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/*
Copyright (c) 2008-2016 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
*/
#ifndef _GLUSTERFS_H
#define _GLUSTERFS_H
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <netdb.h>
#include <errno.h>
#include <dirent.h>
#include <unistd.h>
#include <fcntl.h>
#include <arpa/inet.h>
#include <sys/poll.h>
#include <pthread.h>
#include <limits.h> /* For PATH_MAX */
#include "glusterfs-fops.h" /* generated XDR values for FOPs */
#include "list.h"
#include "locking.h"
#include "logging.h"
#include "lkowner.h"
#include "compat-uuid.h"
#if (USE_EVENTS)
#include "events.h"
#endif
#define GF_YES 1
#define GF_NO 0
#ifndef O_LARGEFILE
/* savannah bug #20053, patch for compiling on darwin */
#define O_LARGEFILE 0100000 /* from bits/fcntl.h */
#endif
#ifndef O_FMODE_EXEC
/* redhat bug 843080, added from linux/fs.h */
#define O_FMODE_EXEC 040 //0x20
#endif
#ifndef O_DIRECT
/* savannah bug #20050, #20052 */
#define O_DIRECT 0 /* From asm/fcntl.h */
#endif
#ifndef O_DIRECTORY
/* FreeBSD does not need O_DIRECTORY */
#define O_DIRECTORY 0
#endif
#ifndef EBADFD
/* Mac OS X does not have EBADFD */
#define EBADFD EBADF
#endif
#ifndef FNM_EXTMATCH
#define FNM_EXTMATCH 0
#endif
#define GLUSTERD_MAX_SNAP_NAME 255
#define ZR_MOUNTPOINT_OPT "mountpoint"
#define ZR_ATTR_TIMEOUT_OPT "attribute-timeout"
#define ZR_ENTRY_TIMEOUT_OPT "entry-timeout"
#define ZR_NEGATIVE_TIMEOUT_OPT "negative-timeout"
#define ZR_DIRECT_IO_OPT "direct-io-mode"
#define ZR_STRICT_VOLFILE_CHECK "strict-volfile-check"
#define ZR_DUMP_FUSE "dump-fuse"
#define ZR_FUSE_MOUNTOPTS "fuse-mountopts"
#define GF_XATTR_CLRLK_CMD "glusterfs.clrlk"
#define GF_XATTR_PATHINFO_KEY "trusted.glusterfs.pathinfo"
#define GF_XATTR_NODE_UUID_KEY "trusted.glusterfs.node-uuid"
#define GF_REBAL_FIND_LOCAL_SUBVOL "glusterfs.find-local-subvol"
#define GF_XATTR_VOL_ID_KEY "trusted.glusterfs.volume-id"
#define GF_XATTR_LOCKINFO_KEY "trusted.glusterfs.lockinfo"
#define GF_META_LOCK_KEY "glusterfs.lock-migration-meta-lock"
#define GF_META_UNLOCK_KEY "glusterfs.lock-migration-meta-unlock"
#define GF_XATTR_GET_REAL_FILENAME_KEY "glusterfs.get_real_filename:"
#define GF_XATTR_USER_PATHINFO_KEY "glusterfs.pathinfo"
#define GF_INTERNAL_IGNORE_DEEM_STATFS "ignore-deem-statfs"
#define GF_XATTR_IOSTATS_DUMP_KEY "trusted.io-stats-dump"
#define GF_READDIR_SKIP_DIRS "readdir-filter-directories"
#define GF_MDC_LOADED_KEY_NAMES "glusterfs.mdc.loaded.key.names"
#define BD_XATTR_KEY "user.glusterfs"
#define GF_PREOP_PARENT_KEY "glusterfs.preop.parent.key"
#define GF_PREOP_CHECK_FAILED "glusterfs.preop.check.failed"
#define XATTR_IS_PATHINFO(x) ((strncmp (x, GF_XATTR_PATHINFO_KEY, \
strlen (x)) == 0) || \
(strncmp (x, GF_XATTR_USER_PATHINFO_KEY, \
strlen (x)) == 0))
#define XATTR_IS_NODE_UUID(x) (strncmp (x, GF_XATTR_NODE_UUID_KEY, \
strlen (GF_XATTR_NODE_UUID_KEY)) == 0)
#define XATTR_IS_LOCKINFO(x) (strncmp (x, GF_XATTR_LOCKINFO_KEY, \
strlen (GF_XATTR_LOCKINFO_KEY)) == 0)
#define XATTR_IS_BD(x) (strncmp (x, BD_XATTR_KEY, strlen (BD_XATTR_KEY)) == 0)
#define GF_XATTR_LINKINFO_KEY "trusted.distribute.linkinfo"
#define GFID_XATTR_KEY "trusted.gfid"
#define PGFID_XATTR_KEY_PREFIX "trusted.pgfid."
#define VIRTUAL_GFID_XATTR_KEY_STR "glusterfs.gfid.string"
#define VIRTUAL_GFID_XATTR_KEY "glusterfs.gfid"
#define UUID_CANONICAL_FORM_LEN 36
#define GET_ANCESTRY_PATH_KEY "glusterfs.ancestry.path"
#define GET_ANCESTRY_DENTRY_KEY "glusterfs.ancestry.dentry"
#define BITROT_DEFAULT_CURRENT_VERSION (unsigned long)1
#define BITROT_DEFAULT_SIGNING_VERSION (unsigned long)0
/* on-disk object signature keys */
#define BITROT_OBJECT_BAD_KEY "trusted.bit-rot.bad-file"
#define BITROT_CURRENT_VERSION_KEY "trusted.bit-rot.version"
#define BITROT_SIGNING_VERSION_KEY "trusted.bit-rot.signature"
/* globally usable bad file marker */
#define GLUSTERFS_BAD_INODE "glusterfs.bad-inode"
/* on-disk size of signing xattr (not the signature itself) */
#define BITROT_SIGNING_XATTR_SIZE_KEY "trusted.glusterfs.bit-rot.size"
/* GET/SET object signature */
#define GLUSTERFS_GET_OBJECT_SIGNATURE "trusted.glusterfs.get-signature"
#define GLUSTERFS_SET_OBJECT_SIGNATURE "trusted.glusterfs.set-signature"
/* operation needs to be durable on-disk */
#define GLUSTERFS_DURABLE_OP "trusted.glusterfs.durable-op"
/* key for version exchange b/w bitrot stub and changelog */
#define GLUSTERFS_VERSION_XCHG_KEY "glusterfs.version.xchg"
#define GLUSTERFS_INTERNAL_FOP_KEY "glusterfs-internal-fop"
#define DHT_CHANGELOG_RENAME_OP_KEY "changelog.rename-op"
#define ZR_FILE_CONTENT_STR "glusterfs.file."
#define ZR_FILE_CONTENT_STRLEN 15
#define GLUSTERFS_WRITE_IS_APPEND "glusterfs.write-is-append"
#define GLUSTERFS_WRITE_UPDATE_ATOMIC "glusterfs.write-update-atomic"
#define GLUSTERFS_OPEN_FD_COUNT "glusterfs.open-fd-count"
#define GLUSTERFS_INODELK_COUNT "glusterfs.inodelk-count"
#define GLUSTERFS_ENTRYLK_COUNT "glusterfs.entrylk-count"
#define GLUSTERFS_POSIXLK_COUNT "glusterfs.posixlk-count"
#define GLUSTERFS_PARENT_ENTRYLK "glusterfs.parent-entrylk"
#define GLUSTERFS_INODELK_DOM_COUNT "glusterfs.inodelk-dom-count"
#define GFID_TO_PATH_KEY "glusterfs.gfid2path"
#define GF_XATTR_STIME_PATTERN "trusted.glusterfs.*.stime"
#define GF_XATTR_XTIME_PATTERN "trusted.glusterfs.*.xtime"
#define GF_XATTR_TRIGGER_SYNC "glusterfs.geo-rep.trigger-sync"
/* quota xattrs */
#define QUOTA_SIZE_KEY "trusted.glusterfs.quota.size"
#define QUOTA_LIMIT_KEY "trusted.glusterfs.quota.limit-set"
#define QUOTA_LIMIT_OBJECTS_KEY "trusted.glusterfs.quota.limit-objects"
#define VIRTUAL_QUOTA_XATTR_CLEANUP_KEY "glusterfs.quota-xattr-cleanup"
#define QUOTA_READ_ONLY_KEY "trusted.glusterfs.quota.read-only"
/* Index xlator related */
#define GF_XATTROP_INDEX_GFID "glusterfs.xattrop_index_gfid"
#define GF_XATTROP_ENTRY_CHANGES_GFID "glusterfs.xattrop_entry_changes_gfid"
#define GF_XATTROP_INDEX_COUNT "glusterfs.xattrop_index_count"
#define GF_XATTROP_DIRTY_GFID "glusterfs.xattrop_dirty_gfid"
#define GF_XATTROP_DIRTY_COUNT "glusterfs.xattrop_dirty_count"
#define GF_XATTROP_ENTRY_IN_KEY "glusterfs.xattrop-entry-create"
#define GF_XATTROP_ENTRY_OUT_KEY "glusterfs.xattrop-entry-delete"
#define GF_INDEX_IA_TYPE_GET_REQ "glusterfs.index-ia-type-get-req"
#define GF_INDEX_IA_TYPE_GET_RSP "glusterfs.index-ia-type-get-rsp"
#define GF_HEAL_INFO "glusterfs.heal-info"
#define GF_AFR_HEAL_SBRAIN "glusterfs.heal-sbrain"
#define GF_AFR_SBRAIN_STATUS "replica.split-brain-status"
#define GF_AFR_SBRAIN_CHOICE "replica.split-brain-choice"
#define GF_AFR_SPB_CHOICE_TIMEOUT "replica.split-brain-choice-timeout"
#define GF_AFR_SBRAIN_RESOLVE "replica.split-brain-heal-finalize"
#define GF_AFR_ADD_BRICK "trusted.add-brick"
#define GF_AFR_REPLACE_BRICK "trusted.replace-brick"
#define GF_AFR_DIRTY "trusted.afr.dirty"
#define GF_XATTROP_ENTRY_OUT "glusterfs.xattrop-entry-delete"
#define GF_XATTROP_PURGE_INDEX "glusterfs.xattrop-purge-index"
#define GF_GFIDLESS_LOOKUP "gfidless-lookup"
/* replace-brick and pump related internal xattrs */
#define RB_PUMP_CMD_START "glusterfs.pump.start"
#define RB_PUMP_CMD_PAUSE "glusterfs.pump.pause"
#define RB_PUMP_CMD_COMMIT "glusterfs.pump.commit"
#define RB_PUMP_CMD_ABORT "glusterfs.pump.abort"
#define RB_PUMP_CMD_STATUS "glusterfs.pump.status"
#define GLUSTERFS_MARKER_DONT_ACCOUNT_KEY "glusters.marker.dont-account"
#define GLUSTERFS_RDMA_INLINE_THRESHOLD (2048)
#define GLUSTERFS_RDMA_MAX_HEADER_SIZE (228) /* (sizeof (rdma_header_t) \
+ RDMA_MAX_SEGMENTS \
* sizeof (rdma_read_chunk_t))
*/
#define GLUSTERFS_RPC_REPLY_SIZE 24
#define STARTING_EVENT_THREADS 1
#define ZR_FILE_CONTENT_REQUEST(key) (!strncmp(key, ZR_FILE_CONTENT_STR, \
ZR_FILE_CONTENT_STRLEN))
#define DEFAULT_VAR_RUN_DIRECTORY DATADIR "/run/gluster"
#define DEFAULT_GLUSTERFSD_MISC_DIRETORY DATADIR "/lib/misc/glusterfsd"
#ifdef GF_LINUX_HOST_OS
#define GLUSTERD_DEFAULT_WORKDIR DATADIR "/lib/glusterd"
#else
#define GLUSTERD_DEFAULT_WORKDIR DATADIR "/db/glusterd"
#endif
#define GF_REPLICATE_TRASH_DIR ".landfill"
/* GlusterFS's maximum supported Auxiliary GIDs */
/* TODO: Keeping it to 200, so that we can fit in 2KB buffer for auth data
* in RPC server code, if there is ever need for having more aux-gids, then
* we have to add aux-gid in payload of actors */
#define GF_MAX_AUX_GROUPS 65535
#define GF_UUID_BUF_SIZE 50
#define GF_REBALANCE_TID_KEY "rebalance-id"
#define GF_REMOVE_BRICK_TID_KEY "remove-brick-id"
#define UUID_CANONICAL_FORM_LEN 36
/* Adding this here instead of any glusterd*.h files as it is also required by
* cli
*/
#define DEFAULT_GLUSTERD_SOCKFILE DATADIR "/run/glusterd.socket"
/* features/marker-quota also needs to have knowledge of link-files so as to
* exclude them from accounting.
*/
#define DHT_LINKFILE_MODE (S_ISVTX)
#define IS_DHT_LINKFILE_MODE(iabuf) ((st_mode_from_ia ((iabuf)->ia_prot, \
(iabuf)->ia_type) & ~S_IFMT)\
== DHT_LINKFILE_MODE)
#define DHT_LINKFILE_STR "linkto"
#define DHT_COMMITHASH_STR "commithash"
#define DHT_SKIP_NON_LINKTO_UNLINK "unlink-only-if-dht-linkto-file"
#define TIER_SKIP_NON_LINKTO_UNLINK "unlink-only-if-tier-linkto-file"
#define TIER_LINKFILE_GFID "tier-linkfile-gfid"
#define DHT_SKIP_OPEN_FD_UNLINK "dont-unlink-for-open-fd"
#define DHT_IATT_IN_XDATA_KEY "dht-get-iatt-in-xattr"
#define GET_LINK_COUNT "get-link-count"
/*CTR and Marker requires inode dentry link count from posix*/
#define GF_RESPONSE_LINK_COUNT_XDATA "gf_response_link_count"
#define GF_REQUEST_LINK_COUNT_XDATA "gf_request_link_count"
#define CTR_ATTACH_TIER_LOOKUP "ctr_attach_tier_lookup"
#define GF_LOG_LRU_BUFSIZE_DEFAULT 5
#define GF_LOG_LRU_BUFSIZE_MIN 0
#define GF_LOG_LRU_BUFSIZE_MAX 20
#define GF_LOG_LRU_BUFSIZE_MIN_STR "0"
#define GF_LOG_LRU_BUFSIZE_MAX_STR "20"
#define GF_LOG_FLUSH_TIMEOUT_DEFAULT 120
#define GF_LOG_FLUSH_TIMEOUT_MIN 30
#define GF_LOG_FLUSH_TIMEOUT_MAX 300
#define GF_LOG_FLUSH_TIMEOUT_MIN_STR "30"
#define GF_LOG_FLUSH_TIMEOUT_MAX_STR "300"
#define GF_BACKTRACE_LEN 4096
#define GF_BACKTRACE_FRAME_COUNT 7
#define GF_LK_ADVISORY 0
#define GF_LK_MANDATORY 1
const char *fop_enum_to_pri_string (glusterfs_fop_t fop);
const char *fop_enum_to_string (glusterfs_fop_t fop);
#define GF_SET_IF_NOT_PRESENT 0x1 /* default behaviour */
#define GF_SET_OVERWRITE 0x2 /* Overwrite with the buf given */
#define GF_SET_DIR_ONLY 0x4
#define GF_SET_EPOCH_TIME 0x8 /* used by afr dir lookup selfheal */
/* key value which quick read uses to get small files in lookup cbk */
#define GF_CONTENT_KEY "glusterfs.content"
struct _xlator_cmdline_option {
struct list_head cmd_args;
char *volume;
char *key;
char *value;
};
typedef struct _xlator_cmdline_option xlator_cmdline_option_t;
struct _server_cmdline {
struct list_head list;
char *volfile_server;
char *transport;
int port;
};
typedef struct _server_cmdline server_cmdline_t;
#define GF_OPTION_ENABLE _gf_true
#define GF_OPTION_DISABLE _gf_false
#define GF_OPTION_DEFERRED 2
struct _cmd_args {
/* basic options */
char *volfile_server;
server_cmdline_t *curr_server;
/* List of backup volfile servers, including original */
struct list_head volfile_servers;
char *volfile;
char *log_server;
gf_loglevel_t log_level;
char *log_file;
char *log_ident;
gf_log_logger_t logger;
gf_log_format_t log_format;
uint32_t log_buf_size;
uint32_t log_flush_timeout;
int32_t max_connect_attempts;
char *print_exports;
char *print_netgroups;
/* advanced options */
uint32_t volfile_server_port;
char *volfile_server_transport;
uint32_t log_server_port;
char *pid_file;
char *sock_file;
int no_daemon_mode;
char *run_id;
int debug_mode;
int read_only;
int acl;
int selinux;
int capability;
char *oom_score_adj;
int enable_ino32;
int worm;
int mac_compat;
int fopen_keep_cache;
int gid_timeout;
char gid_timeout_set;
int aux_gfid_mount;
/* need a process wide timer-wheel? */
int global_timer_wheel;
struct list_head xlator_options; /* list of xlator_option_t */
/* fuse options */
int fuse_direct_io_mode;
char *use_readdirp;
int no_root_squash;
int volfile_check;
double fuse_entry_timeout;
double fuse_negative_timeout;
double fuse_attribute_timeout;
char *volume_name;
int fuse_nodev;
int fuse_nosuid;
char *dump_fuse;
pid_t client_pid;
int client_pid_set;
unsigned uid_map_root;
int background_qlen;
int congestion_threshold;
char *fuse_mountopts;
int mem_acct;
int resolve_gids;
/* key args */
char *mount_point;
char *volfile_id;
/* required for portmap */
int brick_port;
char *brick_name;
int brick_port2;
/* Should management connections use SSL? */
int secure_mgmt;
};
typedef struct _cmd_args cmd_args_t;
struct _glusterfs_graph {
struct list_head list;
char graph_uuid[128];
struct timeval dob;
void *first;
void *top; /* selected by -n */
uint32_t leaf_count;
int xl_count;
int id; /* Used in logging */
int used; /* Should be set when fuse gets
first CHILD_UP */
uint32_t volfile_checksum;
};
typedef struct _glusterfs_graph glusterfs_graph_t;
typedef int32_t (*glusterfsd_mgmt_event_notify_fn_t) (int32_t event, void *data,
...);
typedef enum {
MGMT_SSL_NEVER = 0,
MGMT_SSL_COPY_IO,
MGMT_SSL_ALWAYS
} mgmt_ssl_t;
struct tvec_base;
struct _glusterfs_ctx {
cmd_args_t cmd_args;
char *process_uuid;
FILE *pidfp;
char fin;
void *timer;
void *ib;
struct call_pool *pool;
void *event_pool;
void *iobuf_pool;
void *logbuf_pool;
gf_lock_t lock;
size_t page_size;
struct list_head graphs; /* double linked list of graphs - one per volfile parse */
glusterfs_graph_t *active; /* the latest graph in use */
void *master; /* fuse, or libglusterfsclient (however, not protocol/server) */
void *mgmt; /* xlator implementing MOPs for centralized logging, volfile server */
void *listener; /* listener of the commands from glusterd */
unsigned char measure_latency; /* toggle switch for latency measurement */
pthread_t sigwaiter;
char *cmdlinestr;
struct mem_pool *stub_mem_pool;
unsigned char cleanup_started;
int graph_id; /* Incremented per graph, value should
indicate how many times the graph has
got changed */
pid_t mnt_pid; /* pid of the mount agent */
int process_mode; /*mode in which process is runninng*/
struct syncenv *env; /* The env pointer to the synctasks */
struct list_head mempool_list; /* used to keep a global list of
mempools, used to log details of
mempool in statedump */
char *statedump_path;
struct mem_pool *dict_pool;
struct mem_pool *dict_pair_pool;
struct mem_pool *dict_data_pool;
glusterfsd_mgmt_event_notify_fn_t notify; /* Used for xlators to make
call to fsd-mgmt */
gf_log_handle_t log; /* all logging related variables */
int mem_acct_enable;
int daemon_pipe[2];
struct clienttable *clienttable;
/*
* Should management connections use SSL? This is the only place we
* can put it where both daemon-startup and socket code will see it.
*
* Why is it an int? Because we're included before common-utils.h,
* which defines gf_boolean_t (what we really want). It doesn't make
* any sense, but it's not worth turning the codebase upside-down to
* fix it. Thus, an int.
*/
int secure_mgmt;
/*
* Should *our* server/inbound connections use SSL? This is only true
* if we're glusterd and secure_mgmt is set, or if we're glusterfsd
* and SSL is set on the I/O path. It should never be set e.g. for
* NFS.
*/
mgmt_ssl_t secure_srvr;
/* Buffer to 'save' backtrace even under OOM-kill like situations*/
char btbuf[GF_BACKTRACE_LEN];
pthread_mutex_t notify_lock;
pthread_cond_t notify_cond;
int notifying;
struct tvec_base *timer_wheel; /* global timer-wheel instance */
};
typedef struct _glusterfs_ctx glusterfs_ctx_t;
glusterfs_ctx_t *glusterfs_ctx_new (void);
struct gf_flock {
short l_type;
short l_whence;
off_t l_start;
off_t l_len;
pid_t l_pid;
gf_lkowner_t l_owner;
};
typedef struct lock_migration_info {
struct list_head list;
struct gf_flock flock;
char *client_uid;
uint32_t lk_flags;
} lock_migration_info_t;
#define GF_MUST_CHECK __attribute__((warn_unused_result))
/*
* Some macros (e.g. ALLOC_OR_GOTO) set variables in function scope, but the
* calling function might not only declare the variable to keep the macro happy
* and not use it otherwise. In such cases, the following can be used to
* suppress the "set but not used" warning that would otherwise occur.
*/
#define GF_UNUSED __attribute__((unused))
/*
* If present, this has the following effects:
*
* glusterd enables privileged commands over TCP
*
* all code enables SSL for outbound connections to management port
*
* glusterd enables SSL for inbound connections
*
* Servers and clients enable/disable SSL among themselves by other means.
* Making secure management connections conditional on a file is a bit of a
* hack, but we don't have any other place for such global settings across
* all of the affected components. Making it a compile-time option would
* reduce functionality, both for users and for testing (which can now be
* done using secure connections for all tests without change elsewhere).
*
*/
#define SECURE_ACCESS_FILE GLUSTERD_DEFAULT_WORKDIR "/secure-access"
int glusterfs_graph_prepare (glusterfs_graph_t *graph, glusterfs_ctx_t *ctx);
int glusterfs_graph_destroy_residual (glusterfs_graph_t *graph);
int glusterfs_graph_deactivate (glusterfs_graph_t *graph);
int glusterfs_graph_destroy (glusterfs_graph_t *graph);
int glusterfs_get_leaf_count (glusterfs_graph_t *graph);
int glusterfs_graph_activate (glusterfs_graph_t *graph, glusterfs_ctx_t *ctx);
glusterfs_graph_t *glusterfs_graph_construct (FILE *fp);
glusterfs_graph_t *glusterfs_graph_new (void);
int glusterfs_graph_reconfigure (glusterfs_graph_t *oldgraph,
glusterfs_graph_t *newgraph);
void
gf_free_mig_locks (lock_migration_info_t *locks);
#endif /* _GLUSTERFS_H */
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