1 files changed, 0 insertions, 366 deletions

diff --git a/libblkid/topology.c b/libblkid/topology.c
deleted file mode 100644
index 9d4e7bdf1..000000000
--- a/libblkid/topology.c
+++ /dev/null
@@ -1,366 +0,0 @@
-/*
- * topology - gathers information about device topology
- *
- * Copyright 2009 Red Hat, Inc.  All rights reserved.
- *
- * This file may be redistributed under the terms of the
- * GNU Lesser General Public License.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <stddef.h>
-
-#include "topology.h"
-
-/**
- * SECTION:topology
- * @title: Topology information
- * @short_description: block device topology information.
- *
- * The topology chain provides details about Linux block devices, for more
- * information see:
- *
- *      Linux kernel Documentation/ABI/testing/sysfs-block
- *
- * NAME=value (tags) interface is enabled by blkid_probe_enable_topology(),
- * and provides:
- *
- * @LOGICAL_SECTOR_SIZE: this is the smallest unit the storage device can
- *                       address. It is typically 512 bytes.
- *
- * @PHYSICAL_SECTOR_SIZE: this is the smallest unit a physical storage device
- *                        can write atomically. It is usually the same as the
- *                        logical sector size but may be bigger.
- *
- * @MINIMUM_IO_SIZE: minimum size which is the device's preferred unit of I/O.
- *                   For RAID arrays it is often the stripe chunk size.
- *
- * @OPTIMAL_IO_SIZE: usually the stripe width for RAID or zero. For RAID arrays
- *                   it is usually the stripe width or the internal track size.
- *
- * @ALIGNMENT_OFFSET: indicates how many bytes the beginning of the device is
- *                    offset from the disk's natural alignment.
- *
- * The NAME=value tags are not defined when the corresponding topology value
- * is zero. The MINIMUM_IO_SIZE should be always defined if kernel provides
- * topology information.
- *
- * Binary interface:
- *
- * blkid_probe_get_topology()
- *
- * blkid_topology_get_'VALUENAME'()
- */
-static int topology_probe(blkid_probe pr, struct blkid_chain *chn);
-static void topology_free(blkid_probe pr, void *data);
-static int topology_is_complete(blkid_probe pr);
-static int topology_set_logical_sector_size(blkid_probe pr);
-
-/*
- * Binary interface
- */
-struct blkid_struct_topology {
-	unsigned long	alignment_offset;
-	unsigned long	minimum_io_size;
-	unsigned long	optimal_io_size;
-	unsigned long	logical_sector_size;
-	unsigned long	physical_sector_size;
-};
-
-/*
- * Topology chain probing functions
- */
-static const struct blkid_idinfo *idinfos[] =
-{
-#ifdef __linux__
-	&ioctl_tp_idinfo,
-	&sysfs_tp_idinfo,
-	&md_tp_idinfo,
-	&dm_tp_idinfo,
-	&lvm_tp_idinfo,
-	&evms_tp_idinfo
-#endif
-};
-
-
-/*
- * Driver definition
- */
-const struct blkid_chaindrv topology_drv = {
-	.id           = BLKID_CHAIN_TOPLGY,
-	.name         = "topology",
-	.dflt_enabled = FALSE,
-	.idinfos      = idinfos,
-	.nidinfos     = ARRAY_SIZE(idinfos),
-	.probe        = topology_probe,
-	.safeprobe    = topology_probe,
-	.free_data    = topology_free
-};
-
-/**
- * blkid_probe_enable_topology:
- * @pr: probe
- * @enable: TRUE/FALSE
- *
- * Enables/disables the topology probing for non-binary interface.
- *
- * Returns: 0 on success, or -1 in case of error.
- */
-int blkid_probe_enable_topology(blkid_probe pr, int enable)
-{
-	if (!pr)
-		return -1;
-	pr->chains[BLKID_CHAIN_TOPLGY].enabled = enable;
-	return 0;
-}
-
-/**
- * blkid_probe_get_topology:
- * @pr: probe
- *
- * This is a binary interface for topology values. See also blkid_topology_*
- * functions.
- *
- * This function is independent on blkid_do_[safe,full]probe() and
- * blkid_probe_enable_topology() calls.
- *
- * WARNING: the returned object will be overwritten by the next
- *          blkid_probe_get_topology() call for the same @pr. If you want to
- *          use more blkid_topopogy objects in the same time you have to create
- *          more blkid_probe handlers (see blkid_new_probe()).
- *
- * Returns: blkid_topopogy, or NULL in case of error.
- */
-blkid_topology blkid_probe_get_topology(blkid_probe pr)
-{
-	return (blkid_topology) blkid_probe_get_binary_data(pr,
-			&pr->chains[BLKID_CHAIN_TOPLGY]);
-}
-
-/*
- * The blkid_do_probe() backend.
- */
-static int topology_probe(blkid_probe pr, struct blkid_chain *chn)
-{
-	size_t i;
-
-	if (!pr || chn->idx < -1)
-		return -1;
-
-	if (!S_ISBLK(pr->mode))
-		return -1;	/* nothing, works with block devices only */
-
-	if (chn->binary) {
-		DBG(DEBUG_LOWPROBE, printf("initialize topology binary data\n"));
-
-		if (chn->data)
-			/* reset binary data */
-			memset(chn->data, 0,
-					sizeof(struct blkid_struct_topology));
-		else {
-			chn->data = calloc(1,
-					sizeof(struct blkid_struct_topology));
-			if (!chn->data)
-				return -1;
-		}
-	}
-
-	blkid_probe_chain_reset_vals(pr, chn);
-
-	DBG(DEBUG_LOWPROBE,
-		printf("--> starting probing loop [TOPOLOGY idx=%d]\n",
-		chn->idx));
-
-	i = chn->idx < 0 ? 0 : chn->idx + 1U;
-
-	for ( ; i < ARRAY_SIZE(idinfos); i++) {
-		const struct blkid_idinfo *id = idinfos[i];
-
-		chn->idx = i;
-
-		if (id->probefunc) {
-			DBG(DEBUG_LOWPROBE, printf(
-				"%s: call probefunc()\n", id->name));
-			if (id->probefunc(pr, NULL) != 0)
-				continue;
-		}
-
-		if (!topology_is_complete(pr))
-			continue;
-
-		/* generic for all probing drivers */
-		topology_set_logical_sector_size(pr);
-
-		DBG(DEBUG_LOWPROBE,
-			printf("<-- leaving probing loop (type=%s) [TOPOLOGY idx=%d]\n",
-			id->name, chn->idx));
-		return 0;
-	}
-
-	DBG(DEBUG_LOWPROBE,
-		printf("<-- leaving probing loop (failed) [TOPOLOGY idx=%d]\n",
-		chn->idx));
-	return 1;
-}
-
-static void topology_free(blkid_probe pr __attribute__((__unused__)),
-			  void *data)
-{
-	free(data);
-}
-
-static int topology_set_value(blkid_probe pr, const char *name,
-				size_t structoff, unsigned long data)
-{
-	struct blkid_chain *chn = blkid_probe_get_chain(pr);
-
-	if (!chn)
-		return -1;
-	if (!data)
-		return 0;	/* ignore zeros */
-
-	if (chn->binary) {
-		memcpy(chn->data + structoff, &data, sizeof(data));
-		return 0;
-	}
-	return blkid_probe_sprintf_value(pr, name, "%lu", data);
-}
-
-
-/* the topology info is complete when we have at least "minimum_io_size" which
- * is provided by all blkid topology drivers */
-static int topology_is_complete(blkid_probe pr)
-{
-	struct blkid_chain *chn = blkid_probe_get_chain(pr);
-
-	if (!chn)
-		return FALSE;
-
-	if (chn->binary && chn->data) {
-		blkid_topology tp = (blkid_topology) chn->data;
-		if (tp->minimum_io_size)
-			return TRUE;
-	}
-
-	return __blkid_probe_lookup_value(pr, "MINIMUM_IO_SIZE") ? TRUE : FALSE;
-}
-
-int blkid_topology_set_alignment_offset(blkid_probe pr, int val)
-{
-	unsigned long xval;
-
-	/* Welcome to Hell. The kernel is able to return -1 as an
-	 * alignment_offset if no compatible sizes and alignments
-	 * exist for stacked devices.
-	 *
-	 * There is no way how libblkid caller can respond to the value -1, so
-	 * we will hide this corner case...
-	 *
-	 * (TODO: maybe we can export an extra boolean value 'misaligned' rather
-	 *  then complete hide this problem.)
-	 */
-	xval = val < 0 ? 0 : val;
-
-	return topology_set_value(pr,
-			"ALIGNMENT_OFFSET",
-			offsetof(struct blkid_struct_topology, alignment_offset),
-			xval);
-}
-
-int blkid_topology_set_minimum_io_size(blkid_probe pr, unsigned long val)
-{
-	return topology_set_value(pr,
-			"MINIMUM_IO_SIZE",
-			offsetof(struct blkid_struct_topology, minimum_io_size),
-			val);
-}
-
-int blkid_topology_set_optimal_io_size(blkid_probe pr, unsigned long val)
-{
-	return topology_set_value(pr,
-			"OPTIMAL_IO_SIZE",
-			offsetof(struct blkid_struct_topology, optimal_io_size),
-			val);
-}
-
-/* BLKSSZGET is provided on all systems since 2.3.3 -- so we don't have to
- * waste time with sysfs.
- */
-static int topology_set_logical_sector_size(blkid_probe pr)
-{
-	unsigned long val = blkid_probe_get_sectorsize(pr);
-
-	if (!val)
-		return -1;
-
-	return topology_set_value(pr,
-			"LOGICAL_SECTOR_SIZE",
-			offsetof(struct blkid_struct_topology, logical_sector_size),
-			val);
-}
-
-int blkid_topology_set_physical_sector_size(blkid_probe pr, unsigned long val)
-{
-	return topology_set_value(pr,
-			"PHYSICAL_SECTOR_SIZE",
-			offsetof(struct blkid_struct_topology, physical_sector_size),
-			val);
-}
-
-/**
- * blkid_topology_get_alignment_offset:
- * @tp: topology
- *
- * Returns: alignment offset in bytes or 0.
- */
-unsigned long blkid_topology_get_alignment_offset(blkid_topology tp)
-{
-	return tp->alignment_offset;
-}
-
-/**
- * blkid_topology_get_minimum_io_size:
- * @tp: topology
- *
- * Returns: minimum io size in bytes or 0.
- */
-unsigned long blkid_topology_get_minimum_io_size(blkid_topology tp)
-{
-	return tp->minimum_io_size;
-}
-
-/**
- * blkid_topology_get_optimal_io_size
- * @tp: topology
- *
- * Returns: optimal io size in bytes or 0.
- */
-unsigned long blkid_topology_get_optimal_io_size(blkid_topology tp)
-{
-	return tp->optimal_io_size;
-}
-
-/**
- * blkid_topology_get_logical_sector_size
- * @tp: topology
- *
- * Returns: logical sector size (BLKSSZGET ioctl) in bytes or 0.
- */
-unsigned long blkid_topology_get_logical_sector_size(blkid_topology tp)
-{
-	return tp->logical_sector_size;
-}
-
-/**
- * blkid_topology_get_physical_sector_size
- * @tp: topology
- *
- * Returns: logical sector size (BLKSSZGET ioctl) in bytes or 0.
- */
-unsigned long blkid_topology_get_physical_sector_size(blkid_topology tp)
-{
-	return tp->physical_sector_size;
-}
-