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/*
drbd.h
This file is part of DRBD by Philipp Reisner and Lars Ellenberg.
Copyright (C) 2003-2008, LINBIT Information Technologies GmbH.
Copyright (C) 2003-2008, Philipp Reisner <philipp.reisner@linbit.com>.
Copyright (C) 2003-2008, Lars Ellenberg <lars.ellenberg@linbit.com>.
drbd is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
drbd is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with drbd; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/drbd.h>
#include "drbd_strings.h"
#include "drbd_protocol.h"
static const char * const __conn_state_names[] = {
[C_STANDALONE] = "StandAlone",
[C_DISCONNECTING] = "Disconnecting",
[C_UNCONNECTED] = "Unconnected",
[C_TIMEOUT] = "Timeout",
[C_BROKEN_PIPE] = "BrokenPipe",
[C_NETWORK_FAILURE] = "NetworkFailure",
[C_PROTOCOL_ERROR] = "ProtocolError",
[C_TEAR_DOWN] = "TearDown",
[C_CONNECTING] = "Connecting",
[C_CONNECTED] = "Connected",
};
struct state_names drbd_conn_state_names = {
.names = __conn_state_names,
.size = sizeof __conn_state_names / sizeof __conn_state_names[0],
};
static const char * const __repl_state_names[] = {
[L_OFF] = "Off",
[L_ESTABLISHED] = "Established",
[L_STARTING_SYNC_S] = "StartingSyncS",
[L_STARTING_SYNC_T] = "StartingSyncT",
[L_WF_BITMAP_S] = "WFBitMapS",
[L_WF_BITMAP_T] = "WFBitMapT",
[L_WF_SYNC_UUID] = "WFSyncUUID",
[L_SYNC_SOURCE] = "SyncSource",
[L_SYNC_TARGET] = "SyncTarget",
[L_VERIFY_S] = "VerifyS",
[L_VERIFY_T] = "VerifyT",
[L_PAUSED_SYNC_S] = "PausedSyncS",
[L_PAUSED_SYNC_T] = "PausedSyncT",
[L_AHEAD] = "Ahead",
[L_BEHIND] = "Behind",
};
struct state_names drbd_repl_state_names = {
.names = __repl_state_names,
.size = sizeof __repl_state_names / sizeof __repl_state_names[0],
};
static const char * const __role_state_names[] = {
[R_UNKNOWN] = "Unknown",
[R_PRIMARY] = "Primary",
[R_SECONDARY] = "Secondary",
};
struct state_names drbd_role_state_names = {
.names = __role_state_names,
.size = sizeof __role_state_names / sizeof __role_state_names[0],
};
static const char * const __disk_state_names[] = {
[D_DISKLESS] = "Diskless",
[D_ATTACHING] = "Attaching",
[D_DETACHING] = "Detaching",
[D_FAILED] = "Failed",
[D_NEGOTIATING] = "Negotiating",
[D_INCONSISTENT] = "Inconsistent",
[D_OUTDATED] = "Outdated",
[D_UNKNOWN] = "DUnknown",
[D_CONSISTENT] = "Consistent",
[D_UP_TO_DATE] = "UpToDate",
};
struct state_names drbd_disk_state_names = {
.names = __disk_state_names,
.size = sizeof __disk_state_names / sizeof __disk_state_names[0],
};
static const char * const __error_messages[] = {
[-SS_TWO_PRIMARIES] = "Multiple primaries not allowed by config",
[-SS_NO_UP_TO_DATE_DISK] = "Need access to UpToDate data",
[-SS_NO_LOCAL_DISK] = "Can not resync without local disk",
[-SS_NO_REMOTE_DISK] = "Can not resync without remote disk",
[-SS_CONNECTED_OUTDATES] = "Refusing to be Outdated while Connected",
[-SS_PRIMARY_NOP] = "Refusing to be Primary while peer is not outdated",
[-SS_RESYNC_RUNNING] = "Can not start OV/resync since it is already active",
[-SS_ALREADY_STANDALONE] = "Can not disconnect a StandAlone device",
[-SS_CW_FAILED_BY_PEER] = "State change was refused by peer node",
[-SS_IS_DISKLESS] = "Device is diskless, the requested operation requires a disk",
[-SS_DEVICE_IN_USE] = "Device is held open by someone",
[-SS_NO_NET_CONFIG] = "Have no net/connection configuration",
[-SS_NO_VERIFY_ALG] = "Need a verify algorithm to start online verify",
[-SS_NEED_CONNECTION] = "Need a connection to start verify or resync",
[-SS_NOT_SUPPORTED] = "Peer does not support protocol",
[-SS_LOWER_THAN_OUTDATED] = "Disk state is lower than outdated",
[-SS_IN_TRANSIENT_STATE] = "In transient state, retry after next state change",
[-SS_CONCURRENT_ST_CHG] = "Concurrent state changes detected and aborted",
[-SS_O_VOL_PEER_PRI] = "Other vol primary on peer not allowed by config",
[-SS_PRIMARY_READER] = "Peer may not become primary while device is opened read-only",
[-SS_INTERRUPTED] = "Interrupted state change",
[-SS_TIMEOUT] = "Timeout in operation",
[-SS_WEAKLY_CONNECTED] = "Primary nodes must be strongly connected among each other",
[-SS_NO_QUORUM] = "No quorum",
[-SS_ATTACH_NO_BITMAP] = "Intentional diskless peer may not attach a disk",
};
struct state_names drbd_error_messages = {
.names = __error_messages,
.size = sizeof __error_messages / sizeof __error_messages[0],
};
static const char * const __packet_names[] = {
[P_DATA] = "P_DATA",
[P_WSAME] = "P_WSAME",
[P_TRIM] = "P_TRIM",
[P_DATA_REPLY] = "P_DATA_REPLY",
[P_RS_DATA_REPLY] = "P_RS_DATA_REPLY",
[P_BARRIER] = "P_BARRIER",
[P_BITMAP] = "P_BITMAP",
[P_BECOME_SYNC_TARGET] = "P_BECOME_SYNC_TARGET",
[P_BECOME_SYNC_SOURCE] = "P_BECOME_SYNC_SOURCE",
[P_UNPLUG_REMOTE] = "P_UNPLUG_REMOTE",
[P_DATA_REQUEST] = "P_DATA_REQUEST",
[P_RS_DATA_REQUEST] = "P_RS_DATA_REQUEST",
[P_SYNC_PARAM] = "P_SYNC_PARAM",
[P_SYNC_PARAM89] = "P_SYNC_PARAM89",
[P_PROTOCOL] = "P_PROTOCOL",
[P_UUIDS] = "P_UUIDS",
[P_SIZES] = "P_SIZES",
[P_STATE] = "P_STATE",
[P_SYNC_UUID] = "P_SYNC_UUID",
[P_AUTH_CHALLENGE] = "P_AUTH_CHALLENGE",
[P_AUTH_RESPONSE] = "P_AUTH_RESPONSE",
[P_PING] = "P_PING",
[P_PING_ACK] = "P_PING_ACK",
[P_RECV_ACK] = "P_RECV_ACK",
[P_WRITE_ACK] = "P_WRITE_ACK",
[P_RS_WRITE_ACK] = "P_RS_WRITE_ACK",
[P_SUPERSEDED] = "P_SUPERSEDED",
[P_NEG_ACK] = "P_NEG_ACK",
[P_NEG_DREPLY] = "P_NEG_DREPLY",
[P_NEG_RS_DREPLY] = "P_NEG_RS_DREPLY",
[P_BARRIER_ACK] = "P_BARRIER_ACK",
[P_STATE_CHG_REQ] = "P_STATE_CHG_REQ",
[P_STATE_CHG_REPLY] = "P_STATE_CHG_REPLY",
[P_OV_REQUEST] = "P_OV_REQUEST",
[P_OV_REPLY] = "P_OV_REPLY",
[P_OV_RESULT] = "P_OV_RESULT",
[P_CSUM_RS_REQUEST] = "P_CSUM_RS_REQUEST",
[P_RS_IS_IN_SYNC] = "P_RS_IS_IN_SYNC",
[P_COMPRESSED_BITMAP] = "P_COMPRESSED_BITMAP",
[P_DELAY_PROBE] = "P_DELAY_PROBE",
[P_OUT_OF_SYNC] = "P_OUT_OF_SYNC",
[P_RETRY_WRITE] = "P_RETRY_WRITE",
[P_RS_CANCEL] = "P_RS_CANCEL",
[P_CONN_ST_CHG_REQ] = "P_CONN_ST_CHG_REQ",
[P_CONN_ST_CHG_REPLY] = "P_CONN_ST_CHG_REPLY",
[P_PROTOCOL_UPDATE] = "P_PROTOCOL_UPDATE",
[P_TWOPC_PREPARE] = "P_TWOPC_PREPARE",
[P_TWOPC_ABORT] = "P_TWOPC_ABORT",
[P_DAGTAG] = "P_DAGTAG",
[P_PEER_ACK] = "P_PEER_ACK",
[P_PEERS_IN_SYNC] = "P_PEERS_IN_SYNC",
[P_UUIDS110] = "P_UUIDS110",
[P_PEER_DAGTAG] = "P_PEER_DAGTAG",
[P_CURRENT_UUID] = "P_CURRENT_UUID",
[P_TWOPC_COMMIT] = "P_TWOPC_COMMIT",
[P_TWOPC_YES] = "P_TWOPC_YES",
[P_TWOPC_NO] = "P_TWOPC_NO",
[P_TWOPC_RETRY] = "P_TWOPC_RETRY",
/* enum drbd_packet, but not commands - obsoleted flags:
* P_MAY_IGNORE
* P_MAX_OPT_CMD
*/
};
struct state_names drbd_packet_names = {
.names = __packet_names,
.size = sizeof __packet_names / sizeof __packet_names[0],
};
const char *drbd_repl_str(enum drbd_repl_state s)
{
return (s < 0 || s >= drbd_repl_state_names.size ||
!drbd_repl_state_names.names[s]) ?
"?" : drbd_repl_state_names.names[s];
}
const char *drbd_conn_str(enum drbd_conn_state s)
{
return (s < 0 || s >= drbd_conn_state_names.size ||
!drbd_conn_state_names.names[s]) ?
"?" : drbd_conn_state_names.names[s];
}
const char *drbd_role_str(enum drbd_role s)
{
return (s < 0 || s >= drbd_role_state_names.size ||
!drbd_role_state_names.names[s]) ?
"?" : drbd_role_state_names.names[s];
}
const char *drbd_disk_str(enum drbd_disk_state s)
{
return (s < 0 || s >= drbd_disk_state_names.size ||
!drbd_disk_state_names.names[s]) ?
"?" : drbd_disk_state_names.names[s];
}
const char *drbd_set_st_err_str(enum drbd_state_rv err)
{
return (-err < 0 || -err >= drbd_error_messages.size ||
!drbd_error_messages.names[-err]) ?
"?" : drbd_error_messages.names[-err];
}
const char *drbd_packet_name(enum drbd_packet cmd)
{
/* too big for the array: 0xfffX */
if (cmd == P_INITIAL_META)
return "InitialMeta";
if (cmd == P_INITIAL_DATA)
return "InitialData";
if (cmd == P_CONNECTION_FEATURES)
return "ConnectionFeatures";
return (cmd < 0 || cmd >= ARRAY_SIZE(__packet_names) ||
!__packet_names[cmd]) ?
"?" : __packet_names[cmd];
}
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