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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 "convert.h" |
22 | #include "output.h" | |
4ca431fc | 23 | #include "init.h" |
2bd0ea18 NS |
24 | |
25 | #define M(A) (1 << CT_ ## A) | |
26 | #define agblock_to_bytes(x) \ | |
27 | ((__uint64_t)(x) << mp->m_sb.sb_blocklog) | |
28 | #define agino_to_bytes(x) \ | |
29 | ((__uint64_t)(x) << mp->m_sb.sb_inodelog) | |
30 | #define agnumber_to_bytes(x) \ | |
31 | agblock_to_bytes((__uint64_t)(x) * mp->m_sb.sb_agblocks) | |
32 | #define daddr_to_bytes(x) \ | |
33 | ((__uint64_t)(x) << BBSHIFT) | |
34 | #define fsblock_to_bytes(x) \ | |
35 | (agnumber_to_bytes(XFS_FSB_TO_AGNO(mp, (x))) + \ | |
36 | agblock_to_bytes(XFS_FSB_TO_AGBNO(mp, (x)))) | |
37 | #define ino_to_bytes(x) \ | |
38 | (agnumber_to_bytes(XFS_INO_TO_AGNO(mp, (x))) + \ | |
39 | agino_to_bytes(XFS_INO_TO_AGINO(mp, (x)))) | |
40 | #define inoidx_to_bytes(x) \ | |
41 | ((__uint64_t)(x) << mp->m_sb.sb_inodelog) | |
42 | ||
43 | typedef enum { | |
dfc130f3 | 44 | CT_NONE = -1, |
2bd0ea18 NS |
45 | CT_AGBLOCK, /* xfs_agblock_t */ |
46 | CT_AGINO, /* xfs_agino_t */ | |
47 | CT_AGNUMBER, /* xfs_agno_t */ | |
48 | CT_BBOFF, /* byte offset in daddr */ | |
49 | CT_BLKOFF, /* byte offset in fsb/agb */ | |
50 | CT_BYTE, /* byte in filesystem */ | |
51 | CT_DADDR, /* daddr_t */ | |
52 | CT_FSBLOCK, /* xfs_fsblock_t */ | |
53 | CT_INO, /* xfs_ino_t */ | |
54 | CT_INOIDX, /* index of inode in fsblock */ | |
55 | CT_INOOFF, /* byte offset in inode */ | |
56 | NCTS | |
57 | } ctype_t; | |
58 | ||
59 | typedef struct ctydesc { | |
60 | ctype_t ctype; | |
61 | int allowed; | |
62 | const char **names; | |
63 | } ctydesc_t; | |
64 | ||
65 | typedef union { | |
66 | xfs_agblock_t agblock; | |
67 | xfs_agino_t agino; | |
68 | xfs_agnumber_t agnumber; | |
69 | int bboff; | |
70 | int blkoff; | |
71 | __uint64_t byte; | |
72 | xfs_daddr_t daddr; | |
73 | xfs_fsblock_t fsblock; | |
74 | xfs_ino_t ino; | |
75 | int inoidx; | |
76 | int inooff; | |
77 | } cval_t; | |
78 | ||
79 | static __uint64_t bytevalue(ctype_t ctype, cval_t *val); | |
80 | static int convert_f(int argc, char **argv); | |
81 | static int getvalue(char *s, ctype_t ctype, cval_t *val); | |
82 | static ctype_t lookupcty(char *ctyname); | |
83 | ||
84 | static const char *agblock_names[] = { "agblock", "agbno", NULL }; | |
85 | static const char *agino_names[] = { "agino", "aginode", NULL }; | |
86 | static const char *agnumber_names[] = { "agnumber", "agno", NULL }; | |
87 | static const char *bboff_names[] = { "bboff", "daddroff", NULL }; | |
88 | static const char *blkoff_names[] = { "blkoff", "fsboff", "agboff", | |
89 | NULL }; | |
90 | static const char *byte_names[] = { "byte", "fsbyte", NULL }; | |
91 | static const char *daddr_names[] = { "daddr", "bb", NULL }; | |
92 | static const char *fsblock_names[] = { "fsblock", "fsb", "fsbno", NULL }; | |
93 | static const char *ino_names[] = { "ino", "inode", NULL }; | |
94 | static const char *inoidx_names[] = { "inoidx", "offset", NULL }; | |
95 | static const char *inooff_names[] = { "inooff", "inodeoff", NULL }; | |
96 | ||
97 | static const ctydesc_t ctydescs[NCTS] = { | |
98 | { CT_AGBLOCK, M(AGNUMBER)|M(BBOFF)|M(BLKOFF)|M(INOIDX)|M(INOOFF), | |
99 | agblock_names }, | |
100 | { CT_AGINO, M(AGNUMBER)|M(INOOFF), agino_names }, | |
101 | { CT_AGNUMBER, | |
102 | M(AGBLOCK)|M(AGINO)|M(BBOFF)|M(BLKOFF)|M(INOIDX)|M(INOOFF), | |
103 | agnumber_names }, | |
104 | { CT_BBOFF, M(AGBLOCK)|M(AGNUMBER)|M(DADDR)|M(FSBLOCK), bboff_names }, | |
105 | { CT_BLKOFF, M(AGBLOCK)|M(AGNUMBER)|M(FSBLOCK), blkoff_names }, | |
106 | { CT_BYTE, 0, byte_names }, | |
107 | { CT_DADDR, M(BBOFF), daddr_names }, | |
108 | { CT_FSBLOCK, M(BBOFF)|M(BLKOFF)|M(INOIDX), fsblock_names }, | |
109 | { CT_INO, M(INOOFF), ino_names }, | |
110 | { CT_INOIDX, M(AGBLOCK)|M(AGNUMBER)|M(FSBLOCK)|M(INOOFF), | |
111 | inoidx_names }, | |
112 | { CT_INOOFF, | |
113 | M(AGBLOCK)|M(AGINO)|M(AGNUMBER)|M(FSBLOCK)|M(INO)|M(INOIDX), | |
114 | inooff_names }, | |
115 | }; | |
116 | ||
117 | static const cmdinfo_t convert_cmd = | |
118 | { "convert", NULL, convert_f, 3, 9, 0, "type num [type num]... type", | |
119 | "convert from one address form to another", NULL }; | |
120 | ||
121 | static __uint64_t | |
122 | bytevalue(ctype_t ctype, cval_t *val) | |
123 | { | |
124 | switch (ctype) { | |
125 | case CT_AGBLOCK: | |
126 | return agblock_to_bytes(val->agblock); | |
127 | case CT_AGINO: | |
128 | return agino_to_bytes(val->agino); | |
129 | case CT_AGNUMBER: | |
130 | return agnumber_to_bytes(val->agnumber); | |
131 | case CT_BBOFF: | |
132 | return (__uint64_t)val->bboff; | |
133 | case CT_BLKOFF: | |
134 | return (__uint64_t)val->blkoff; | |
135 | case CT_BYTE: | |
136 | return val->byte; | |
137 | case CT_DADDR: | |
138 | return daddr_to_bytes(val->daddr); | |
139 | case CT_FSBLOCK: | |
140 | return fsblock_to_bytes(val->fsblock); | |
141 | case CT_INO: | |
142 | return ino_to_bytes(val->ino); | |
143 | case CT_INOIDX: | |
144 | return inoidx_to_bytes(val->inoidx); | |
145 | case CT_INOOFF: | |
146 | return (__uint64_t)val->inooff; | |
147 | case CT_NONE: | |
148 | case NCTS: | |
6bef826c | 149 | break; |
2bd0ea18 NS |
150 | } |
151 | /* NOTREACHED */ | |
152 | return 0; | |
153 | } | |
154 | ||
155 | static int | |
156 | convert_f(int argc, char **argv) | |
157 | { | |
158 | ctype_t c; | |
159 | int conmask; | |
9a35e0d3 | 160 | cval_t cvals[NCTS] = {}; |
2bd0ea18 NS |
161 | int i; |
162 | int mask; | |
163 | __uint64_t v; | |
164 | ctype_t wtype; | |
165 | ||
166 | /* move past the "convert" command */ | |
167 | argc--; | |
168 | argv++; | |
169 | ||
170 | if ((argc % 2) != 1) { | |
9ee7055c AM |
171 | dbprintf(_("bad argument count %d to convert, expected 3,5,7,9 " |
172 | "arguments\n"), argc); | |
2bd0ea18 NS |
173 | return 0; |
174 | } | |
175 | if ((wtype = lookupcty(argv[argc - 1])) == CT_NONE) { | |
9ee7055c | 176 | dbprintf(_("unknown conversion type %s\n"), argv[argc - 1]); |
2bd0ea18 NS |
177 | return 0; |
178 | } | |
179 | ||
180 | for (i = mask = conmask = 0; i < (argc - 1) / 2; i++) { | |
181 | c = lookupcty(argv[i * 2]); | |
182 | if (c == CT_NONE) { | |
9ee7055c | 183 | dbprintf(_("unknown conversion type %s\n"), argv[i * 2]); |
2bd0ea18 NS |
184 | return 0; |
185 | } | |
186 | if (c == wtype) { | |
9ee7055c | 187 | dbprintf(_("result type same as argument\n")); |
2bd0ea18 NS |
188 | return 0; |
189 | } | |
190 | if (conmask & (1 << c)) { | |
9ee7055c | 191 | dbprintf(_("conflicting conversion type %s\n"), |
2bd0ea18 NS |
192 | argv[i * 2]); |
193 | return 0; | |
194 | } | |
195 | if (!getvalue(argv[i * 2 + 1], c, &cvals[c])) | |
196 | return 0; | |
197 | mask |= 1 << c; | |
198 | conmask |= ~ctydescs[c].allowed; | |
199 | } | |
200 | if (cur_agno != NULLAGNUMBER && (conmask & M(AGNUMBER)) == 0) { | |
201 | cvals[CT_AGNUMBER].agnumber = cur_agno; | |
202 | mask |= M(AGNUMBER); | |
2bd0ea18 NS |
203 | } |
204 | v = 0; | |
205 | for (c = (ctype_t)0; c < NCTS; c++) { | |
206 | if (!(mask & (1 << c))) | |
207 | continue; | |
208 | v += bytevalue(c, &cvals[c]); | |
209 | } | |
210 | switch (wtype) { | |
211 | case CT_AGBLOCK: | |
56b2de80 | 212 | v = xfs_daddr_to_agbno(mp, v >> BBSHIFT); |
2bd0ea18 NS |
213 | break; |
214 | case CT_AGINO: | |
215 | v = (v >> mp->m_sb.sb_inodelog) % | |
216 | (mp->m_sb.sb_agblocks << mp->m_sb.sb_inopblog); | |
217 | break; | |
218 | case CT_AGNUMBER: | |
56b2de80 | 219 | v = xfs_daddr_to_agno(mp, v >> BBSHIFT); |
2bd0ea18 NS |
220 | break; |
221 | case CT_BBOFF: | |
222 | v &= BBMASK; | |
223 | break; | |
224 | case CT_BLKOFF: | |
225 | v &= mp->m_blockmask; | |
226 | break; | |
227 | case CT_BYTE: | |
228 | break; | |
229 | case CT_DADDR: | |
230 | v >>= BBSHIFT; | |
231 | break; | |
232 | case CT_FSBLOCK: | |
233 | v = XFS_DADDR_TO_FSB(mp, v >> BBSHIFT); | |
234 | break; | |
235 | case CT_INO: | |
56b2de80 | 236 | v = XFS_AGINO_TO_INO(mp, xfs_daddr_to_agno(mp, v >> BBSHIFT), |
2bd0ea18 NS |
237 | (v >> mp->m_sb.sb_inodelog) % |
238 | (mp->m_sb.sb_agblocks << mp->m_sb.sb_inopblog)); | |
239 | break; | |
240 | case CT_INOIDX: | |
241 | v = (v >> mp->m_sb.sb_inodelog) & (mp->m_sb.sb_inopblock - 1); | |
242 | break; | |
243 | case CT_INOOFF: | |
244 | v &= mp->m_sb.sb_inodesize - 1; | |
245 | break; | |
246 | case CT_NONE: | |
247 | case NCTS: | |
248 | /* NOTREACHED */ | |
6bef826c | 249 | break; |
2bd0ea18 NS |
250 | } |
251 | dbprintf("0x%llx (%llu)\n", v, v); | |
252 | return 0; | |
253 | } | |
254 | ||
255 | void | |
256 | convert_init(void) | |
257 | { | |
258 | add_command(&convert_cmd); | |
259 | } | |
260 | ||
261 | static int | |
262 | getvalue(char *s, ctype_t ctype, cval_t *val) | |
263 | { | |
264 | char *p; | |
265 | __uint64_t v; | |
266 | ||
267 | v = strtoull(s, &p, 0); | |
268 | if (*p != '\0') { | |
9ee7055c | 269 | dbprintf(_("%s is not a number\n"), s); |
2bd0ea18 NS |
270 | return 0; |
271 | } | |
272 | switch (ctype) { | |
273 | case CT_AGBLOCK: | |
274 | val->agblock = (xfs_agblock_t)v; | |
275 | break; | |
276 | case CT_AGINO: | |
277 | val->agino = (xfs_agino_t)v; | |
278 | break; | |
279 | case CT_AGNUMBER: | |
280 | val->agnumber = (xfs_agnumber_t)v; | |
281 | break; | |
282 | case CT_BBOFF: | |
283 | val->bboff = (int)v; | |
284 | break; | |
285 | case CT_BLKOFF: | |
286 | val->blkoff = (int)v; | |
287 | break; | |
288 | case CT_BYTE: | |
289 | val->byte = (__uint64_t)v; | |
290 | break; | |
291 | case CT_DADDR: | |
292 | val->daddr = (xfs_daddr_t)v; | |
293 | break; | |
294 | case CT_FSBLOCK: | |
295 | val->fsblock = (xfs_fsblock_t)v; | |
296 | break; | |
297 | case CT_INO: | |
298 | val->ino = (xfs_ino_t)v; | |
299 | break; | |
300 | case CT_INOIDX: | |
301 | val->inoidx = (int)v; | |
302 | break; | |
303 | case CT_INOOFF: | |
304 | val->inooff = (int)v; | |
305 | break; | |
306 | case CT_NONE: | |
307 | case NCTS: | |
308 | /* NOTREACHED */ | |
6bef826c | 309 | break; |
2bd0ea18 NS |
310 | } |
311 | return 1; | |
312 | } | |
313 | ||
314 | static ctype_t | |
315 | lookupcty(char *ctyname) | |
316 | { | |
317 | ctype_t cty; | |
318 | const char **name; | |
319 | ||
320 | for (cty = (ctype_t)0; cty < NCTS; cty++) { | |
321 | for (name = ctydescs[cty].names; *name; name++) { | |
322 | if (strcmp(ctyname, *name) == 0) | |
323 | return cty; | |
324 | } | |
325 | } | |
326 | return CT_NONE; | |
327 | } |