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9e300c84 | 1 | /* |
6606c3ae | 2 | * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved. |
35216ca6 | 3 | * Copyright (C) 2004-2012 Red Hat, Inc. All rights reserved. |
9e300c84 | 4 | * |
6606c3ae | 5 | * This file is part of LVM2. |
9e300c84 | 6 | * |
6606c3ae AK |
7 | * This copyrighted material is made available to anyone wishing to use, |
8 | * modify, copy, or redistribute it subject to the terms and conditions | |
be684599 | 9 | * of the GNU Lesser General Public License v.2.1. |
9e300c84 | 10 | * |
be684599 | 11 | * You should have received a copy of the GNU Lesser General Public License |
6606c3ae AK |
12 | * along with this program; if not, write to the Free Software Foundation, |
13 | * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
9e300c84 AK |
14 | */ |
15 | ||
16 | #include "tools.h" | |
17 | ||
dae08226 PR |
18 | #include "lvmetad.h" |
19 | #include "lvmcache.h" | |
20 | ||
9e300c84 AK |
21 | int pv_max_name_len = 0; |
22 | int vg_max_name_len = 0; | |
23 | ||
35216ca6 AK |
24 | static dev_t _parse_devt(const char *str) |
25 | { /* Oh. */ | |
26 | char *where = (char *) str; | |
27 | int major = strtol(str, &where, 10); | |
28 | int minor; | |
29 | ||
30 | if (where == str) | |
31 | return -1; | |
32 | ||
33 | if (*where != ':') | |
34 | return -1; | |
35 | ||
36 | str = ++where; | |
37 | minor = strtol(str, &where, 10); | |
38 | ||
39 | if (where == str) | |
40 | return -1; | |
41 | ||
42 | if (*where) | |
43 | return -1; | |
44 | ||
45 | return MKDEV(major, minor); | |
46 | } | |
47 | ||
48 | /* | |
49 | * Convert pv_name to struct device or to *devno. | |
50 | */ | |
51 | static struct device *_device_from_pv_name(const char *pv_name, dev_t *devno) | |
52 | { | |
53 | struct device *dev; | |
54 | ||
55 | if ((dev = dev_cache_get(pv_name, NULL))) | |
56 | return dev; | |
57 | ||
58 | if ((*devno = _parse_devt(pv_name)) == -1) { | |
59 | log_error("Unrecognised device name %s. " | |
60 | "(Use MAJOR:MINOR for new devices.)", pv_name); | |
61 | return NULL; | |
62 | } | |
63 | ||
64 | if ((dev = dev_cache_get_by_devt(*devno, NULL))) | |
65 | return dev; | |
66 | ||
67 | return NULL; | |
68 | } | |
69 | ||
8ef2b021 | 70 | static void _pvscan_display_single(struct cmd_context *cmd, |
72b2cb61 | 71 | struct physical_volume *pv, |
08f1ddea | 72 | void *handle __attribute__((unused))) |
5a52dca9 | 73 | { |
08f1ddea | 74 | char uuid[64] __attribute__((aligned(8))); |
72b2cb61 | 75 | unsigned vg_name_len = 0; |
5a52dca9 | 76 | |
5a52dca9 AK |
77 | char pv_tmp_name[NAME_LEN] = { 0, }; |
78 | char vg_tmp_name[NAME_LEN] = { 0, }; | |
79 | char vg_name_this[NAME_LEN] = { 0, }; | |
80 | ||
81 | /* short listing? */ | |
82 | if (arg_count(cmd, short_ARG) > 0) { | |
1b8de4cb | 83 | log_print("%s", pv_dev_name(pv)); |
5a52dca9 AK |
84 | return; |
85 | } | |
86 | ||
87 | if (arg_count(cmd, verbose_ARG) > 1) { | |
88 | /* FIXME As per pv_display! Drop through for now. */ | |
89 | /* pv_show(pv); */ | |
90 | ||
91 | /* FIXME - Moved to Volume Group structure */ | |
92 | /* log_print("System Id %s", pv->vg->system_id); */ | |
93 | ||
94 | /* log_print(" "); */ | |
95 | /* return; */ | |
96 | } | |
97 | ||
98 | memset(pv_tmp_name, 0, sizeof(pv_tmp_name)); | |
99 | ||
ff77bb1a | 100 | vg_name_len = strlen(pv_vg_name(pv)) + 1; |
5a52dca9 AK |
101 | |
102 | if (arg_count(cmd, uuid_ARG)) { | |
103 | if (!id_write_format(&pv->id, uuid, sizeof(uuid))) { | |
104 | stack; | |
105 | return; | |
106 | } | |
107 | ||
108 | sprintf(pv_tmp_name, "%-*s with UUID %s", | |
1b8de4cb | 109 | pv_max_name_len - 2, pv_dev_name(pv), uuid); |
5a52dca9 | 110 | } else { |
1b8de4cb | 111 | sprintf(pv_tmp_name, "%s", pv_dev_name(pv)); |
5a52dca9 AK |
112 | } |
113 | ||
9c1dbeb3 | 114 | if (is_orphan(pv)) { |
5a52dca9 AK |
115 | log_print("PV %-*s %-*s %s [%s]", |
116 | pv_max_name_len, pv_tmp_name, | |
117 | vg_max_name_len, " ", | |
118 | pv->fmt ? pv->fmt->name : " ", | |
ff77bb1a | 119 | display_size(cmd, pv_size(pv))); |
5a52dca9 AK |
120 | return; |
121 | } | |
122 | ||
ff77bb1a DW |
123 | if (pv_status(pv) & EXPORTED_VG) { |
124 | strncpy(vg_name_this, pv_vg_name(pv), vg_name_len); | |
5a52dca9 AK |
125 | log_print("PV %-*s is in exported VG %s " |
126 | "[%s / %s free]", | |
127 | pv_max_name_len, pv_tmp_name, | |
4c64ed4c | 128 | vg_name_this, |
ff77bb1a DW |
129 | display_size(cmd, (uint64_t) pv_pe_count(pv) * |
130 | pv_pe_size(pv)), | |
131 | display_size(cmd, (uint64_t) (pv_pe_count(pv) - | |
132 | pv_pe_alloc_count(pv)) | |
133 | * pv_pe_size(pv))); | |
5a52dca9 AK |
134 | return; |
135 | } | |
136 | ||
ff77bb1a | 137 | sprintf(vg_tmp_name, "%s", pv_vg_name(pv)); |
30bab85b AK |
138 | log_print("PV %-*s VG %-*s %s [%s / %s free]", pv_max_name_len, |
139 | pv_tmp_name, vg_max_name_len, vg_tmp_name, | |
140 | pv->fmt ? pv->fmt->name : " ", | |
67cdbd7e | 141 | display_size(cmd, (uint64_t) pv_pe_count(pv) * |
ff77bb1a | 142 | pv_pe_size(pv)), |
67cdbd7e | 143 | display_size(cmd, (uint64_t) (pv_pe_count(pv) - |
ff77bb1a DW |
144 | pv_pe_alloc_count(pv)) * |
145 | pv_pe_size(pv))); | |
5a52dca9 AK |
146 | } |
147 | ||
35216ca6 | 148 | static int _pvscan_lvmetad_all_devs(struct cmd_context *cmd) |
d06f64dd | 149 | { |
35216ca6 AK |
150 | struct dev_iter *iter; |
151 | struct device *dev; | |
152 | int r = 1; | |
d06f64dd | 153 | |
35216ca6 AK |
154 | if (!(iter = dev_iter_create(cmd->filter, 1))) { |
155 | log_error("dev_iter creation failed"); | |
156 | return 0; | |
d06f64dd AK |
157 | } |
158 | ||
35216ca6 AK |
159 | while ((dev = dev_iter_get(iter))) { |
160 | if (!pvscan_lvmetad_single(cmd, dev)) { | |
161 | r = 0; | |
162 | break; | |
163 | } | |
164 | ||
165 | if (sigint_caught()) | |
166 | break; | |
167 | } | |
168 | ||
169 | dev_iter_destroy(iter); | |
170 | ||
171 | return r; | |
172 | } | |
173 | ||
174 | static int _pvscan_lvmetad(struct cmd_context *cmd, int argc, char **argv) | |
175 | { | |
176 | int ret = ECMD_PROCESSED; | |
177 | struct device *dev; | |
178 | const char *pv_name; | |
179 | dev_t devno; | |
180 | ||
d06f64dd AK |
181 | if (!lock_vol(cmd, VG_GLOBAL, LCK_VG_READ)) { |
182 | log_error("Unable to obtain global lock."); | |
183 | return ECMD_FAILED; | |
184 | } | |
185 | ||
35216ca6 AK |
186 | if (!argc) { |
187 | if (!_pvscan_lvmetad_all_devs(cmd)) | |
188 | ret = ECMD_FAILED; | |
189 | goto out; | |
190 | } | |
191 | ||
d06f64dd | 192 | log_verbose("Using physical volume(s) on command line"); |
35216ca6 | 193 | |
d06f64dd | 194 | while (argc--) { |
35216ca6 AK |
195 | pv_name = *argv++; |
196 | dev = _device_from_pv_name(pv_name, &devno); | |
197 | ||
198 | if (!dev && devno != -1) { | |
199 | /* FIXME Filters? */ | |
200 | if (!lvmetad_pv_gone(devno, pv_name)) { | |
201 | ret = ECMD_FAILED; | |
202 | break; | |
203 | } | |
204 | ||
205 | log_print("Device %s not found. " | |
206 | "Cleared from lvmetad cache.", pv_name); | |
207 | continue; | |
208 | } | |
209 | ||
210 | if (!pvscan_lvmetad_single(cmd, dev)) { | |
d06f64dd AK |
211 | ret = ECMD_FAILED; |
212 | break; | |
213 | } | |
35216ca6 | 214 | |
d06f64dd AK |
215 | if (sigint_caught()) |
216 | break; | |
217 | } | |
218 | ||
35216ca6 | 219 | out: |
d06f64dd AK |
220 | unlock_vg(cmd, VG_GLOBAL); |
221 | ||
222 | return ret; | |
223 | } | |
224 | ||
dae08226 | 225 | int pvscan(struct cmd_context *cmd, int argc, char **argv) |
9e300c84 AK |
226 | { |
227 | int new_pvs_found = 0; | |
228 | int pvs_found = 0; | |
9e300c84 | 229 | |
2c44337b | 230 | struct dm_list *pvslist; |
b6c041d7 | 231 | struct pv_list *pvl; |
9e300c84 AK |
232 | struct physical_volume *pv; |
233 | ||
ee1f91bf AK |
234 | uint64_t size_total = 0; |
235 | uint64_t size_new = 0; | |
9e300c84 AK |
236 | |
237 | int len = 0; | |
238 | pv_max_name_len = 0; | |
239 | vg_max_name_len = 0; | |
240 | ||
d742cdf3 | 241 | if (arg_count(cmd, cache_ARG)) |
d06f64dd | 242 | return _pvscan_lvmetad(cmd, argc, argv); |
dae08226 | 243 | |
6fda126d | 244 | if (arg_count(cmd, novolumegroup_ARG) && arg_count(cmd, exported_ARG)) { |
b6c041d7 | 245 | log_error("Options -e and -n are incompatible"); |
ee1f91bf | 246 | return EINVALID_CMD_LINE; |
9e300c84 AK |
247 | } |
248 | ||
113f2a01 | 249 | if (arg_count(cmd, exported_ARG) || arg_count(cmd, novolumegroup_ARG)) |
e7ddf416 | 250 | log_warn("WARNING: only considering physical volumes %s", |
6fda126d | 251 | arg_count(cmd, exported_ARG) ? |
9e300c84 AK |
252 | "of exported volume group(s)" : "in no volume group"); |
253 | ||
e935d217 AK |
254 | if (!lock_vol(cmd, VG_GLOBAL, LCK_VG_WRITE)) { |
255 | log_error("Unable to obtain global lock."); | |
256 | return ECMD_FAILED; | |
257 | } | |
258 | ||
60274aba | 259 | persistent_filter_wipe(cmd->filter); |
6eb44b50 | 260 | lvmcache_destroy(cmd, 1); |
5a52dca9 | 261 | |
59a5361f AK |
262 | /* populate lvmcache */ |
263 | if (!lvmetad_vg_list_to_lvmcache(cmd)) | |
264 | stack; | |
265 | ||
d2393d23 | 266 | log_verbose("Walking through all physical volumes"); |
e935d217 AK |
267 | if (!(pvslist = get_pvs(cmd))) { |
268 | unlock_vg(cmd, VG_GLOBAL); | |
651ff9b3 | 269 | stack; |
ee1f91bf | 270 | return ECMD_FAILED; |
e935d217 | 271 | } |
9e300c84 AK |
272 | |
273 | /* eliminate exported/new if required */ | |
2c44337b | 274 | dm_list_iterate_items(pvl, pvslist) { |
cc282870 | 275 | pv = pvl->pv; |
9e300c84 | 276 | |
25b73380 | 277 | if ((arg_count(cmd, exported_ARG) |
59a5361f AK |
278 | && !(pv_status(pv) & EXPORTED_VG)) || |
279 | (arg_count(cmd, novolumegroup_ARG) && (!is_orphan(pv)))) { | |
2c44337b | 280 | dm_list_del(&pvl->list); |
35216ca6 | 281 | free_pv_fid(pv); |
9e300c84 AK |
282 | continue; |
283 | } | |
284 | ||
285 | /* Also check for MD use? */ | |
286 | /******* | |
287 | if (MAJOR(pv_create_kdev_t(pv[p]->pv_name)) != MD_MAJOR) { | |
258db3ad | 288 | log_warn |
9e300c84 AK |
289 | ("WARNING: physical volume \"%s\" belongs to a meta device", |
290 | pv[p]->pv_name); | |
291 | } | |
292 | if (MAJOR(pv[p]->pv_dev) != MD_MAJOR) | |
293 | continue; | |
294 | ********/ | |
295 | pvs_found++; | |
25d42d50 | 296 | |
9c1dbeb3 | 297 | if (is_orphan(pv)) { |
9e300c84 | 298 | new_pvs_found++; |
ff77bb1a DW |
299 | size_new += pv_size(pv); |
300 | size_total += pv_size(pv); | |
1b9fcf48 | 301 | } else |
1641fdf9 | 302 | size_total += (uint64_t) pv_pe_count(pv) * pv_pe_size(pv); |
9e300c84 AK |
303 | } |
304 | ||
305 | /* find maximum pv name length */ | |
306 | pv_max_name_len = vg_max_name_len = 0; | |
2c44337b | 307 | dm_list_iterate_items(pvl, pvslist) { |
f2b7349e | 308 | pv = pvl->pv; |
1b8de4cb | 309 | len = strlen(pv_dev_name(pv)); |
9e300c84 AK |
310 | if (pv_max_name_len < len) |
311 | pv_max_name_len = len; | |
ff77bb1a | 312 | len = strlen(pv_vg_name(pv)); |
9e300c84 AK |
313 | if (vg_max_name_len < len) |
314 | vg_max_name_len = len; | |
315 | } | |
316 | pv_max_name_len += 2; | |
317 | vg_max_name_len += 2; | |
318 | ||
84f48499 | 319 | dm_list_iterate_items(pvl, pvslist) { |
dae08226 PR |
320 | _pvscan_display_single(cmd, pvl->pv, NULL); |
321 | free_pv_fid(pvl->pv); | |
84f48499 | 322 | } |
9e300c84 AK |
323 | |
324 | if (!pvs_found) { | |
325 | log_print("No matching physical volumes found"); | |
e935d217 | 326 | unlock_vg(cmd, VG_GLOBAL); |
cfb7bfc7 | 327 | return ECMD_PROCESSED; |
9e300c84 AK |
328 | } |
329 | ||
b6c041d7 | 330 | log_print("Total: %d [%s] / in use: %d [%s] / in no VG: %d [%s]", |
9e300c84 | 331 | pvs_found, |
72b2cb61 | 332 | display_size(cmd, size_total), |
9e300c84 | 333 | pvs_found - new_pvs_found, |
72b2cb61 AK |
334 | display_size(cmd, (size_total - size_new)), |
335 | new_pvs_found, display_size(cmd, size_new)); | |
9e300c84 | 336 | |
e935d217 AK |
337 | unlock_vg(cmd, VG_GLOBAL); |
338 | ||
cfb7bfc7 | 339 | return ECMD_PROCESSED; |
9e300c84 | 340 | } |