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drbd_strings.c
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1 /*
2  drbd.h
3 
4  This file is part of DRBD by Philipp Reisner and Lars Ellenberg.
5 
6  Copyright (C) 2003-2008, LINBIT Information Technologies GmbH.
7  Copyright (C) 2003-2008, Philipp Reisner <[email protected]>.
8  Copyright (C) 2003-2008, Lars Ellenberg <[email protected]>.
9 
10  drbd is free software; you can redistribute it and/or modify
11  it under the terms of the GNU General Public License as published by
12  the Free Software Foundation; either version 2, or (at your option)
13  any later version.
14 
15  drbd is distributed in the hope that it will be useful,
16  but WITHOUT ANY WARRANTY; without even the implied warranty of
17  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18  GNU General Public License for more details.
19 
20  You should have received a copy of the GNU General Public License
21  along with drbd; see the file COPYING. If not, write to
22  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
23 
24 */
25 
26 #include <linux/drbd.h>
27 
28 static const char *drbd_conn_s_names[] = {
29  [C_STANDALONE] = "StandAlone",
30  [C_DISCONNECTING] = "Disconnecting",
31  [C_UNCONNECTED] = "Unconnected",
32  [C_TIMEOUT] = "Timeout",
33  [C_BROKEN_PIPE] = "BrokenPipe",
34  [C_NETWORK_FAILURE] = "NetworkFailure",
35  [C_PROTOCOL_ERROR] = "ProtocolError",
36  [C_WF_CONNECTION] = "WFConnection",
37  [C_WF_REPORT_PARAMS] = "WFReportParams",
38  [C_TEAR_DOWN] = "TearDown",
39  [C_CONNECTED] = "Connected",
40  [C_STARTING_SYNC_S] = "StartingSyncS",
41  [C_STARTING_SYNC_T] = "StartingSyncT",
42  [C_WF_BITMAP_S] = "WFBitMapS",
43  [C_WF_BITMAP_T] = "WFBitMapT",
44  [C_WF_SYNC_UUID] = "WFSyncUUID",
45  [C_SYNC_SOURCE] = "SyncSource",
46  [C_SYNC_TARGET] = "SyncTarget",
47  [C_PAUSED_SYNC_S] = "PausedSyncS",
48  [C_PAUSED_SYNC_T] = "PausedSyncT",
49  [C_VERIFY_S] = "VerifyS",
50  [C_VERIFY_T] = "VerifyT",
51  [C_AHEAD] = "Ahead",
52  [C_BEHIND] = "Behind",
53 };
54 
55 static const char *drbd_role_s_names[] = {
56  [R_PRIMARY] = "Primary",
57  [R_SECONDARY] = "Secondary",
58  [R_UNKNOWN] = "Unknown"
59 };
60 
61 static const char *drbd_disk_s_names[] = {
62  [D_DISKLESS] = "Diskless",
63  [D_ATTACHING] = "Attaching",
64  [D_FAILED] = "Failed",
65  [D_NEGOTIATING] = "Negotiating",
66  [D_INCONSISTENT] = "Inconsistent",
67  [D_OUTDATED] = "Outdated",
68  [D_UNKNOWN] = "DUnknown",
69  [D_CONSISTENT] = "Consistent",
70  [D_UP_TO_DATE] = "UpToDate",
71 };
72 
73 static const char *drbd_state_sw_errors[] = {
74  [-SS_TWO_PRIMARIES] = "Multiple primaries not allowed by config",
75  [-SS_NO_UP_TO_DATE_DISK] = "Need access to UpToDate data",
76  [-SS_NO_LOCAL_DISK] = "Can not resync without local disk",
77  [-SS_NO_REMOTE_DISK] = "Can not resync without remote disk",
78  [-SS_CONNECTED_OUTDATES] = "Refusing to be Outdated while Connected",
79  [-SS_PRIMARY_NOP] = "Refusing to be Primary while peer is not outdated",
80  [-SS_RESYNC_RUNNING] = "Can not start OV/resync since it is already active",
81  [-SS_ALREADY_STANDALONE] = "Can not disconnect a StandAlone device",
82  [-SS_CW_FAILED_BY_PEER] = "State change was refused by peer node",
83  [-SS_IS_DISKLESS] = "Device is diskless, the requested operation requires a disk",
84  [-SS_DEVICE_IN_USE] = "Device is held open by someone",
85  [-SS_NO_NET_CONFIG] = "Have no net/connection configuration",
86  [-SS_NO_VERIFY_ALG] = "Need a verify algorithm to start online verify",
87  [-SS_NEED_CONNECTION] = "Need a connection to start verify or resync",
88  [-SS_NOT_SUPPORTED] = "Peer does not support protocol",
89  [-SS_LOWER_THAN_OUTDATED] = "Disk state is lower than outdated",
90  [-SS_IN_TRANSIENT_STATE] = "In transient state, retry after next state change",
91  [-SS_CONCURRENT_ST_CHG] = "Concurrent state changes detected and aborted",
92 };
93 
94 const char *drbd_conn_str(enum drbd_conns s)
95 {
96  /* enums are unsigned... */
97  return s > C_BEHIND ? "TOO_LARGE" : drbd_conn_s_names[s];
98 }
99 
100 const char *drbd_role_str(enum drbd_role s)
101 {
102  return s > R_SECONDARY ? "TOO_LARGE" : drbd_role_s_names[s];
103 }
104 
105 const char *drbd_disk_str(enum drbd_disk_state s)
106 {
107  return s > D_UP_TO_DATE ? "TOO_LARGE" : drbd_disk_s_names[s];
108 }
109 
111 {
112  return err <= SS_AFTER_LAST_ERROR ? "TOO_SMALL" :
113  err > SS_TWO_PRIMARIES ? "TOO_LARGE"
114  : drbd_state_sw_errors[-err];
115 }