1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* AFS Volume Location Service client interface
3 *
4 * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
5 * Written by David Howells (dhowells@redhat.com)
6 */
7
8 #ifndef AFS_VL_H
9 #define AFS_VL_H
10
11 #include "afs.h"
12
13 #define AFS_VL_PORT 7003 /* volume location service port */
14 #define VL_SERVICE 52 /* RxRPC service ID for the Volume Location service */
15 #define YFS_VL_SERVICE 2503 /* Service ID for AuriStor upgraded VL service */
16
17 enum AFSVL_Operations {
18 VLGETENTRYBYID = 503, /* AFS Get VLDB entry by ID */
19 VLGETENTRYBYNAME = 504, /* AFS Get VLDB entry by name */
20 VLPROBE = 514, /* AFS probe VL service */
21 VLGETENTRYBYIDU = 526, /* AFS Get VLDB entry by ID (UUID-variant) */
22 VLGETENTRYBYNAMEU = 527, /* AFS Get VLDB entry by name (UUID-variant) */
23 VLGETADDRSU = 533, /* AFS Get addrs for fileserver */
24 YVLGETENDPOINTS = 64002, /* YFS Get endpoints for file/volume server */
25 YVLGETCELLNAME = 64014, /* YFS Get actual cell name */
26 VLGETCAPABILITIES = 65537, /* AFS Get server capabilities */
27 };
28
29 enum AFSVL_Errors {
30 AFSVL_IDEXIST = 363520, /* Volume Id entry exists in vl database */
31 AFSVL_IO = 363521, /* I/O related error */
32 AFSVL_NAMEEXIST = 363522, /* Volume name entry exists in vl database */
33 AFSVL_CREATEFAIL = 363523, /* Internal creation failure */
34 AFSVL_NOENT = 363524, /* No such entry */
35 AFSVL_EMPTY = 363525, /* Vl database is empty */
36 AFSVL_ENTDELETED = 363526, /* Entry is deleted (soft delete) */
37 AFSVL_BADNAME = 363527, /* Volume name is illegal */
38 AFSVL_BADINDEX = 363528, /* Index is out of range */
39 AFSVL_BADVOLTYPE = 363529, /* Bad volume type */
40 AFSVL_BADSERVER = 363530, /* Illegal server number (out of range) */
41 AFSVL_BADPARTITION = 363531, /* Bad partition number */
42 AFSVL_REPSFULL = 363532, /* Run out of space for Replication sites */
43 AFSVL_NOREPSERVER = 363533, /* No such Replication server site exists */
44 AFSVL_DUPREPSERVER = 363534, /* Replication site already exists */
45 AFSVL_RWNOTFOUND = 363535, /* Parent R/W entry not found */
46 AFSVL_BADREFCOUNT = 363536, /* Illegal Reference Count number */
47 AFSVL_SIZEEXCEEDED = 363537, /* Vl size for attributes exceeded */
48 AFSVL_BADENTRY = 363538, /* Bad incoming vl entry */
49 AFSVL_BADVOLIDBUMP = 363539, /* Illegal max volid increment */
50 AFSVL_IDALREADYHASHED = 363540, /* RO/BACK id already hashed */
51 AFSVL_ENTRYLOCKED = 363541, /* Vl entry is already locked */
52 AFSVL_BADVOLOPER = 363542, /* Bad volume operation code */
53 AFSVL_BADRELLOCKTYPE = 363543, /* Bad release lock type */
54 AFSVL_RERELEASE = 363544, /* Status report: last release was aborted */
55 AFSVL_BADSERVERFLAG = 363545, /* Invalid replication site server flag */
56 AFSVL_PERM = 363546, /* No permission access */
57 AFSVL_NOMEM = 363547, /* malloc/realloc failed to alloc enough memory */
58 };
59
60 enum {
61 YFS_SERVER_INDEX = 0,
62 YFS_SERVER_UUID = 1,
63 YFS_SERVER_ENDPOINT = 2,
64 };
65
66 enum {
67 YFS_ENDPOINT_IPV4 = 0,
68 YFS_ENDPOINT_IPV6 = 1,
69 };
70
71 #define YFS_MAXENDPOINTS 16
72
73 /*
74 * maps to "struct vldbentry" in vvl-spec.pdf
75 */
76 struct afs_vldbentry {
77 char name[65]; /* name of volume (with NUL char) */
78 afs_voltype_t type; /* volume type */
79 unsigned num_servers; /* num servers that hold instances of this vol */
80 unsigned clone_id; /* cloning ID */
81
82 unsigned flags;
83 #define AFS_VLF_RWEXISTS 0x1000 /* R/W volume exists */
84 #define AFS_VLF_ROEXISTS 0x2000 /* R/O volume exists */
85 #define AFS_VLF_BACKEXISTS 0x4000 /* backup volume exists */
86
87 afs_volid_t volume_ids[3]; /* volume IDs */
88
89 struct {
90 struct in_addr addr; /* server address */
91 unsigned partition; /* partition ID on this server */
92 unsigned flags; /* server specific flags */
93 #define AFS_VLSF_NEWREPSITE 0x0001 /* Ignore all 'non-new' servers */
94 #define AFS_VLSF_ROVOL 0x0002 /* this server holds a R/O instance of the volume */
95 #define AFS_VLSF_RWVOL 0x0004 /* this server holds a R/W instance of the volume */
96 #define AFS_VLSF_BACKVOL 0x0008 /* this server holds a backup instance of the volume */
97 #define AFS_VLSF_UUID 0x0010 /* This server is referred to by its UUID */
98 #define AFS_VLSF_DONTUSE 0x0020 /* This server ref should be ignored */
99 } servers[8];
100 };
101
102 #define AFS_VLDB_MAXNAMELEN 65
103
104
105 struct afs_ListAddrByAttributes__xdr {
106 __be32 Mask;
107 #define AFS_VLADDR_IPADDR 0x1 /* Match by ->ipaddr */
108 #define AFS_VLADDR_INDEX 0x2 /* Match by ->index */
109 #define AFS_VLADDR_UUID 0x4 /* Match by ->uuid */
110 __be32 ipaddr;
111 __be32 index;
112 __be32 spare;
113 struct afs_uuid__xdr uuid;
114 };
115
116 struct afs_uvldbentry__xdr {
117 __be32 name[AFS_VLDB_MAXNAMELEN];
118 __be32 nServers;
119 struct afs_uuid__xdr serverNumber[AFS_NMAXNSERVERS];
120 __be32 serverUnique[AFS_NMAXNSERVERS];
121 __be32 serverPartition[AFS_NMAXNSERVERS];
122 __be32 serverFlags[AFS_NMAXNSERVERS];
123 __be32 volumeId[AFS_MAXTYPES];
124 __be32 cloneId;
125 __be32 flags;
126 __be32 spares1;
127 __be32 spares2;
128 __be32 spares3;
129 __be32 spares4;
130 __be32 spares5;
131 __be32 spares6;
132 __be32 spares7;
133 __be32 spares8;
134 __be32 spares9;
135 };
136
137 struct afs_address_list {
138 refcount_t usage;
139 unsigned int version;
140 unsigned int nr_addrs;
141 struct sockaddr_rxrpc addrs[];
142 };
143
144 extern void afs_put_address_list(struct afs_address_list *alist);
145
146 #endif /* AFS_VL_H */
147
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