--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+
+#ifndef CEPH_CLIENT_H
+#define CEPH_CLIENT_H
+
+#include "include/types.h"
+
+// stl
+#include <string>
+#include <memory>
+#include <set>
+#include <map>
+#include <fstream>
+using std::set;
+using std::map;
+using std::fstream;
+
+#include "include/unordered_set.h"
+#include "include/unordered_map.h"
+#include "include/filepath.h"
+#include "include/interval_set.h"
+#include "include/lru.h"
+#include "mds/mdstypes.h"
+#include "msg/Dispatcher.h"
+#include "msg/Messenger.h"
+
+#include "common/Mutex.h"
+#include "common/Timer.h"
+#include "common/Finisher.h"
+#include "common/compiler_extensions.h"
+#include "common/cmdparse.h"
+#include "common/CommandTable.h"
+
+#include "osdc/ObjectCacher.h"
+
+#include "InodeRef.h"
+#include "UserPerm.h"
+#include "include/cephfs/ceph_statx.h"
+
+class FSMap;
+class FSMapUser;
+class MonClient;
+
+class CephContext;
+class MClientReply;
+class MClientRequest;
+class MClientSession;
+class MClientRequest;
+class MClientRequestForward;
+struct MClientLease;
+class MClientCaps;
+class MClientCapRelease;
+
+struct DirStat;
+struct LeaseStat;
+struct InodeStat;
+
+class Filer;
+class Objecter;
+class WritebackHandler;
+
+class PerfCounters;
+class MDSMap;
+class Message;
+
+enum {
+ l_c_first = 20000,
+ l_c_reply,
+ l_c_lat,
+ l_c_wrlat,
+ l_c_last,
+};
+
+
+class MDSCommandOp : public CommandOp
+{
+ public:
+ mds_gid_t mds_gid;
+
+ MDSCommandOp(ceph_tid_t t) : CommandOp(t) {}
+};
+
+/* error code for ceph_fuse */
+#define CEPH_FUSE_NO_MDS_UP -(1<<2) /* no mds up deteced in ceph_fuse */
+
+// ============================================
+// types for my local metadata cache
+/* basic structure:
+
+ - Dentries live in an LRU loop. they get expired based on last access.
+ see include/lru.h. items can be bumped to "mid" or "top" of list, etc.
+ - Inode has ref count for each Fh, Dir, or Dentry that points to it.
+ - when Inode ref goes to 0, it's expired.
+ - when Dir is empty, it's removed (and it's Inode ref--)
+
+*/
+
+/* getdir result */
+struct DirEntry {
+ string d_name;
+ struct stat st;
+ int stmask;
+ explicit DirEntry(const string &s) : d_name(s), stmask(0) {}
+ DirEntry(const string &n, struct stat& s, int stm) : d_name(n), st(s), stmask(stm) {}
+};
+
+struct Cap;
+class Dir;
+class Dentry;
+struct SnapRealm;
+struct Fh;
+struct CapSnap;
+
+struct MetaSession;
+struct MetaRequest;
+class ceph_lock_state_t;
+
+
+typedef void (*client_ino_callback_t)(void *handle, vinodeno_t ino, int64_t off, int64_t len);
+
+typedef void (*client_dentry_callback_t)(void *handle, vinodeno_t dirino,
+ vinodeno_t ino, string& name);
+typedef int (*client_remount_callback_t)(void *handle);
+
+typedef int (*client_getgroups_callback_t)(void *handle, gid_t **sgids);
+typedef void(*client_switch_interrupt_callback_t)(void *handle, void *data);
+typedef mode_t (*client_umask_callback_t)(void *handle);
+
+struct client_callback_args {
+ void *handle;
+ client_ino_callback_t ino_cb;
+ client_dentry_callback_t dentry_cb;
+ client_switch_interrupt_callback_t switch_intr_cb;
+ client_remount_callback_t remount_cb;
+ client_getgroups_callback_t getgroups_cb;
+ client_umask_callback_t umask_cb;
+};
+
+// ========================================================
+// client interface
+
+struct dir_result_t {
+ static const int SHIFT = 28;
+ static const int64_t MASK = (1 << SHIFT) - 1;
+ static const int64_t HASH = 0xFFULL << (SHIFT + 24); // impossible frag bits
+ static const loff_t END = 1ULL << (SHIFT + 32);
+
+ static uint64_t make_fpos(unsigned h, unsigned l, bool hash) {
+ uint64_t v = ((uint64_t)h<< SHIFT) | (uint64_t)l;
+ if (hash)
+ v |= HASH;
+ else
+ assert((v & HASH) != HASH);
+ return v;
+ }
+ static unsigned fpos_high(uint64_t p) {
+ unsigned v = (p & (END-1)) >> SHIFT;
+ if ((p & HASH) == HASH)
+ return ceph_frag_value(v);
+ return v;
+ }
+ static unsigned fpos_low(uint64_t p) {
+ return p & MASK;
+ }
+ static int fpos_cmp(uint64_t l, uint64_t r) {
+ int c = ceph_frag_compare(fpos_high(l), fpos_high(r));
+ if (c)
+ return c;
+ if (fpos_low(l) == fpos_low(r))
+ return 0;
+ return fpos_low(l) < fpos_low(r) ? -1 : 1;
+ }
+
+ InodeRef inode;
+ int64_t offset; // hash order:
+ // (0xff << 52) | ((24 bits hash) << 28) |
+ // (the nth entry has hash collision);
+ // frag+name order;
+ // ((frag value) << 28) | (the nth entry in frag);
+
+ unsigned next_offset; // offset of next chunk (last_name's + 1)
+ string last_name; // last entry in previous chunk
+
+ uint64_t release_count;
+ uint64_t ordered_count;
+ unsigned cache_index;
+ int start_shared_gen; // dir shared_gen at start of readdir
+ UserPerm perms;
+
+ frag_t buffer_frag;
+
+ struct dentry {
+ int64_t offset;
+ string name;
+ InodeRef inode;
+ dentry(int64_t o) : offset(o) {}
+ dentry(int64_t o, const string& n, const InodeRef& in) :
+ offset(o), name(n), inode(in) {}
+ };
+ struct dentry_off_lt {
+ bool operator()(const dentry& d, int64_t off) const {
+ return dir_result_t::fpos_cmp(d.offset, off) < 0;
+ }
+ };
+ vector<dentry> buffer;
+
+ explicit dir_result_t(Inode *in, const UserPerm& perms);
+
+ unsigned offset_high() { return fpos_high(offset); }
+ unsigned offset_low() { return fpos_low(offset); }
+
+ void set_end() { offset |= END; }
+ bool at_end() { return (offset & END); }
+
+ void set_hash_order() { offset |= HASH; }
+ bool hash_order() { return (offset & HASH) == HASH; }
+
+ bool is_cached() {
+ if (buffer.empty())
+ return false;
+ if (hash_order()) {
+ return buffer_frag.contains(offset_high());
+ } else {
+ return buffer_frag == frag_t(offset_high());
+ }
+ }
+
+ void reset() {
+ last_name.clear();
+ next_offset = 2;
+ offset = 0;
+ ordered_count = 0;
+ cache_index = 0;
+ buffer.clear();
+ }
+};
+
+class Client : public Dispatcher, public md_config_obs_t {
+ public:
+ using Dispatcher::cct;
+
+ std::unique_ptr<PerfCounters> logger;
+
+ class CommandHook : public AdminSocketHook {
+ Client *m_client;
+ public:
+ explicit CommandHook(Client *client);
+ bool call(std::string command, cmdmap_t &cmdmap, std::string format,
+ bufferlist& out) override;
+ };
+ CommandHook m_command_hook;
+
+ // cluster descriptors
+ std::unique_ptr<MDSMap> mdsmap;
+
+ SafeTimer timer;
+
+ void *callback_handle;
+ client_switch_interrupt_callback_t switch_interrupt_cb;
+ client_remount_callback_t remount_cb;
+ client_ino_callback_t ino_invalidate_cb;
+ client_dentry_callback_t dentry_invalidate_cb;
+ client_getgroups_callback_t getgroups_cb;
+ client_umask_callback_t umask_cb;
+ bool can_invalidate_dentries;
+ bool require_remount;
+
+ Finisher async_ino_invalidator;
+ Finisher async_dentry_invalidator;
+ Finisher interrupt_finisher;
+ Finisher remount_finisher;
+ Finisher objecter_finisher;
+
+ Context *tick_event;
+ utime_t last_cap_renew;
+ void renew_caps();
+ void renew_caps(MetaSession *session);
+ void flush_cap_releases();
+public:
+ void tick();
+
+ UserPerm pick_my_perms() {
+ uid_t uid = user_id >= 0 ? user_id : -1;
+ gid_t gid = group_id >= 0 ? group_id : -1;
+ return UserPerm(uid, gid);
+ }
+
+ static UserPerm pick_my_perms(CephContext *c) {
+ uid_t uid = c->_conf->client_mount_uid >= 0 ? c->_conf->client_mount_uid : -1;
+ gid_t gid = c->_conf->client_mount_gid >= 0 ? c->_conf->client_mount_gid : -1;
+ return UserPerm(uid, gid);
+ }
+protected:
+ Messenger *messenger;
+ MonClient *monclient;
+ Objecter *objecter;
+
+ client_t whoami;
+
+ int user_id, group_id;
+ int acl_type;
+
+ void set_cap_epoch_barrier(epoch_t e);
+ epoch_t cap_epoch_barrier;
+
+ // mds sessions
+ map<mds_rank_t, MetaSession*> mds_sessions; // mds -> push seq
+ list<Cond*> waiting_for_mdsmap;
+
+ // FSMap, for when using mds_command
+ list<Cond*> waiting_for_fsmap;
+ std::unique_ptr<FSMap> fsmap;
+ std::unique_ptr<FSMapUser> fsmap_user;
+
+ // MDS command state
+ CommandTable<MDSCommandOp> command_table;
+ void handle_command_reply(MCommandReply *m);
+ int fetch_fsmap(bool user);
+ int resolve_mds(
+ const std::string &mds_spec,
+ std::vector<mds_gid_t> *targets);
+
+ void get_session_metadata(std::map<std::string, std::string> *meta) const;
+ bool have_open_session(mds_rank_t mds);
+ void got_mds_push(MetaSession *s);
+ MetaSession *_get_mds_session(mds_rank_t mds, Connection *con); ///< return session for mds *and* con; null otherwise
+ MetaSession *_get_or_open_mds_session(mds_rank_t mds);
+ MetaSession *_open_mds_session(mds_rank_t mds);
+ void _close_mds_session(MetaSession *s);
+ void _closed_mds_session(MetaSession *s);
+ bool _any_stale_sessions() const;
+ void _kick_stale_sessions();
+ void handle_client_session(MClientSession *m);
+ void send_reconnect(MetaSession *s);
+ void resend_unsafe_requests(MetaSession *s);
+ void wait_unsafe_requests();
+
+ // mds requests
+ ceph_tid_t last_tid;
+ ceph_tid_t oldest_tid; // oldest incomplete mds request, excluding setfilelock requests
+ map<ceph_tid_t, MetaRequest*> mds_requests;
+
+ // cap flushing
+ ceph_tid_t last_flush_tid;
+
+ void dump_mds_requests(Formatter *f);
+ void dump_mds_sessions(Formatter *f);
+
+ int make_request(MetaRequest *req, const UserPerm& perms,
+ InodeRef *ptarget = 0, bool *pcreated = 0,
+ mds_rank_t use_mds=-1, bufferlist *pdirbl=0);
+ void put_request(MetaRequest *request);
+ void unregister_request(MetaRequest *request);
+
+ int verify_reply_trace(int r, MetaRequest *request, MClientReply *reply,
+ InodeRef *ptarget, bool *pcreated,
+ const UserPerm& perms);
+ void encode_cap_releases(MetaRequest *request, mds_rank_t mds);
+ int encode_inode_release(Inode *in, MetaRequest *req,
+ mds_rank_t mds, int drop,
+ int unless,int force=0);
+ void encode_dentry_release(Dentry *dn, MetaRequest *req,
+ mds_rank_t mds, int drop, int unless);
+ mds_rank_t choose_target_mds(MetaRequest *req, Inode** phash_diri=NULL);
+ void connect_mds_targets(mds_rank_t mds);
+ void send_request(MetaRequest *request, MetaSession *session,
+ bool drop_cap_releases=false);
+ MClientRequest *build_client_request(MetaRequest *request);
+ void kick_requests(MetaSession *session);
+ void kick_requests_closed(MetaSession *session);
+ void handle_client_request_forward(MClientRequestForward *reply);
+ void handle_client_reply(MClientReply *reply);
+ bool is_dir_operation(MetaRequest *request);
+
+ bool initialized;
+ bool mounted;
+ bool unmounting;
+ bool blacklisted;
+
+ // When an MDS has sent us a REJECT, remember that and don't
+ // contact it again. Remember which inst rejected us, so that
+ // when we talk to another inst with the same rank we can
+ // try again.
+ std::map<mds_rank_t, entity_inst_t> rejected_by_mds;
+
+ int local_osd;
+ epoch_t local_osd_epoch;
+
+ int unsafe_sync_write;
+
+public:
+ entity_name_t get_myname() { return messenger->get_myname(); }
+ void _sync_write_commit(Inode *in);
+
+protected:
+ std::unique_ptr<Filer> filer;
+ std::unique_ptr<ObjectCacher> objectcacher;
+ std::unique_ptr<WritebackHandler> writeback_handler;
+
+ // cache
+ ceph::unordered_map<vinodeno_t, Inode*> inode_map;
+
+ // fake inode number for 32-bits ino_t
+ ceph::unordered_map<ino_t, vinodeno_t> faked_ino_map;
+ interval_set<ino_t> free_faked_inos;
+ ino_t last_used_faked_ino;
+ void _assign_faked_ino(Inode *in);
+ void _release_faked_ino(Inode *in);
+ bool _use_faked_inos;
+ void _reset_faked_inos();
+ vinodeno_t _map_faked_ino(ino_t ino);
+
+ Inode* root;
+ map<Inode*, InodeRef> root_parents;
+ Inode* root_ancestor;
+ LRU lru; // lru list of Dentry's in our local metadata cache.
+
+ // all inodes with caps sit on either cap_list or delayed_caps.
+ xlist<Inode*> delayed_caps, cap_list;
+ int num_flushing_caps;
+ ceph::unordered_map<inodeno_t,SnapRealm*> snap_realms;
+
+ // Optional extra metadata about me to send to the MDS
+ std::map<std::string, std::string> metadata;
+ void populate_metadata(const std::string &mount_root);
+
+
+ /* async block write barrier support */
+ //map<uint64_t, BarrierContext* > barriers;
+
+ SnapRealm *get_snap_realm(inodeno_t r);
+ SnapRealm *get_snap_realm_maybe(inodeno_t r);
+ void put_snap_realm(SnapRealm *realm);
+ bool adjust_realm_parent(SnapRealm *realm, inodeno_t parent);
+ void update_snap_trace(bufferlist& bl, SnapRealm **realm_ret, bool must_flush=true);
+ void invalidate_snaprealm_and_children(SnapRealm *realm);
+
+ Inode *open_snapdir(Inode *diri);
+
+
+ // file handles, etc.
+ interval_set<int> free_fd_set; // unused fds
+ ceph::unordered_map<int, Fh*> fd_map;
+ set<Fh*> ll_unclosed_fh_set;
+ ceph::unordered_set<dir_result_t*> opened_dirs;
+
+ int get_fd() {
+ int fd = free_fd_set.range_start();
+ free_fd_set.erase(fd, 1);
+ return fd;
+ }
+ void put_fd(int fd) {
+ free_fd_set.insert(fd, 1);
+ }
+
+ /*
+ * Resolve file descriptor, or return NULL.
+ */
+ Fh *get_filehandle(int fd) {
+ ceph::unordered_map<int, Fh*>::iterator p = fd_map.find(fd);
+ if (p == fd_map.end())
+ return NULL;
+ return p->second;
+ }
+
+ // global client lock
+ // - protects Client and buffer cache both!
+ Mutex client_lock;
+
+ // helpers
+ void wake_inode_waiters(MetaSession *s);
+ void wait_on_list(list<Cond*>& ls);
+ void signal_cond_list(list<Cond*>& ls);
+
+ void wait_on_context_list(list<Context*>& ls);
+ void signal_context_list(list<Context*>& ls);
+
+ // -- metadata cache stuff
+
+ // decrease inode ref. delete if dangling.
+ void put_inode(Inode *in, int n=1);
+ void close_dir(Dir *dir);
+
+ friend class C_Client_FlushComplete; // calls put_inode()
+ friend class C_Client_CacheInvalidate; // calls ino_invalidate_cb
+ friend class C_Client_DentryInvalidate; // calls dentry_invalidate_cb
+ friend class C_Block_Sync; // Calls block map and protected helpers
+ friend class C_Client_RequestInterrupt;
+ friend class C_Client_Remount;
+ friend void intrusive_ptr_release(Inode *in);
+
+ //int get_cache_size() { return lru.lru_get_size(); }
+
+ /**
+ * Don't call this with in==NULL, use get_or_create for that
+ * leave dn set to default NULL unless you're trying to add
+ * a new inode to a pre-created Dentry
+ */
+ Dentry* link(Dir *dir, const string& name, Inode *in, Dentry *dn);
+ void unlink(Dentry *dn, bool keepdir, bool keepdentry);
+
+ // path traversal for high-level interface
+ InodeRef cwd;
+ int path_walk(const filepath& fp, InodeRef *end, const UserPerm& perms,
+ bool followsym=true, int mask=0);
+
+ int fill_stat(Inode *in, struct stat *st, frag_info_t *dirstat=0, nest_info_t *rstat=0);
+ int fill_stat(InodeRef& in, struct stat *st, frag_info_t *dirstat=0, nest_info_t *rstat=0) {
+ return fill_stat(in.get(), st, dirstat, rstat);
+ }
+
+ void fill_statx(Inode *in, unsigned int mask, struct ceph_statx *stx);
+ void fill_statx(InodeRef& in, unsigned int mask, struct ceph_statx *stx) {
+ return fill_statx(in.get(), mask, stx);
+ }
+
+ void touch_dn(Dentry *dn);
+
+ // trim cache.
+ void trim_cache(bool trim_kernel_dcache=false);
+ void trim_cache_for_reconnect(MetaSession *s);
+ void trim_dentry(Dentry *dn);
+ void trim_caps(MetaSession *s, int max);
+ void _invalidate_kernel_dcache();
+
+ void dump_inode(Formatter *f, Inode *in, set<Inode*>& did, bool disconnected);
+ void dump_cache(Formatter *f); // debug
+
+ // force read-only
+ void force_session_readonly(MetaSession *s);
+
+ void dump_status(Formatter *f); // debug
+
+ // trace generation
+ ofstream traceout;
+
+
+ Cond mount_cond, sync_cond;
+
+
+ // friends
+ friend class SyntheticClient;
+ bool ms_dispatch(Message *m) override;
+
+ void ms_handle_connect(Connection *con) override;
+ bool ms_handle_reset(Connection *con) override;
+ void ms_handle_remote_reset(Connection *con) override;
+ bool ms_handle_refused(Connection *con) override;
+ bool ms_get_authorizer(int dest_type, AuthAuthorizer **authorizer, bool force_new) override;
+
+ int authenticate();
+
+ Inode* get_quota_root(Inode *in, const UserPerm& perms);
+ bool check_quota_condition(Inode *in, const UserPerm& perms,
+ std::function<bool (const Inode &)> test);
+ bool is_quota_files_exceeded(Inode *in, const UserPerm& perms);
+ bool is_quota_bytes_exceeded(Inode *in, int64_t new_bytes,
+ const UserPerm& perms);
+ bool is_quota_bytes_approaching(Inode *in, const UserPerm& perms);
+
+ std::map<std::pair<int64_t,std::string>, int> pool_perms;
+ list<Cond*> waiting_for_pool_perm;
+ int check_pool_perm(Inode *in, int need);
+
+ /**
+ * Call this when an OSDMap is seen with a full flag (global or per pool)
+ * set.
+ *
+ * @param pool the pool ID affected, or -1 if all.
+ */
+ void _handle_full_flag(int64_t pool);
+
+ void _close_sessions();
+
+ /**
+ * The basic housekeeping parts of init (perf counters, admin socket)
+ * that is independent of how objecters/monclient/messengers are
+ * being set up.
+ */
+ void _finish_init();
+
+ public:
+ void set_filer_flags(int flags);
+ void clear_filer_flags(int flags);
+
+ Client(Messenger *m, MonClient *mc, Objecter *objecter_);
+ ~Client() override;
+ void tear_down_cache();
+
+ void update_metadata(std::string const &k, std::string const &v);
+
+ client_t get_nodeid() { return whoami; }
+
+ inodeno_t get_root_ino();
+ Inode *get_root();
+
+ virtual int init();
+ virtual void shutdown();
+
+ // messaging
+ void handle_mds_map(class MMDSMap *m);
+ void handle_fs_map(class MFSMap *m);
+ void handle_fs_map_user(class MFSMapUser *m);
+ void handle_osd_map(class MOSDMap *m);
+
+ void handle_lease(MClientLease *m);
+
+ // inline data
+ int uninline_data(Inode *in, Context *onfinish);
+
+ // file caps
+ void check_cap_issue(Inode *in, Cap *cap, unsigned issued);
+ void add_update_cap(Inode *in, MetaSession *session, uint64_t cap_id,
+ unsigned issued, unsigned seq, unsigned mseq, inodeno_t realm,
+ int flags, const UserPerm& perms);
+ void remove_cap(Cap *cap, bool queue_release);
+ void remove_all_caps(Inode *in);
+ void remove_session_caps(MetaSession *session);
+ void mark_caps_dirty(Inode *in, int caps);
+ int mark_caps_flushing(Inode *in, ceph_tid_t *ptid);
+ void adjust_session_flushing_caps(Inode *in, MetaSession *old_s, MetaSession *new_s);
+ void flush_caps_sync();
+ void flush_caps(Inode *in, MetaSession *session, bool sync=false);
+ void kick_flushing_caps(MetaSession *session);
+ void early_kick_flushing_caps(MetaSession *session);
+ void kick_maxsize_requests(MetaSession *session);
+ int get_caps(Inode *in, int need, int want, int *have, loff_t endoff);
+ int get_caps_used(Inode *in);
+
+ void maybe_update_snaprealm(SnapRealm *realm, snapid_t snap_created, snapid_t snap_highwater,
+ vector<snapid_t>& snaps);
+
+ void handle_quota(struct MClientQuota *m);
+ void handle_snap(struct MClientSnap *m);
+ void handle_caps(class MClientCaps *m);
+ void handle_cap_import(MetaSession *session, Inode *in, class MClientCaps *m);
+ void handle_cap_export(MetaSession *session, Inode *in, class MClientCaps *m);
+ void handle_cap_trunc(MetaSession *session, Inode *in, class MClientCaps *m);
+ void handle_cap_flush_ack(MetaSession *session, Inode *in, Cap *cap, class MClientCaps *m);
+ void handle_cap_flushsnap_ack(MetaSession *session, Inode *in, class MClientCaps *m);
+ void handle_cap_grant(MetaSession *session, Inode *in, Cap *cap, class MClientCaps *m);
+ void cap_delay_requeue(Inode *in);
+ void send_cap(Inode *in, MetaSession *session, Cap *cap, bool sync,
+ int used, int want, int retain, int flush,
+ ceph_tid_t flush_tid);
+
+ /* Flags for check_caps() */
+#define CHECK_CAPS_NODELAY (0x1)
+#define CHECK_CAPS_SYNCHRONOUS (0x2)
+
+ void check_caps(Inode *in, unsigned flags);
+ void get_cap_ref(Inode *in, int cap);
+ void put_cap_ref(Inode *in, int cap);
+ void flush_snaps(Inode *in, bool all_again=false);
+ void wait_sync_caps(Inode *in, ceph_tid_t want);
+ void wait_sync_caps(ceph_tid_t want);
+ void queue_cap_snap(Inode *in, SnapContext &old_snapc);
+ void finish_cap_snap(Inode *in, CapSnap &capsnap, int used);
+ void _flushed_cap_snap(Inode *in, snapid_t seq);
+
+ void _schedule_invalidate_dentry_callback(Dentry *dn, bool del);
+ void _async_dentry_invalidate(vinodeno_t dirino, vinodeno_t ino, string& name);
+ void _try_to_trim_inode(Inode *in, bool sched_inval);
+
+ void _schedule_invalidate_callback(Inode *in, int64_t off, int64_t len);
+ void _invalidate_inode_cache(Inode *in);
+ void _invalidate_inode_cache(Inode *in, int64_t off, int64_t len);
+ void _async_invalidate(vinodeno_t ino, int64_t off, int64_t len);
+ bool _release(Inode *in);
+
+ /**
+ * Initiate a flush of the data associated with the given inode.
+ * If you specify a Context, you are responsible for holding an inode
+ * reference for the duration of the flush. If not, _flush() will
+ * take the reference for you.
+ * @param in The Inode whose data you wish to flush.
+ * @param c The Context you wish us to complete once the data is
+ * flushed. If already flushed, this will be called in-line.
+ *
+ * @returns true if the data was already flushed, false otherwise.
+ */
+ bool _flush(Inode *in, Context *c);
+ void _flush_range(Inode *in, int64_t off, uint64_t size);
+ void _flushed(Inode *in);
+ void flush_set_callback(ObjectCacher::ObjectSet *oset);
+
+ void close_release(Inode *in);
+ void close_safe(Inode *in);
+
+ void lock_fh_pos(Fh *f);
+ void unlock_fh_pos(Fh *f);
+
+ // metadata cache
+ void update_dir_dist(Inode *in, DirStat *st);
+
+ void clear_dir_complete_and_ordered(Inode *diri, bool complete);
+ void insert_readdir_results(MetaRequest *request, MetaSession *session, Inode *diri);
+ Inode* insert_trace(MetaRequest *request, MetaSession *session);
+ void update_inode_file_bits(Inode *in, uint64_t truncate_seq, uint64_t truncate_size, uint64_t size,
+ uint64_t change_attr, uint64_t time_warp_seq, utime_t ctime,
+ utime_t mtime, utime_t atime, version_t inline_version,
+ bufferlist& inline_data, int issued);
+ Inode *add_update_inode(InodeStat *st, utime_t ttl, MetaSession *session,
+ const UserPerm& request_perms);
+ Dentry *insert_dentry_inode(Dir *dir, const string& dname, LeaseStat *dlease,
+ Inode *in, utime_t from, MetaSession *session,
+ Dentry *old_dentry = NULL);
+ void update_dentry_lease(Dentry *dn, LeaseStat *dlease, utime_t from, MetaSession *session);
+
+ bool use_faked_inos() { return _use_faked_inos; }
+ vinodeno_t map_faked_ino(ino_t ino);
+
+ //notify the mds to flush the mdlog
+ void flush_mdlog_sync();
+ void flush_mdlog(MetaSession *session);
+
+ // ----------------------
+ // fs ops.
+private:
+
+ void fill_dirent(struct dirent *de, const char *name, int type, uint64_t ino, loff_t next_off);
+
+ // some readdir helpers
+ typedef int (*add_dirent_cb_t)(void *p, struct dirent *de, struct ceph_statx *stx, off_t off, Inode *in);
+
+ int _opendir(Inode *in, dir_result_t **dirpp, const UserPerm& perms);
+ void _readdir_drop_dirp_buffer(dir_result_t *dirp);
+ bool _readdir_have_frag(dir_result_t *dirp);
+ void _readdir_next_frag(dir_result_t *dirp);
+ void _readdir_rechoose_frag(dir_result_t *dirp);
+ int _readdir_get_frag(dir_result_t *dirp);
+ int _readdir_cache_cb(dir_result_t *dirp, add_dirent_cb_t cb, void *p, int caps, bool getref);
+ void _closedir(dir_result_t *dirp);
+
+ // other helpers
+ void _fragmap_remove_non_leaves(Inode *in);
+ void _fragmap_remove_stopped_mds(Inode *in, mds_rank_t mds);
+
+ void _ll_get(Inode *in);
+ int _ll_put(Inode *in, int num);
+ void _ll_drop_pins();
+
+ Fh *_create_fh(Inode *in, int flags, int cmode, const UserPerm& perms);
+ int _release_fh(Fh *fh);
+ void _put_fh(Fh *fh);
+
+
+ struct C_Readahead : public Context {
+ Client *client;
+ Fh *f;
+ C_Readahead(Client *c, Fh *f);
+ ~C_Readahead() override;
+ void finish(int r) override;
+ };
+
+ int _read_sync(Fh *f, uint64_t off, uint64_t len, bufferlist *bl, bool *checkeof);
+ int _read_async(Fh *f, uint64_t off, uint64_t len, bufferlist *bl);
+
+ // internal interface
+ // call these with client_lock held!
+ int _do_lookup(Inode *dir, const string& name, int mask, InodeRef *target,
+ const UserPerm& perms);
+
+ int _lookup(Inode *dir, const string& dname, int mask, InodeRef *target,
+ const UserPerm& perm);
+
+ int _link(Inode *in, Inode *dir, const char *name, const UserPerm& perm,
+ InodeRef *inp = 0);
+ int _unlink(Inode *dir, const char *name, const UserPerm& perm);
+ int _rename(Inode *olddir, const char *oname, Inode *ndir, const char *nname, const UserPerm& perm);
+ int _mkdir(Inode *dir, const char *name, mode_t mode, const UserPerm& perm,
+ InodeRef *inp = 0);
+ int _rmdir(Inode *dir, const char *name, const UserPerm& perms);
+ int _symlink(Inode *dir, const char *name, const char *target,
+ const UserPerm& perms, InodeRef *inp = 0);
+ int _mknod(Inode *dir, const char *name, mode_t mode, dev_t rdev,
+ const UserPerm& perms, InodeRef *inp = 0);
+ int _do_setattr(Inode *in, struct ceph_statx *stx, int mask,
+ const UserPerm& perms, InodeRef *inp);
+ void stat_to_statx(struct stat *st, struct ceph_statx *stx);
+ int __setattrx(Inode *in, struct ceph_statx *stx, int mask,
+ const UserPerm& perms, InodeRef *inp = 0);
+ int _setattrx(InodeRef &in, struct ceph_statx *stx, int mask,
+ const UserPerm& perms);
+ int _setattr(InodeRef &in, struct stat *attr, int mask,
+ const UserPerm& perms);
+ int _ll_setattrx(Inode *in, struct ceph_statx *stx, int mask,
+ const UserPerm& perms, InodeRef *inp = 0);
+ int _getattr(Inode *in, int mask, const UserPerm& perms, bool force=false);
+ int _getattr(InodeRef &in, int mask, const UserPerm& perms, bool force=false) {
+ return _getattr(in.get(), mask, perms, force);
+ }
+ int _readlink(Inode *in, char *buf, size_t size);
+ int _getxattr(Inode *in, const char *name, void *value, size_t len,
+ const UserPerm& perms);
+ int _getxattr(InodeRef &in, const char *name, void *value, size_t len,
+ const UserPerm& perms);
+ int _listxattr(Inode *in, char *names, size_t len, const UserPerm& perms);
+ int _do_setxattr(Inode *in, const char *name, const void *value, size_t len,
+ int flags, const UserPerm& perms);
+ int _setxattr(Inode *in, const char *name, const void *value, size_t len,
+ int flags, const UserPerm& perms);
+ int _setxattr(InodeRef &in, const char *name, const void *value, size_t len,
+ int flags, const UserPerm& perms);
+ int _setxattr_check_data_pool(string& name, string& value, const OSDMap *osdmap);
+ void _setxattr_maybe_wait_for_osdmap(const char *name, const void *value, size_t len);
+ int _removexattr(Inode *in, const char *nm, const UserPerm& perms);
+ int _removexattr(InodeRef &in, const char *nm, const UserPerm& perms);
+ int _open(Inode *in, int flags, mode_t mode, Fh **fhp,
+ const UserPerm& perms);
+ int _renew_caps(Inode *in);
+ int _create(Inode *in, const char *name, int flags, mode_t mode, InodeRef *inp,
+ Fh **fhp, int stripe_unit, int stripe_count, int object_size,
+ const char *data_pool, bool *created, const UserPerm &perms);
+
+ loff_t _lseek(Fh *fh, loff_t offset, int whence);
+ int _read(Fh *fh, int64_t offset, uint64_t size, bufferlist *bl);
+ int _write(Fh *fh, int64_t offset, uint64_t size, const char *buf,
+ const struct iovec *iov, int iovcnt);
+ int _preadv_pwritev(int fd, const struct iovec *iov, unsigned iovcnt, int64_t offset, bool write);
+ int _flush(Fh *fh);
+ int _fsync(Fh *fh, bool syncdataonly);
+ int _fsync(Inode *in, bool syncdataonly);
+ int _sync_fs();
+ int _fallocate(Fh *fh, int mode, int64_t offset, int64_t length);
+ int _getlk(Fh *fh, struct flock *fl, uint64_t owner);
+ int _setlk(Fh *fh, struct flock *fl, uint64_t owner, int sleep);
+ int _flock(Fh *fh, int cmd, uint64_t owner);
+
+ int get_or_create(Inode *dir, const char* name,
+ Dentry **pdn, bool expect_null=false);
+
+ enum {
+ NO_ACL = 0,
+ POSIX_ACL,
+ };
+
+ enum {
+ MAY_EXEC = 1,
+ MAY_WRITE = 2,
+ MAY_READ = 4,
+ };
+
+ void init_groups(UserPerm *groups);
+
+ int inode_permission(Inode *in, const UserPerm& perms, unsigned want);
+ int xattr_permission(Inode *in, const char *name, unsigned want,
+ const UserPerm& perms);
+ int may_setattr(Inode *in, struct ceph_statx *stx, int mask,
+ const UserPerm& perms);
+ int may_open(Inode *in, int flags, const UserPerm& perms);
+ int may_lookup(Inode *dir, const UserPerm& perms);
+ int may_create(Inode *dir, const UserPerm& perms);
+ int may_delete(Inode *dir, const char *name, const UserPerm& perms);
+ int may_hardlink(Inode *in, const UserPerm& perms);
+
+ int _getattr_for_perm(Inode *in, const UserPerm& perms);
+ int _getgrouplist(gid_t **sgids, uid_t uid, gid_t gid);
+
+ vinodeno_t _get_vino(Inode *in);
+ inodeno_t _get_inodeno(Inode *in);
+
+ /*
+ * These define virtual xattrs exposing the recursive directory
+ * statistics and layout metadata.
+ */
+ struct VXattr {
+ const string name;
+ size_t (Client::*getxattr_cb)(Inode *in, char *val, size_t size);
+ bool readonly, hidden;
+ bool (Client::*exists_cb)(Inode *in);
+ };
+
+ bool _vxattrcb_quota_exists(Inode *in);
+ size_t _vxattrcb_quota(Inode *in, char *val, size_t size);
+ size_t _vxattrcb_quota_max_bytes(Inode *in, char *val, size_t size);
+ size_t _vxattrcb_quota_max_files(Inode *in, char *val, size_t size);
+
+ bool _vxattrcb_layout_exists(Inode *in);
+ size_t _vxattrcb_layout(Inode *in, char *val, size_t size);
+ size_t _vxattrcb_layout_stripe_unit(Inode *in, char *val, size_t size);
+ size_t _vxattrcb_layout_stripe_count(Inode *in, char *val, size_t size);
+ size_t _vxattrcb_layout_object_size(Inode *in, char *val, size_t size);
+ size_t _vxattrcb_layout_pool(Inode *in, char *val, size_t size);
+ size_t _vxattrcb_layout_pool_namespace(Inode *in, char *val, size_t size);
+ size_t _vxattrcb_dir_entries(Inode *in, char *val, size_t size);
+ size_t _vxattrcb_dir_files(Inode *in, char *val, size_t size);
+ size_t _vxattrcb_dir_subdirs(Inode *in, char *val, size_t size);
+ size_t _vxattrcb_dir_rentries(Inode *in, char *val, size_t size);
+ size_t _vxattrcb_dir_rfiles(Inode *in, char *val, size_t size);
+ size_t _vxattrcb_dir_rsubdirs(Inode *in, char *val, size_t size);
+ size_t _vxattrcb_dir_rbytes(Inode *in, char *val, size_t size);
+ size_t _vxattrcb_dir_rctime(Inode *in, char *val, size_t size);
+ size_t _vxattrs_calcu_name_size(const VXattr *vxattrs);
+
+ static const VXattr _dir_vxattrs[];
+ static const VXattr _file_vxattrs[];
+
+ static const VXattr *_get_vxattrs(Inode *in);
+ static const VXattr *_match_vxattr(Inode *in, const char *name);
+
+ size_t _file_vxattrs_name_size;
+ size_t _dir_vxattrs_name_size;
+ size_t _vxattrs_name_size(const VXattr *vxattrs) {
+ if (vxattrs == _dir_vxattrs)
+ return _dir_vxattrs_name_size;
+ else if (vxattrs == _file_vxattrs)
+ return _file_vxattrs_name_size;
+ return 0;
+ }
+
+ int _do_filelock(Inode *in, Fh *fh, int lock_type, int op, int sleep,
+ struct flock *fl, uint64_t owner, bool removing=false);
+ int _interrupt_filelock(MetaRequest *req);
+ void _encode_filelocks(Inode *in, bufferlist& bl);
+ void _release_filelocks(Fh *fh);
+ void _update_lock_state(struct flock *fl, uint64_t owner, ceph_lock_state_t *lock_state);
+
+ int _posix_acl_create(Inode *dir, mode_t *mode, bufferlist& xattrs_bl,
+ const UserPerm& perms);
+ int _posix_acl_chmod(Inode *in, mode_t mode, const UserPerm& perms);
+ int _posix_acl_permission(Inode *in, const UserPerm& perms, unsigned want);
+
+ mds_rank_t _get_random_up_mds() const;
+
+ int _ll_getattr(Inode *in, int caps, const UserPerm& perms);
+
+public:
+ int mount(const std::string &mount_root, const UserPerm& perms,
+ bool require_mds=false);
+ void unmount();
+
+ int mds_command(
+ const std::string &mds_spec,
+ const std::vector<std::string>& cmd,
+ const bufferlist& inbl,
+ bufferlist *poutbl, std::string *prs, Context *onfinish);
+
+ // these shoud (more or less) mirror the actual system calls.
+ int statfs(const char *path, struct statvfs *stbuf, const UserPerm& perms);
+
+ // crap
+ int chdir(const char *s, std::string &new_cwd, const UserPerm& perms);
+ void _getcwd(std::string& cwd, const UserPerm& perms);
+ void getcwd(std::string& cwd, const UserPerm& perms);
+
+ // namespace ops
+ int opendir(const char *name, dir_result_t **dirpp, const UserPerm& perms);
+ int closedir(dir_result_t *dirp);
+
+ /**
+ * Fill a directory listing from dirp, invoking cb for each entry
+ * with the given pointer, the dirent, the struct stat, the stmask,
+ * and the offset.
+ *
+ * Returns 0 if it reached the end of the directory.
+ * If @a cb returns a negative error code, stop and return that.
+ */
+ int readdir_r_cb(dir_result_t *dirp, add_dirent_cb_t cb, void *p,
+ unsigned want=0, unsigned flags=AT_NO_ATTR_SYNC,
+ bool getref=false);
+
+ struct dirent * readdir(dir_result_t *d);
+ int readdir_r(dir_result_t *dirp, struct dirent *de);
+ int readdirplus_r(dir_result_t *dirp, struct dirent *de, struct ceph_statx *stx, unsigned want, unsigned flags, Inode **out);
+
+ int getdir(const char *relpath, list<string>& names,
+ const UserPerm& perms); // get the whole dir at once.
+
+ /**
+ * Returns the length of the buffer that got filled in, or -errno.
+ * If it returns -ERANGE you just need to increase the size of the
+ * buffer and try again.
+ */
+ int _getdents(dir_result_t *dirp, char *buf, int buflen, bool ful); // get a bunch of dentries at once
+ int getdents(dir_result_t *dirp, char *buf, int buflen) {
+ return _getdents(dirp, buf, buflen, true);
+ }
+ int getdnames(dir_result_t *dirp, char *buf, int buflen) {
+ return _getdents(dirp, buf, buflen, false);
+ }
+
+ void rewinddir(dir_result_t *dirp);
+ loff_t telldir(dir_result_t *dirp);
+ void seekdir(dir_result_t *dirp, loff_t offset);
+
+ int link(const char *existing, const char *newname, const UserPerm& perm);
+ int unlink(const char *path, const UserPerm& perm);
+ int rename(const char *from, const char *to, const UserPerm& perm);
+
+ // dirs
+ int mkdir(const char *path, mode_t mode, const UserPerm& perm);
+ int mkdirs(const char *path, mode_t mode, const UserPerm& perms);
+ int rmdir(const char *path, const UserPerm& perms);
+
+ // symlinks
+ int readlink(const char *path, char *buf, loff_t size, const UserPerm& perms);
+
+ int symlink(const char *existing, const char *newname, const UserPerm& perms);
+
+ // inode stuff
+ unsigned statx_to_mask(unsigned int flags, unsigned int want);
+ int stat(const char *path, struct stat *stbuf, const UserPerm& perms,
+ frag_info_t *dirstat=0, int mask=CEPH_STAT_CAP_INODE_ALL);
+ int statx(const char *path, struct ceph_statx *stx,
+ const UserPerm& perms,
+ unsigned int want, unsigned int flags);
+ int lstat(const char *path, struct stat *stbuf, const UserPerm& perms,
+ frag_info_t *dirstat=0, int mask=CEPH_STAT_CAP_INODE_ALL);
+
+ int setattr(const char *relpath, struct stat *attr, int mask,
+ const UserPerm& perms);
+ int setattrx(const char *relpath, struct ceph_statx *stx, int mask,
+ const UserPerm& perms, int flags=0);
+ int fsetattr(int fd, struct stat *attr, int mask, const UserPerm& perms);
+ int fsetattrx(int fd, struct ceph_statx *stx, int mask, const UserPerm& perms);
+ int chmod(const char *path, mode_t mode, const UserPerm& perms);
+ int fchmod(int fd, mode_t mode, const UserPerm& perms);
+ int lchmod(const char *path, mode_t mode, const UserPerm& perms);
+ int chown(const char *path, uid_t new_uid, gid_t new_gid,
+ const UserPerm& perms);
+ int fchown(int fd, uid_t new_uid, gid_t new_gid, const UserPerm& perms);
+ int lchown(const char *path, uid_t new_uid, gid_t new_gid,
+ const UserPerm& perms);
+ int utime(const char *path, struct utimbuf *buf, const UserPerm& perms);
+ int lutime(const char *path, struct utimbuf *buf, const UserPerm& perms);
+ int flock(int fd, int operation, uint64_t owner);
+ int truncate(const char *path, loff_t size, const UserPerm& perms);
+
+ // file ops
+ int mknod(const char *path, mode_t mode, const UserPerm& perms, dev_t rdev=0);
+ int open(const char *path, int flags, const UserPerm& perms, mode_t mode=0);
+ int open(const char *path, int flags, const UserPerm& perms,
+ mode_t mode, int stripe_unit, int stripe_count, int object_size,
+ const char *data_pool);
+ int lookup_hash(inodeno_t ino, inodeno_t dirino, const char *name,
+ const UserPerm& perms);
+ int lookup_ino(inodeno_t ino, const UserPerm& perms, Inode **inode=NULL);
+ int lookup_parent(Inode *in, const UserPerm& perms, Inode **parent=NULL);
+ int lookup_name(Inode *in, Inode *parent, const UserPerm& perms);
+ int close(int fd);
+ loff_t lseek(int fd, loff_t offset, int whence);
+ int read(int fd, char *buf, loff_t size, loff_t offset=-1);
+ int preadv(int fd, const struct iovec *iov, int iovcnt, loff_t offset=-1);
+ int write(int fd, const char *buf, loff_t size, loff_t offset=-1);
+ int pwritev(int fd, const struct iovec *iov, int iovcnt, loff_t offset=-1);
+ int fake_write_size(int fd, loff_t size);
+ int ftruncate(int fd, loff_t size, const UserPerm& perms);
+ int fsync(int fd, bool syncdataonly);
+ int fstat(int fd, struct stat *stbuf, const UserPerm& perms,
+ int mask=CEPH_STAT_CAP_INODE_ALL);
+ int fstatx(int fd, struct ceph_statx *stx, const UserPerm& perms,
+ unsigned int want, unsigned int flags);
+ int fallocate(int fd, int mode, loff_t offset, loff_t length);
+
+ // full path xattr ops
+ int getxattr(const char *path, const char *name, void *value, size_t size,
+ const UserPerm& perms);
+ int lgetxattr(const char *path, const char *name, void *value, size_t size,
+ const UserPerm& perms);
+ int fgetxattr(int fd, const char *name, void *value, size_t size,
+ const UserPerm& perms);
+ int listxattr(const char *path, char *list, size_t size, const UserPerm& perms);
+ int llistxattr(const char *path, char *list, size_t size, const UserPerm& perms);
+ int flistxattr(int fd, char *list, size_t size, const UserPerm& perms);
+ int removexattr(const char *path, const char *name, const UserPerm& perms);
+ int lremovexattr(const char *path, const char *name, const UserPerm& perms);
+ int fremovexattr(int fd, const char *name, const UserPerm& perms);
+ int setxattr(const char *path, const char *name, const void *value,
+ size_t size, int flags, const UserPerm& perms);
+ int lsetxattr(const char *path, const char *name, const void *value,
+ size_t size, int flags, const UserPerm& perms);
+ int fsetxattr(int fd, const char *name, const void *value, size_t size,
+ int flags, const UserPerm& perms);
+
+ int sync_fs();
+ int64_t drop_caches();
+
+ // hpc lazyio
+ int lazyio_propogate(int fd, loff_t offset, size_t count);
+ int lazyio_synchronize(int fd, loff_t offset, size_t count);
+
+ // expose file layout
+ int describe_layout(const char *path, file_layout_t* layout,
+ const UserPerm& perms);
+ int fdescribe_layout(int fd, file_layout_t* layout);
+ int get_file_stripe_address(int fd, loff_t offset, vector<entity_addr_t>& address);
+ int get_file_extent_osds(int fd, loff_t off, loff_t *len, vector<int>& osds);
+ int get_osd_addr(int osd, entity_addr_t& addr);
+
+ // expose mdsmap
+ int64_t get_default_pool_id();
+
+ // expose osdmap
+ int get_local_osd();
+ int get_pool_replication(int64_t pool);
+ int64_t get_pool_id(const char *pool_name);
+ string get_pool_name(int64_t pool);
+ int get_osd_crush_location(int id, vector<pair<string, string> >& path);
+
+ int enumerate_layout(int fd, vector<ObjectExtent>& result,
+ loff_t length, loff_t offset);
+
+ int mksnap(const char *path, const char *name, const UserPerm& perm);
+ int rmsnap(const char *path, const char *name, const UserPerm& perm);
+
+ // expose caps
+ int get_caps_issued(int fd);
+ int get_caps_issued(const char *path, const UserPerm& perms);
+
+ // low-level interface v2
+ inodeno_t ll_get_inodeno(Inode *in) {
+ Mutex::Locker lock(client_lock);
+ return _get_inodeno(in);
+ }
+ snapid_t ll_get_snapid(Inode *in);
+ vinodeno_t ll_get_vino(Inode *in) {
+ Mutex::Locker lock(client_lock);
+ return _get_vino(in);
+ }
+ // get inode from faked ino
+ Inode *ll_get_inode(ino_t ino);
+ Inode *ll_get_inode(vinodeno_t vino);
+ int ll_lookup(Inode *parent, const char *name, struct stat *attr,
+ Inode **out, const UserPerm& perms);
+ int ll_lookupx(Inode *parent, const char *name, Inode **out,
+ struct ceph_statx *stx, unsigned want, unsigned flags,
+ const UserPerm& perms);
+ bool ll_forget(Inode *in, int count);
+ bool ll_put(Inode *in);
+ int ll_getattr(Inode *in, struct stat *st, const UserPerm& perms);
+ int ll_getattrx(Inode *in, struct ceph_statx *stx, unsigned int want,
+ unsigned int flags, const UserPerm& perms);
+ int ll_setattrx(Inode *in, struct ceph_statx *stx, int mask,
+ const UserPerm& perms);
+ int ll_setattr(Inode *in, struct stat *st, int mask,
+ const UserPerm& perms);
+ int ll_getxattr(Inode *in, const char *name, void *value, size_t size,
+ const UserPerm& perms);
+ int ll_setxattr(Inode *in, const char *name, const void *value, size_t size,
+ int flags, const UserPerm& perms);
+ int ll_removexattr(Inode *in, const char *name, const UserPerm& perms);
+ int ll_listxattr(Inode *in, char *list, size_t size, const UserPerm& perms);
+ int ll_opendir(Inode *in, int flags, dir_result_t **dirpp,
+ const UserPerm& perms);
+ int ll_releasedir(dir_result_t* dirp);
+ int ll_fsyncdir(dir_result_t* dirp);
+ int ll_readlink(Inode *in, char *buf, size_t bufsize, const UserPerm& perms);
+ int ll_mknod(Inode *in, const char *name, mode_t mode, dev_t rdev,
+ struct stat *attr, Inode **out, const UserPerm& perms);
+ int ll_mknodx(Inode *parent, const char *name, mode_t mode, dev_t rdev,
+ Inode **out, struct ceph_statx *stx, unsigned want,
+ unsigned flags, const UserPerm& perms);
+ int ll_mkdir(Inode *in, const char *name, mode_t mode, struct stat *attr,
+ Inode **out, const UserPerm& perm);
+ int ll_mkdirx(Inode *parent, const char *name, mode_t mode, Inode **out,
+ struct ceph_statx *stx, unsigned want, unsigned flags,
+ const UserPerm& perms);
+ int ll_symlink(Inode *in, const char *name, const char *value,
+ struct stat *attr, Inode **out, const UserPerm& perms);
+ int ll_symlinkx(Inode *parent, const char *name, const char *value,
+ Inode **out, struct ceph_statx *stx, unsigned want,
+ unsigned flags, const UserPerm& perms);
+ int ll_unlink(Inode *in, const char *name, const UserPerm& perm);
+ int ll_rmdir(Inode *in, const char *name, const UserPerm& perms);
+ int ll_rename(Inode *parent, const char *name, Inode *newparent,
+ const char *newname, const UserPerm& perm);
+ int ll_link(Inode *in, Inode *newparent, const char *newname,
+ const UserPerm& perm);
+ int ll_open(Inode *in, int flags, Fh **fh, const UserPerm& perms);
+ int _ll_create(Inode *parent, const char *name, mode_t mode,
+ int flags, InodeRef *in, int caps, Fh **fhp,
+ const UserPerm& perms);
+ int ll_create(Inode *parent, const char *name, mode_t mode, int flags,
+ struct stat *attr, Inode **out, Fh **fhp,
+ const UserPerm& perms);
+ int ll_createx(Inode *parent, const char *name, mode_t mode,
+ int oflags, Inode **outp, Fh **fhp,
+ struct ceph_statx *stx, unsigned want, unsigned lflags,
+ const UserPerm& perms);
+ int ll_read_block(Inode *in, uint64_t blockid, char *buf, uint64_t offset,
+ uint64_t length, file_layout_t* layout);
+
+ int ll_write_block(Inode *in, uint64_t blockid,
+ char* buf, uint64_t offset,
+ uint64_t length, file_layout_t* layout,
+ uint64_t snapseq, uint32_t sync);
+ int ll_commit_blocks(Inode *in, uint64_t offset, uint64_t length);
+
+ int ll_statfs(Inode *in, struct statvfs *stbuf, const UserPerm& perms);
+ int ll_walk(const char* name, Inode **i, struct ceph_statx *stx,
+ unsigned int want, unsigned int flags, const UserPerm& perms);
+ uint32_t ll_stripe_unit(Inode *in);
+ int ll_file_layout(Inode *in, file_layout_t *layout);
+ uint64_t ll_snap_seq(Inode *in);
+
+ int ll_read(Fh *fh, loff_t off, loff_t len, bufferlist *bl);
+ int ll_write(Fh *fh, loff_t off, loff_t len, const char *data);
+ loff_t ll_lseek(Fh *fh, loff_t offset, int whence);
+ int ll_flush(Fh *fh);
+ int ll_fsync(Fh *fh, bool syncdataonly);
+ int ll_fallocate(Fh *fh, int mode, loff_t offset, loff_t length);
+ int ll_release(Fh *fh);
+ int ll_getlk(Fh *fh, struct flock *fl, uint64_t owner);
+ int ll_setlk(Fh *fh, struct flock *fl, uint64_t owner, int sleep);
+ int ll_flock(Fh *fh, int cmd, uint64_t owner);
+ int ll_file_layout(Fh *fh, file_layout_t *layout);
+ void ll_interrupt(void *d);
+ bool ll_handle_umask() {
+ return acl_type != NO_ACL;
+ }
+
+ int ll_get_stripe_osd(struct Inode *in, uint64_t blockno,
+ file_layout_t* layout);
+ uint64_t ll_get_internal_offset(struct Inode *in, uint64_t blockno);
+
+ int ll_num_osds(void);
+ int ll_osdaddr(int osd, uint32_t *addr);
+ int ll_osdaddr(int osd, char* buf, size_t size);
+
+ void ll_register_callbacks(struct client_callback_args *args);
+ int test_dentry_handling(bool can_invalidate);
+
+ const char** get_tracked_conf_keys() const override;
+ void handle_conf_change(const struct md_config_t *conf,
+ const std::set <std::string> &changed) override;
+};
+
+/**
+ * Specialization of Client that manages its own Objecter instance
+ * and handles init/shutdown of messenger/monclient
+ */
+class StandaloneClient : public Client
+{
+ public:
+ StandaloneClient(Messenger *m, MonClient *mc);
+
+ ~StandaloneClient() override;
+
+ int init() override;
+ void shutdown() override;
+};
+
+#endif
Code Review / stor4nfv.git / blobdiff