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82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2012 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/filters/filter.h"
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#include "lib/commands/toolcontext.h"
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#define MSG_SKIPPING "%s: Skipping: Partition table signature found"
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static int _passes_partitioned_filter(struct cmd_context *cmd, struct dev_filter *f, struct device *dev, const char *use_filter_name)
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{
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struct dev_types *dt = (struct dev_types *) f->private;
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int ret;
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if (cmd->filter_nodata_only)
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return 1;
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dev->filtered_flags &= ~DEV_FILTERED_PARTITIONED;
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ret = dev_is_partitioned(dt, dev);
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if (ret == -EAGAIN) {
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/* let pass, call again after scan */
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log_debug_devs("filter partitioned deferred %s", dev_name(dev));
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dev->flags |= DEV_FILTER_AFTER_SCAN;
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return 1;
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}
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if (ret) {
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if (dev->ext.src == DEV_EXT_NONE)
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log_debug_devs(MSG_SKIPPING, dev_name(dev));
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else
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log_debug_devs(MSG_SKIPPING " [%s:%p]", dev_name(dev),
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dev_ext_name(dev), dev->ext.handle);
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dev->filtered_flags |= DEV_FILTERED_PARTITIONED;
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return 0;
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}
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return 1;
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}
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static void _partitioned_filter_destroy(struct dev_filter *f)
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{
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if (f->use_count)
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log_error(INTERNAL_ERROR "Destroying partitioned filter while in use %u times.", f->use_count);
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free(f);
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}
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struct dev_filter *partitioned_filter_create(struct dev_types *dt)
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{
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struct dev_filter *f;
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if (!(f = zalloc(sizeof(struct dev_filter)))) {
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log_error("Partitioned filter allocation failed");
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return NULL;
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}
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f->passes_filter = _passes_partitioned_filter;
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f->destroy = _partitioned_filter_destroy;
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f->use_count = 0;
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f->private = dt;
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f->name = "partitioned";
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log_debug_devs("Partitioned filter initialised.");
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return f;
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}
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