mirror of
git://sourceware.org/git/lvm2.git
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67905e0d59
to see what vg's you've got S: ----------------------------------------------------------------------
125 lines
2.8 KiB
C
125 lines
2.8 KiB
C
/*
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* Copyright (C) 2001 Sistina Software (UK) Limited.
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*
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* This file is released under the GPL.
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*/
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#include "log.h"
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#include "format1.h"
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#include "dbg_malloc.h"
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#include "pool.h"
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#include <stdio.h>
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static void _dump_pv(struct physical_volume *pv, FILE *fp)
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{
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fprintf(fp, "physical_volume {\n");
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fprintf(fp, "\tname = '%s'\n", pv->dev->name);
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fprintf(fp, "\tvg_name = '%s'\n", pv->vg_name);
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fprintf(fp, "\tsize = %llu\n", pv->size);
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fprintf(fp, "\tpe_size = %llu\n", pv->pe_size);
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fprintf(fp, "\tpe_start = %llu\n", pv->pe_start);
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fprintf(fp, "\tpe_count = %u\n", pv->pe_count);
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fprintf(fp, "\tpe_allocated = %u\n", pv->pe_allocated);
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fprintf(fp, "}\n\n");
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}
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static void _dump_lv(struct logical_volume *lv, FILE *fp)
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{
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int i;
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fprintf(fp, "logical_volume {\n");
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fprintf(fp, "\tname = '%s'\n", lv->name);
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fprintf(fp, "\tsize = %llu\n", lv->size);
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fprintf(fp, "\tle_count = %u\n", lv->le_count);
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fprintf(fp, "\tmap {\n");
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for (i = 0; i < lv->le_count; i++) {
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struct physical_volume *pv = lv->map[i].pv;
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fprintf(fp, "\t\tpv = '%s', ", pv ? pv->dev->name : "null ???");
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fprintf(fp, "\textent = %u\n", lv->map[i].pe);
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}
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fprintf(fp, "\t}\n}\n\n");
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}
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static void _dump_vg(struct volume_group *vg, FILE *fp)
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{
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struct list_head *tmp;
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fprintf(fp, "volume_group {\n");
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fprintf(fp, "\tname = '%s'\n", vg->name);
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fprintf(fp, "\textent_size = %llu\n", vg->extent_size);
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fprintf(fp, "\textent_count = %d\n", vg->extent_count);
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fprintf(fp, "\tfree_count = %d\n", vg->free_count);
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fprintf(fp, "\tmax_lv = %d\n", vg->max_lv);
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fprintf(fp, "\tmax_pv = %d\n", vg->max_pv);
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fprintf(fp, "\tpv_count = %d\n", vg->pv_count);
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fprintf(fp, "\tlv_count = %d\n", vg->lv_count);
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fprintf(fp, "}\n\n");
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list_for_each(tmp, &vg->pvs) {
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struct pv_list *pvl = list_entry(tmp, struct pv_list, list);
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_dump_pv(&pvl->pv, fp);
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}
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list_for_each(tmp, &vg->lvs) {
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struct lv_list *lvl = list_entry(tmp, struct lv_list, list);
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_dump_lv(&lvl->lv, fp);
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}
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}
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int main(int argc, char **argv)
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{
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struct io_space *ios;
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struct volume_group *vg;
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struct pool *mem;
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if (argc != 2) {
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fprintf(stderr, "usage: read_vg_t <vg_name>\n");
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exit(1);
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}
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init_log(stderr);
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init_debug(_LOG_INFO);
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if (!dev_cache_init()) {
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fprintf(stderr, "init of dev-cache failed\n");
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exit(1);
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}
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if (!dev_cache_add_dir("/dev/loop")) {
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fprintf(stderr, "couldn't add /dev to dir-cache\n");
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exit(1);
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}
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if (!(mem = pool_create(10 * 1024))) {
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fprintf(stderr, "couldn't create pool\n");
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exit(1);
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}
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ios = create_lvm1_format("/dev", mem, NULL);
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if (!ios) {
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fprintf(stderr, "failed to create io_space for format1\n");
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exit(1);
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}
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vg = ios->vg_read(ios, argv[1]);
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if (!vg) {
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fprintf(stderr, "couldn't read vg %s\n", argv[1]);
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exit(1);
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}
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_dump_vg(vg, stdout);
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ios->destroy(ios);
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pool_destroy(mem);
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dev_cache_exit();
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dump_memory();
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fin_log();
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return 0;
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}
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