b, int bmask)
+{
+ if ((x & bmask) < b)
+ return x & bmask;
+ else
+ return x & (bmask >> 1);
+}
+
+/*
+ * object layout - how a given object should be stored.
+ */
+struct ceph_object_layout {
+ struct ceph_pg ol_pgid; /* raw pg, with _full_ ps precision. */
+ __le32 ol_stripe_unit; /* for per-object parity, if any */
+} __attribute__ ((packed));
+
+/*
+ * compound epoch+version, used by storage layer to serialize mutations
+ */
+struct ceph_eversion {
+ __le32 epoch;
+ __le64 version;
+} __attribute__ ((packed));
+
+/*
+ * osd map bits
+ */
+
+/* status bits */
+#define CEPH_OSD_EXISTS (1<<0)
+#define CEPH_OSD_UP (1<<1)
+#define CEPH_OSD_AUTOOUT (1<<2) /* osd was automatically marked out */
+#define CEPH_OSD_NEW (1<<3) /* osd is new, never marked in */
+#define CEPH_OSD_FULL (1<<4) /* osd is at or above full threshold */
+#define CEPH_OSD_NEARFULL (1<<5) /* osd is at or above nearfull threshold */
+#define CEPH_OSD_BACKFILLFULL (1<<6) /* osd is at or above backfillfull threshold */
+#define CEPH_OSD_DESTROYED (1<<7) /* osd has been destroyed */
+#define CEPH_OSD_NOUP (1<<8) /* osd can not be marked up */
+#define CEPH_OSD_NODOWN (1<<9) /* osd can not be marked down */
+#define CEPH_OSD_NOIN (1<<10) /* osd can not be marked in */
+#define CEPH_OSD_NOOUT (1<<11) /* osd can not be marked out */
+
+extern const char *ceph_osd_state_name(int s);
+
+/* osd weights. fixed point value: 0x10000 == 1.0 ("in"), 0 == "out" */
+#define CEPH_OSD_IN 0x10000
+#define CEPH_OSD_OUT 0
+
+#define CEPH_OSD_MAX_PRIMARY_AFFINITY 0x10000
+#define CEPH_OSD_DEFAULT_PRIMARY_AFFINITY 0x10000
+
+
+/*
+ * osd map flag bits
+ */
+#define CEPH_OSDMAP_NEARFULL (1<<0) /* sync writes (near ENOSPC) */
+#define CEPH_OSDMAP_FULL (1<<1) /* no data writes (ENOSPC) */
+#define CEPH_OSDMAP_PAUSERD (1<<2) /* pause all reads */
+#define CEPH_OSDMAP_PAUSEWR (1<<3) /* pause all writes */
+#define CEPH_OSDMAP_PAUSEREC (1<<4) /* pause recovery */
+#define CEPH_OSDMAP_NOUP (1<<5) /* block osd boot */
+#define CEPH_OSDMAP_NODOWN (1<<6) /* block osd mark-down/failure */
+#define CEPH_OSDMAP_NOOUT (1<<7) /* block osd auto mark-out */
+#define CEPH_OSDMAP_NOIN (1<<8) /* block osd auto mark-in */
+#define CEPH_OSDMAP_NOBACKFILL (1<<9) /* block osd backfill */
+#define CEPH_OSDMAP_NORECOVER (1<<10) /* block osd recovery and backfill */
+#define CEPH_OSDMAP_NOSCRUB (1<<11) /* block periodic scrub */
+#define CEPH_OSDMAP_NODEEP_SCRUB (1<<12) /* block periodic deep-scrub */
+#define CEPH_OSDMAP_NOTIERAGENT (1<<13) /* disable tiering agent */
+#define CEPH_OSDMAP_NOREBALANCE (1<<14) /* block osd backfill unless pg is degraded */
+#define CEPH_OSDMAP_SORTBITWISE (1<<15) /* use bitwise hobject_t sort */
+#define CEPH_OSDMAP_REQUIRE_JEWEL (1<<16) /* require jewel for booting osds */
+#define CEPH_OSDMAP_REQUIRE_KRAKEN (1<<17) /* require kraken for booting osds */
+#define CEPH_OSDMAP_REQUIRE_LUMINOUS (1<<18) /* require l for booting osds */
+#define CEPH_OSDMAP_RECOVERY_DELETES (1<<19) /* deletes performed during recovery instead of peering */
+#define CEPH_OSDMAP_PURGED_SNAPDIRS (1<<20) /* osds have converted snapsets */
+
+/* these are hidden in 'ceph status' view */
+#define CEPH_OSDMAP_SEMIHIDDEN_FLAGS (CEPH_OSDMAP_REQUIRE_JEWEL| \
+ CEPH_OSDMAP_REQUIRE_KRAKEN | \
+ CEPH_OSDMAP_REQUIRE_LUMINOUS | \
+ CEPH_OSDMAP_RECOVERY_DELETES | \
+ CEPH_OSDMAP_SORTBITWISE | \
+ CEPH_OSDMAP_PURGED_SNAPDIRS)
+#define CEPH_OSDMAP_LEGACY_REQUIRE_FLAGS (CEPH_OSDMAP_REQUIRE_JEWEL | \
+ CEPH_OSDMAP_REQUIRE_KRAKEN | \
+ CEPH_OSDMAP_REQUIRE_LUMINOUS)
+
+/*
+ * major ceph release numbers
+ */
+#define CEPH_RELEASE_ARGONAUT 1
+#define CEPH_RELEASE_BOBTAIL 2
+#define CEPH_RELEASE_CUTTLEFISH 3
+#define CEPH_RELEASE_DUMPLING 4
+#define CEPH_RELEASE_EMPEROR 5
+#define CEPH_RELEASE_FIREFLY 6
+#define CEPH_RELEASE_GIANT 7
+#define CEPH_RELEASE_HAMMER 8
+#define CEPH_RELEASE_INFERNALIS 9
+#define CEPH_RELEASE_JEWEL 10
+#define CEPH_RELEASE_KRAKEN 11
+#define CEPH_RELEASE_LUMINOUS 12
+#define CEPH_RELEASE_MIMIC 13
+#define CEPH_RELEASE_MAX 14 /* highest + 1 */
+
+extern const char *ceph_release_name(int r);
+extern int ceph_release_from_name(const char *s);
+extern uint64_t ceph_release_features(int r);
+extern int ceph_release_from_features(uint64_t features);
+
+/*
+ * The error code to return when an OSD can't handle a write
+ * because it is too large.
+ */
+#define OSD_WRITETOOBIG EMSGSIZE
+
+/*
+ * osd ops
+ *
+ * WARNING: do not use these op codes directly. Use the helpers
+ * defined below instead. In certain cases, op code behavior was
+ * redefined, resulting in special-cases in the helpers.
+ */
+#define CEPH_OSD_OP_MODE 0xf000
+#define CEPH_OSD_OP_MODE_RD 0x1000
+#define CEPH_OSD_OP_MODE_WR 0x2000
+#define CEPH_OSD_OP_MODE_RMW 0x3000
+#define CEPH_OSD_OP_MODE_SUB 0x4000
+#define CEPH_OSD_OP_MODE_CACHE 0x8000
+
+#define CEPH_OSD_OP_TYPE 0x0f00
+#define CEPH_OSD_OP_TYPE_DATA 0x0200
+#define CEPH_OSD_OP_TYPE_ATTR 0x0300
+#define CEPH_OSD_OP_TYPE_EXEC 0x0400
+#define CEPH_OSD_OP_TYPE_PG 0x0500
+// LEAVE UNUSED 0x0600 used to be multiobject ops
+
+#define __CEPH_OSD_OP1(mode, nr) \
+ (CEPH_OSD_OP_MODE_##mode | (nr))
+
+#define __CEPH_OSD_OP(mode, type, nr) \
+ (CEPH_OSD_OP_MODE_##mode | CEPH_OSD_OP_TYPE_##type | (nr))
+
+#define __CEPH_FORALL_OSD_OPS(f) \
+ /** data **/ \
+ /* read */ \
+ f(READ, __CEPH_OSD_OP(RD, DATA, 1), "read") \
+ f(STAT, __CEPH_OSD_OP(RD, DATA, 2), "stat") \
+ f(MAPEXT, __CEPH_OSD_OP(RD, DATA, 3), "mapext") \
+ f(CHECKSUM, __CEPH_OSD_OP(RD, DATA, 31), "checksum") \
+ \
+ /* fancy read */ \
+ f(MASKTRUNC, __CEPH_OSD_OP(RD, DATA, 4), "masktrunc") \
+ f(SPARSE_READ, __CEPH_OSD_OP(RD, DATA, 5), "sparse-read") \
+ \
+ f(NOTIFY, __CEPH_OSD_OP(RD, DATA, 6), "notify") \
+ f(NOTIFY_ACK, __CEPH_OSD_OP(RD, DATA, 7), "notify-ack") \
+ \
+ /* versioning */ \
+ f(ASSERT_VER, __CEPH_OSD_OP(RD, DATA, 8), "assert-version") \
+ \
+ f(LIST_WATCHERS, __CEPH_OSD_OP(RD, DATA, 9), "list-watchers") \
+ \
+ f(LIST_SNAPS, __CEPH_OSD_OP(RD, DATA, 10), "list-snaps") \
+ \
+ /* sync */ \
+ f(SYNC_READ, __CEPH_OSD_OP(RD, DATA, 11), "sync_read") \
+ \
+ /* write */ \
+ f(WRITE, __CEPH_OSD_OP(WR, DATA, 1), "write") \
+ f(WRITEFULL, __CEPH_OSD_OP(WR, DATA, 2), "writefull") \
+ f(TRUNCATE, __CEPH_OSD_OP(WR, DATA, 3), "truncate") \
+ f(ZERO, __CEPH_OSD_OP(WR, DATA, 4), "zero") \
+ f(DELETE, __CEPH_OSD_OP(WR, DATA, 5), "delete") \
+ \
+ /* fancy write */ \
+ f(APPEND, __CEPH_OSD_OP(WR, DATA, 6), "append") \
+ f(STARTSYNC, __CEPH_OSD_OP(WR, DATA, 7), "startsync") \
+ f(SETTRUNC, __CEPH_OSD_OP(WR, DATA, 8), "settrunc") \
+ f(TRIMTRUNC, __CEPH_OSD_OP(WR, DATA, 9), "trimtrunc") \
+ \
+ f(TMAPUP, __CEPH_OSD_OP(RMW, DATA, 10), "tmapup") \
+ f(TMAPPUT, __CEPH_OSD_OP(WR, DATA, 11), "tmapput") \
+ f(TMAPGET, __CEPH_OSD_OP(RD, DATA, 12), "tmapget") \
+ \
+ f(CREATE, __CEPH_OSD_OP(WR, DATA, 13), "create") \
+ f(ROLLBACK, __CEPH_OSD_OP(WR, DATA, 14), "rollback") \
+ \
+ f(WATCH, __CEPH_OSD_OP(WR, DATA, 15), "watch") \
+ \
+ /* omap */ \
+ f(OMAPGETKEYS, __CEPH_OSD_OP(RD, DATA, 17), "omap-get-keys") \
+ f(OMAPGETVALS, __CEPH_OSD_OP(RD, DATA, 18), "omap-get-vals") \
+ f(OMAPGETHEADER, __CEPH_OSD_OP(RD, DATA, 19), "omap-get-header") \
+ f(OMAPGETVALSBYKEYS, __CEPH_OSD_OP(RD, DATA, 20), "omap-get-vals-by-keys") \
+ f(OMAPSETVALS, __CEPH_OSD_OP(WR, DATA, 21), "omap-set-vals") \
+ f(OMAPSETHEADER, __CEPH_OSD_OP(WR, DATA, 22), "omap-set-header") \
+ f(OMAPCLEAR, __CEPH_OSD_OP(WR, DATA, 23), "omap-clear") \
+ f(OMAPRMKEYS, __CEPH_OSD_OP(WR, DATA, 24), "omap-rm-keys") \
+ f(OMAP_CMP, __CEPH_OSD_OP(RD, DATA, 25), "omap-cmp") \
+ \
+ /* tiering */ \
+ f(COPY_FROM, __CEPH_OSD_OP(WR, DATA, 26), "copy-from") \
+ /* was copy-get-classic */ \
+ f(UNDIRTY, __CEPH_OSD_OP(WR, DATA, 28), "undirty") \
+ f(ISDIRTY, __CEPH_OSD_OP(RD, DATA, 29), "isdirty") \
+ f(COPY_GET, __CEPH_OSD_OP(RD, DATA, 30), "copy-get") \
+ f(CACHE_FLUSH, __CEPH_OSD_OP(CACHE, DATA, 31), "cache-flush") \
+ f(CACHE_EVICT, __CEPH_OSD_OP(CACHE, DATA, 32), "cache-evict") \
+ f(CACHE_TRY_FLUSH, __CEPH_OSD_OP(CACHE, DATA, 33), "cache-try-flush") \
+ \
+ /* convert tmap to omap */ \
+ f(TMAP2OMAP, __CEPH_OSD_OP(RMW, DATA, 34), "tmap2omap") \
+ \
+ /* hints */ \
+ f(SETALLOCHINT, __CEPH_OSD_OP(WR, DATA, 35), "set-alloc-hint") \
+ \
+ /* cache pin/unpin */ \
+ f(CACHE_PIN, __CEPH_OSD_OP(WR, DATA, 36), "cache-pin") \
+ f(CACHE_UNPIN, __CEPH_OSD_OP(WR, DATA, 37), "cache-unpin") \
+ \
+ /* ESX/SCSI */ \
+ f(WRITESAME, __CEPH_OSD_OP(WR, DATA, 38), "write-same") \
+ f(CMPEXT, __CEPH_OSD_OP(RD, DATA, 32), "cmpext") \
+ \
+ /* Extensible */ \
+ f(SET_REDIRECT, __CEPH_OSD_OP(WR, DATA, 39), "set-redirect") \
+ \
+ /** attrs **/ \
+ /* read */ \
+ f(GETXATTR, __CEPH_OSD_OP(RD, ATTR, 1), "getxattr") \
+ f(GETXATTRS, __CEPH_OSD_OP(RD, ATTR, 2), "getxattrs") \
+ f(CMPXATTR, __CEPH_OSD_OP(RD, ATTR, 3), "cmpxattr") \
+ \
+ /* write */ \
+ f(SETXATTR, __CEPH_OSD_OP(WR, ATTR, 1), "setxattr") \
+ f(SETXATTRS, __CEPH_OSD_OP(WR, ATTR, 2), "setxattrs") \
+ f(RESETXATTRS, __CEPH_OSD_OP(WR, ATTR, 3), "resetxattrs") \
+ f(RMXATTR, __CEPH_OSD_OP(WR, ATTR, 4), "rmxattr") \
+ \
+ /** subop **/ \
+ f(PULL, __CEPH_OSD_OP1(SUB, 1), "pull") \
+ f(PUSH, __CEPH_OSD_OP1(SUB, 2), "push") \
+ f(BALANCEREADS, __CEPH_OSD_OP1(SUB, 3), "balance-reads") \
+ f(UNBALANCEREADS, __CEPH_OSD_OP1(SUB, 4), "unbalance-reads") \
+ f(SCRUB, __CEPH_OSD_OP1(SUB, 5), "scrub") \
+ f(SCRUB_RESERVE, __CEPH_OSD_OP1(SUB, 6), "scrub-reserve") \
+ f(SCRUB_UNRESERVE, __CEPH_OSD_OP1(SUB, 7), "scrub-unreserve") \
+ /* 8 used to be scrub-stop */ \
+ f(SCRUB_MAP, __CEPH_OSD_OP1(SUB, 9), "scrub-map") \
+ \
+ /** exec **/ \
+ /* note: the RD bit here is wrong; see special-case below in helper */ \
+ f(CALL, __CEPH_OSD_OP(RD, EXEC, 1), "call") \
+ \
+ /** pg **/ \
+ f(PGLS, __CEPH_OSD_OP(RD, PG, 1), "pgls") \
+ f(PGLS_FILTER, __CEPH_OSD_OP(RD, PG, 2), "pgls-filter") \
+ f(PG_HITSET_LS, __CEPH_OSD_OP(RD, PG, 3), "pg-hitset-ls") \
+ f(PG_HITSET_GET, __CEPH_OSD_OP(RD, PG, 4), "pg-hitset-get") \
+ f(PGNLS, __CEPH_OSD_OP(RD, PG, 5), "pgnls") \
+ f(PGNLS_FILTER, __CEPH_OSD_OP(RD, PG, 6), "pgnls-filter") \
+ f(SCRUBLS, __CEPH_OSD_OP(RD, PG, 7), "scrubls")
+
+enum {
+#define GENERATE_ENUM_ENTRY(op, opcode, str) CEPH_OSD_OP_##op = (opcode),
+__CEPH_FORALL_OSD_OPS(GENERATE_ENUM_ENTRY)
+#undef GENERATE_ENUM_ENTRY
+};
+
+static inline int ceph_osd_op_type_data(int op)
+{
+ return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_DATA;
+}
+static inline int ceph_osd_op_type_attr(int op)
+{
+ return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_ATTR;
+}
+static inline int ceph_osd_op_type_exec(int op)
+{
+ return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_EXEC;
+}
+static inline int ceph_osd_op_type_pg(int op)
+{
+ return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_PG;
+}
+
+static inline int ceph_osd_op_mode_subop(int op)
+{
+ return (op & CEPH_OSD_OP_MODE) == CEPH_OSD_OP_MODE_SUB;
+}
+static inline int ceph_osd_op_mode_read(int op)
+{
+ return (op & CEPH_OSD_OP_MODE_RD) &&
+ op != CEPH_OSD_OP_CALL;
+}
+static inline int ceph_osd_op_mode_modify(int op)
+{
+ return op & CEPH_OSD_OP_MODE_WR;
+}
+static inline int ceph_osd_op_mode_cache(int op)
+{
+ return op & CEPH_OSD_OP_MODE_CACHE;
+}
+static inline int ceph_osd_op_uses_extent(int op)
+{
+ switch(op) {
+ case CEPH_OSD_OP_READ:
+ case CEPH_OSD_OP_MAPEXT:
+ case CEPH_OSD_OP_MASKTRUNC:
+ case CEPH_OSD_OP_SPARSE_READ:
+ case CEPH_OSD_OP_SYNC_READ:
+ case CEPH_OSD_OP_WRITE:
+ case CEPH_OSD_OP_WRITEFULL:
+ case CEPH_OSD_OP_TRUNCATE:
+ case CEPH_OSD_OP_ZERO:
+ case CEPH_OSD_OP_APPEND:
+ case CEPH_OSD_OP_TRIMTRUNC:
+ case CEPH_OSD_OP_CMPEXT:
+ return true;
+ default:
+ return false;
+ }
+}
+
+/*
+ * note that the following tmap stuff is also defined in the ceph librados.h
+ * and objclass.h. Any modification here needs to be updated there
+ */
+#define CEPH_OSD_TMAP_HDR 'h'
+#define CEPH_OSD_TMAP_SET 's'
+#define CEPH_OSD_TMAP_CREATE 'c' /* create key */
+#define CEPH_OSD_TMAP_RM 'r'
+#define CEPH_OSD_TMAP_RMSLOPPY 'R'
+
+extern const char *ceph_osd_op_name(int op);
+
+/*
+ * osd op flags
+ *
+ * An op may be READ, WRITE, or READ|WRITE.
+ */
+enum {
+ CEPH_OSD_FLAG_ACK = 0x0001, /* want (or is) "ack" ack */
+ CEPH_OSD_FLAG_ONNVRAM = 0x0002, /* want (or is) "onnvram" ack */
+ CEPH_OSD_FLAG_ONDISK = 0x0004, /* want (or is) "ondisk" ack */
+ CEPH_OSD_FLAG_RETRY = 0x0008, /* resend attempt */
+ CEPH_OSD_FLAG_READ = 0x0010, /* op may read */
+ CEPH_OSD_FLAG_WRITE = 0x0020, /* op may write */
+ CEPH_OSD_FLAG_ORDERSNAP = 0x0040, /* EOLDSNAP if snapc is out of order */
+ CEPH_OSD_FLAG_PEERSTAT_OLD = 0x0080, /* DEPRECATED msg includes osd_peer_stat */
+ CEPH_OSD_FLAG_BALANCE_READS = 0x0100,
+ CEPH_OSD_FLAG_PARALLELEXEC = 0x0200, /* execute op in parallel */
+ CEPH_OSD_FLAG_PGOP = 0x0400, /* pg op, no object */
+ CEPH_OSD_FLAG_EXEC = 0x0800, /* op may exec */
+ CEPH_OSD_FLAG_EXEC_PUBLIC = 0x1000, /* DEPRECATED op may exec (public) */
+ CEPH_OSD_FLAG_LOCALIZE_READS = 0x2000, /* read from nearby replica, if any */
+ CEPH_OSD_FLAG_RWORDERED = 0x4000, /* order wrt concurrent reads */
+ CEPH_OSD_FLAG_IGNORE_CACHE = 0x8000, /* ignore cache logic */
+ CEPH_OSD_FLAG_SKIPRWLOCKS = 0x10000, /* skip rw locks */
+ CEPH_OSD_FLAG_IGNORE_OVERLAY =0x20000, /* ignore pool overlay */
+ CEPH_OSD_FLAG_FLUSH = 0x40000, /* this is part of flush */
+ CEPH_OSD_FLAG_MAP_SNAP_CLONE =0x80000, /* map snap direct to clone id
+ */
+ CEPH_OSD_FLAG_ENFORCE_SNAPC =0x100000, /* use snapc provided even if
+ pool uses pool snaps */
+ CEPH_OSD_FLAG_REDIRECTED = 0x200000, /* op has been redirected */
+ CEPH_OSD_FLAG_KNOWN_REDIR = 0x400000, /* redirect bit is authoritative */
+ CEPH_OSD_FLAG_FULL_TRY = 0x800000, /* try op despite full flag */
+ CEPH_OSD_FLAG_FULL_FORCE = 0x1000000, /* force op despite full flag */
+ CEPH_OSD_FLAG_IGNORE_REDIRECT = 0x2000000, /* ignore redirection */
+};
+
+enum {
+ CEPH_OSD_OP_FLAG_EXCL = 0x1, /* EXCL object create */
+ CEPH_OSD_OP_FLAG_FAILOK = 0x2, /* continue despite failure */
+ CEPH_OSD_OP_FLAG_FADVISE_RANDOM = 0x4, /* the op is random */
+ CEPH_OSD_OP_FLAG_FADVISE_SEQUENTIAL = 0x8, /* the op is sequential */
+ CEPH_OSD_OP_FLAG_FADVISE_WILLNEED = 0x10,/* data will be accessed in the near future */
+ CEPH_OSD_OP_FLAG_FADVISE_DONTNEED = 0x20,/* data will not be accessed in the near future */
+ CEPH_OSD_OP_FLAG_FADVISE_NOCACHE = 0x40, /* data will be accessed only once by this client */
+};
+
+#define EOLDSNAPC 85 /* ORDERSNAP flag set; writer has old snapc*/
+#define EBLACKLISTED 108 /* blacklisted */
+
+/* xattr comparison */
+enum {
+ CEPH_OSD_CMPXATTR_OP_EQ = 1,
+ CEPH_OSD_CMPXATTR_OP_NE = 2,
+ CEPH_OSD_CMPXATTR_OP_GT = 3,
+ CEPH_OSD_CMPXATTR_OP_GTE = 4,
+ CEPH_OSD_CMPXATTR_OP_LT = 5,
+ CEPH_OSD_CMPXATTR_OP_LTE = 6
+};
+
+enum {
+ CEPH_OSD_CMPXATTR_MODE_STRING = 1,
+ CEPH_OSD_CMPXATTR_MODE_U64 = 2
+};
+
+enum {
+ CEPH_OSD_COPY_FROM_FLAG_FLUSH = 1, /* part of a flush operation */
+ CEPH_OSD_COPY_FROM_FLAG_IGNORE_OVERLAY = 2, /* ignore pool overlay */
+ CEPH_OSD_COPY_FROM_FLAG_IGNORE_CACHE = 4, /* ignore osd cache logic */
+ CEPH_OSD_COPY_FROM_FLAG_MAP_SNAP_CLONE = 8, /* map snap direct to
+ * cloneid */
+ CEPH_OSD_COPY_FROM_FLAG_RWORDERED = 16, /* order with write */
+};
+
+enum {
+ CEPH_OSD_TMAP2OMAP_NULLOK = 1,
+};
+
+enum {
+ CEPH_OSD_WATCH_OP_UNWATCH = 0,
+ CEPH_OSD_WATCH_OP_LEGACY_WATCH = 1,
+ /* note: use only ODD ids to prevent pre-giant code from
+ interpreting the op as UNWATCH */
+ CEPH_OSD_WATCH_OP_WATCH = 3,
+ CEPH_OSD_WATCH_OP_RECONNECT = 5,
+ CEPH_OSD_WATCH_OP_PING = 7,
+};
+
+enum {
+ CEPH_OSD_CHECKSUM_OP_TYPE_XXHASH32 = 0,
+ CEPH_OSD_CHECKSUM_OP_TYPE_XXHASH64 = 1,
+ CEPH_OSD_CHECKSUM_OP_TYPE_CRC32C = 2
+};
+
+const char *ceph_osd_watch_op_name(int o);
+
+enum {
+ CEPH_OSD_ALLOC_HINT_FLAG_SEQUENTIAL_WRITE = 1,
+ CEPH_OSD_ALLOC_HINT_FLAG_RANDOM_WRITE = 2,
+ CEPH_OSD_ALLOC_HINT_FLAG_SEQUENTIAL_READ = 4,
+ CEPH_OSD_ALLOC_HINT_FLAG_RANDOM_READ = 8,
+ CEPH_OSD_ALLOC_HINT_FLAG_APPEND_ONLY = 16,
+ CEPH_OSD_ALLOC_HINT_FLAG_IMMUTABLE = 32,
+ CEPH_OSD_ALLOC_HINT_FLAG_SHORTLIVED = 64,
+ CEPH_OSD_ALLOC_HINT_FLAG_LONGLIVED = 128,
+ CEPH_OSD_ALLOC_HINT_FLAG_COMPRESSIBLE = 256,
+ CEPH_OSD_ALLOC_HINT_FLAG_INCOMPRESSIBLE = 512,
+};
+
+const char *ceph_osd_alloc_hint_flag_name(int f);
+
+enum {
+ CEPH_OSD_BACKOFF_OP_BLOCK = 1,
+ CEPH_OSD_BACKOFF_OP_ACK_BLOCK = 2,
+ CEPH_OSD_BACKOFF_OP_UNBLOCK = 3,
+};
+
+const char *ceph_osd_backoff_op_name(int op);
+
+/*
+ * an individual object operation. each may be accompanied by some data
+ * payload
+ */
+struct ceph_osd_op {
+ __le16 op; /* CEPH_OSD_OP_* */
+ __le32 flags; /* CEPH_OSD_OP_FLAG_* */
+ union {
+ struct {
+ __le64 offset, length;
+ __le64 truncate_size;
+ __le32 truncate_seq;
+ } __attribute__ ((packed)) extent;
+ struct {
+ __le32 name_len;
+ __le32 value_len;
+ __u8 cmp_op; /* CEPH_OSD_CMPXATTR_OP_* */
+ __u8 cmp_mode; /* CEPH_OSD_CMPXATTR_MODE_* */
+ } __attribute__ ((packed)) xattr;
+ struct {
+ __u8 class_len;
+ __u8 method_len;
+ __u8 argc;
+ __le32 indata_len;
+ } __attribute__ ((packed)) cls;
+ struct {
+ __le64 count;
+ __le32 start_epoch; /* for the pgls sequence */
+ } __attribute__ ((packed)) pgls;
+ struct {
+ __le64 snapid;
+ } __attribute__ ((packed)) snap;
+ struct {
+ __le64 cookie;
+ __le64 ver; /* no longer used */
+ __u8 op; /* CEPH_OSD_WATCH_OP_* */
+ __u32 gen; /* registration generation */
+ __u32 timeout; /* connection timeout */
+ } __attribute__ ((packed)) watch;
+ struct {
+ __le64 cookie;
+ } __attribute__ ((packed)) notify;
+ struct {
+ __le64 unused;
+ __le64 ver;
+ } __attribute__ ((packed)) assert_ver;
+ struct {
+ __le64 offset, length;
+ __le64 src_offset;
+ } __attribute__ ((packed)) clonerange;
+ struct {
+ __le64 max; /* max data in reply */
+ } __attribute__ ((packed)) copy_get;
+ struct {
+ __le64 snapid;
+ __le64 src_version;
+ __u8 flags;
+ /*
+ * __le32 flags: CEPH_OSD_OP_FLAG_FADVISE_: mean the fadvise flags for dest object
+ * src_fadvise_flags mean the fadvise flags for src object
+ */
+ __le32 src_fadvise_flags;
+ } __attribute__ ((packed)) copy_from;
+ struct {
+ struct ceph_timespec stamp;
+ } __attribute__ ((packed)) hit_set_get;
+ struct {
+ __u8 flags;
+ } __attribute__ ((packed)) tmap2omap;
+ struct {
+ __le64 expected_object_size;
+ __le64 expected_write_size;
+ __le32 flags; /* CEPH_OSD_OP_ALLOC_HINT_FLAG_* */
+ } __attribute__ ((packed)) alloc_hint;
+ struct {
+ __le64 offset;
+ __le64 length;
+ __le64 data_length;
+ } __attribute__ ((packed)) writesame;
+ struct {
+ __le64 offset;
+ __le64 length;
+ __le32 chunk_size;
+ __u8 type; /* CEPH_OSD_CHECKSUM_OP_TYPE_* */
+ } __attribute__ ((packed)) checksum;
+ };
+ __le32 payload_len;
+} __attribute__ ((packed));
+
+/*
+ * Check the compatibility of struct ceph_osd_op
+ * (2+4+(2*8+8+4)+4) = (sizeof(ceph_osd_op::op) +
+ * sizeof(ceph_osd_op::flags) +
+ * sizeof(ceph_osd_op::extent) +
+ * sizeof(ceph_osd_op::payload_len))
+ */
+#ifdef __cplusplus
+static_assert(sizeof(ceph_osd_op) == (2+4+(2*8+8+4)+4),
+ "sizeof(ceph_osd_op) breaks the compatibility");
+#endif
+
+struct ceph_osd_reply_head {
+ __le32 client_inc; /* client incarnation */
+ __le32 flags;
+ struct ceph_object_layout layout;
+ __le32 osdmap_epoch;
+ struct ceph_eversion reassert_version; /* for replaying uncommitted */
+
+ __le32 result; /* result code */
+
+ __le32 object_len; /* length of object name */
+ __le32 num_ops;
+ struct ceph_osd_op ops[0]; /* ops[], object */
+} __attribute__ ((packed));
+
+
+#endif
Code Review / stor4nfv.git / blobdiff