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2bd0ea18 | 1 | /* |
da23017d NS |
2 | * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
dfc130f3 | 4 | * |
da23017d NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
2bd0ea18 | 7 | * published by the Free Software Foundation. |
dfc130f3 | 8 | * |
da23017d NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
dfc130f3 | 13 | * |
da23017d NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
2bd0ea18 NS |
17 | */ |
18 | ||
6b803e5a | 19 | #include "libxfs.h" |
2bd0ea18 | 20 | #include "command.h" |
2bd0ea18 NS |
21 | #include "type.h" |
22 | #include "faddr.h" | |
23 | #include "fprint.h" | |
24 | #include "field.h" | |
25 | #include "io.h" | |
26 | #include "bit.h" | |
27 | #include "output.h" | |
4ca431fc | 28 | #include "init.h" |
28d8e155 | 29 | #include "agi.h" |
2bd0ea18 NS |
30 | |
31 | static int agi_f(int argc, char **argv); | |
32 | static void agi_help(void); | |
33 | ||
34 | static const cmdinfo_t agi_cmd = | |
9ee7055c AM |
35 | { "agi", NULL, agi_f, 0, 1, 1, N_("[agno]"), |
36 | N_("set address to agi header"), agi_help }; | |
2bd0ea18 NS |
37 | |
38 | const field_t agi_hfld[] = { | |
39 | { "", FLDT_AGI, OI(0), C1, 0, TYP_NONE }, | |
40 | { NULL } | |
41 | }; | |
42 | ||
43 | #define OFF(f) bitize(offsetof(xfs_agi_t, agi_ ## f)) | |
44 | const field_t agi_flds[] = { | |
45 | { "magicnum", FLDT_UINT32X, OI(OFF(magicnum)), C1, 0, TYP_NONE }, | |
46 | { "versionnum", FLDT_UINT32D, OI(OFF(versionnum)), C1, 0, TYP_NONE }, | |
47 | { "seqno", FLDT_AGNUMBER, OI(OFF(seqno)), C1, 0, TYP_NONE }, | |
48 | { "length", FLDT_AGBLOCK, OI(OFF(length)), C1, 0, TYP_NONE }, | |
49 | { "count", FLDT_AGINO, OI(OFF(count)), C1, 0, TYP_NONE }, | |
50 | { "root", FLDT_AGBLOCK, OI(OFF(root)), C1, 0, TYP_INOBT }, | |
51 | { "level", FLDT_UINT32D, OI(OFF(level)), C1, 0, TYP_NONE }, | |
52 | { "freecount", FLDT_AGINO, OI(OFF(freecount)), C1, 0, TYP_NONE }, | |
53 | { "newino", FLDT_AGINO, OI(OFF(newino)), C1, 0, TYP_INODE }, | |
54 | { "dirino", FLDT_AGINO, OI(OFF(dirino)), C1, 0, TYP_INODE }, | |
55 | { "unlinked", FLDT_AGINONN, OI(OFF(unlinked)), | |
56 | CI(XFS_AGI_UNLINKED_BUCKETS), FLD_ARRAY, TYP_NONE }, | |
c2907bd7 DC |
57 | { "uuid", FLDT_UUID, OI(OFF(uuid)), C1, 0, TYP_NONE }, |
58 | { "lsn", FLDT_UINT64X, OI(OFF(lsn)), C1, 0, TYP_NONE }, | |
0522f1cc | 59 | { "crc", FLDT_CRC, OI(OFF(crc)), C1, 0, TYP_NONE }, |
61a15567 | 60 | { "free_root", FLDT_AGBLOCK, OI(OFF(free_root)), C1, 0, TYP_FINOBT }, |
2a0cd7ad | 61 | { "free_level", FLDT_UINT32D, OI(OFF(free_level)), C1, 0, TYP_NONE }, |
2bd0ea18 NS |
62 | { NULL } |
63 | }; | |
64 | ||
65 | static void | |
66 | agi_help(void) | |
67 | { | |
9ee7055c | 68 | dbprintf(_( |
2bd0ea18 NS |
69 | "\n" |
70 | " set allocation group inode btree\n" | |
71 | "\n" | |
72 | " Example:\n" | |
73 | "\n" | |
74 | " agi 3 (set location to 3rd allocation group inode btree and type to 'agi')\n" | |
75 | "\n" | |
76 | " Located in the 3rd 512 byte block of each allocation group,\n" | |
77 | " the agi inode btree tracks all used/free inodes in the allocation group.\n" | |
78 | " Inodes are allocated in 16k 'chunks', each btree entry tracks a 'chunk'.\n" | |
79 | "\n" | |
9ee7055c | 80 | )); |
2bd0ea18 NS |
81 | } |
82 | ||
83 | static int | |
84 | agi_f( | |
85 | int argc, | |
86 | char **argv) | |
87 | { | |
88 | xfs_agnumber_t agno; | |
89 | char *p; | |
90 | ||
91 | if (argc > 1) { | |
92 | agno = (xfs_agnumber_t)strtoul(argv[1], &p, 0); | |
93 | if (*p != '\0' || agno >= mp->m_sb.sb_agcount) { | |
9ee7055c | 94 | dbprintf(_("bad allocation group number %s\n"), argv[1]); |
2bd0ea18 NS |
95 | return 0; |
96 | } | |
97 | cur_agno = agno; | |
98 | } else if (cur_agno == NULLAGNUMBER) | |
99 | cur_agno = 0; | |
100 | ASSERT(typtab[TYP_AGI].typnm == TYP_AGI); | |
9440d84d NS |
101 | set_cur(&typtab[TYP_AGI], |
102 | XFS_AG_DADDR(mp, cur_agno, XFS_AGI_DADDR(mp)), | |
103 | XFS_FSS_TO_BB(mp, 1), DB_RING_ADD, NULL); | |
2bd0ea18 NS |
104 | return 0; |
105 | } | |
106 | ||
107 | void | |
108 | agi_init(void) | |
109 | { | |
110 | add_command(&agi_cmd); | |
111 | } | |
112 | ||
113 | /*ARGSUSED*/ | |
114 | int | |
115 | agi_size( | |
116 | void *obj, | |
117 | int startoff, | |
118 | int idx) | |
119 | { | |
120 | return bitize(mp->m_sb.sb_sectsize); | |
121 | } |