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85 lines
2.4 KiB
C
85 lines
2.4 KiB
C
/*
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* Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "base/memory/zalloc.h"
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#include "lib/misc/lib.h"
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#include "lib/commands/toolcontext.h"
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#include "lib/metadata/segtype.h"
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#include "lib/format_text/text_export.h"
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#include "lib/config/config.h"
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static int _unknown_text_import(struct lv_segment *seg, const struct dm_config_node *sn,
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struct dm_hash_table *pv_hash)
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{
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struct dm_config_node *new, *last = NULL, *head = NULL;
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const struct dm_config_node *current;
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log_verbose("importing unknown segment");
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for (current = sn; current != NULL; current = current->sib) {
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if (!strcmp(current->key, "type") || !strcmp(current->key, "start_extent") ||
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!strcmp(current->key, "tags") || !strcmp(current->key, "extent_count"))
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continue;
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new = dm_config_clone_node_with_mem(seg->lv->vg->vgmem, current, 0);
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if (!new)
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return_0;
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if (last)
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last->sib = new;
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if (!head)
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head = new;
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last = new;
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}
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seg->segtype_private = head;
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return 1;
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}
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static int _unknown_text_export(const struct lv_segment *seg, struct formatter *f)
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{
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struct dm_config_node *cn = seg->segtype_private;
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return out_config_node(f, cn);
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}
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static void _unknown_destroy(struct segment_type *segtype)
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{
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free((void *) segtype->name);
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free(segtype);
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}
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static struct segtype_handler _unknown_ops = {
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.text_import = _unknown_text_import,
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.text_export = _unknown_text_export,
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.destroy = _unknown_destroy,
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};
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struct segment_type *init_unknown_segtype(struct cmd_context *cmd, const char *name)
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{
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struct segment_type *segtype = zalloc(sizeof(*segtype));
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if (!segtype) {
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log_error("Failed to allocate memory for unknown segtype");
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return NULL;
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}
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segtype->ops = &_unknown_ops;
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if (!(segtype->name = strdup(name))) {
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log_error("Failed to allocate name.");
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free(segtype);
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return NULL;
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}
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segtype->flags = SEG_UNKNOWN | SEG_VIRTUAL | SEG_CANNOT_BE_ZEROED;
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log_very_verbose("Initialised segtype: %s", segtype->name);
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return segtype;
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}
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