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-rw-r--r--sbin/geom/class/Makefile3
-rw-r--r--sbin/geom/class/cache/Makefile8
-rw-r--r--sbin/geom/class/cache/geom_cache.c241
3 files changed, 251 insertions, 1 deletions
diff --git a/sbin/geom/class/Makefile b/sbin/geom/class/Makefile
index 6ebdc66..9c78e16 100644
--- a/sbin/geom/class/Makefile
+++ b/sbin/geom/class/Makefile
@@ -2,7 +2,8 @@
.include <bsd.own.mk>
-SUBDIR= concat
+SUBDIR= cache
+SUBDIR+=concat
.if ${MK_OPENSSL} != "no"
SUBDIR+=eli
.endif
diff --git a/sbin/geom/class/cache/Makefile b/sbin/geom/class/cache/Makefile
new file mode 100644
index 0000000..6ca37e6
--- /dev/null
+++ b/sbin/geom/class/cache/Makefile
@@ -0,0 +1,8 @@
+# $FreeBSD$
+
+.PATH: ${.CURDIR}/../../misc
+
+CLASS= cache
+NO_MAN= # notyet
+
+.include <bsd.lib.mk>
diff --git a/sbin/geom/class/cache/geom_cache.c b/sbin/geom/class/cache/geom_cache.c
new file mode 100644
index 0000000..19a0bf5
--- /dev/null
+++ b/sbin/geom/class/cache/geom_cache.c
@@ -0,0 +1,241 @@
+/*-
+ * Copyright (c) 2006 Ruslan Ermilov <ru@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <strings.h>
+#include <libgeom.h>
+#include <geom/cache/g_cache.h>
+
+#include "core/geom.h"
+#include "misc/subr.h"
+
+
+uint32_t lib_version = G_LIB_VERSION;
+uint32_t version = G_CACHE_VERSION;
+
+static intmax_t blocksize_label = 65536;
+static intmax_t size_label = 100;
+static intmax_t blocksize_configure = 0;
+static intmax_t size_configure = 0;
+
+static void cache_main(struct gctl_req *req, unsigned flags);
+static void cache_clear(struct gctl_req *req);
+static void cache_dump(struct gctl_req *req);
+static void cache_label(struct gctl_req *req);
+
+struct g_command class_commands[] = {
+ { "clear", G_FLAG_VERBOSE, cache_main, G_NULL_OPTS,
+ "[-v] prov ..."
+ },
+ { "configure", G_FLAG_VERBOSE, NULL,
+ {
+ { 'b', "blocksize", &blocksize_configure, G_TYPE_NUMBER },
+ { 's', "size", &size_configure, G_TYPE_NUMBER },
+ G_OPT_SENTINEL
+ },
+ "[-v] [-b blocksize] [-s size] name"
+ },
+ { "create", G_FLAG_VERBOSE | G_FLAG_LOADKLD, NULL,
+ {
+ { 'b', "blocksize", &blocksize_label, G_TYPE_NUMBER },
+ { 's', "size", &size_label, G_TYPE_NUMBER },
+ G_OPT_SENTINEL
+ },
+ "[-v] [-b blocksize] [-s size] name prov"
+ },
+ { "destroy", G_FLAG_VERBOSE, NULL,
+ {
+ { 'f', "force", NULL, G_TYPE_NONE },
+ G_OPT_SENTINEL
+ },
+ "[-fv] name ..."
+ },
+ { "dump", 0, cache_main, G_NULL_OPTS,
+ "prov ..."
+ },
+ { "label", G_FLAG_VERBOSE | G_FLAG_LOADKLD, cache_main,
+ {
+ { 'b', "blocksize", &blocksize_label, G_TYPE_NUMBER },
+ { 's', "size", &size_label, G_TYPE_NUMBER },
+ G_OPT_SENTINEL
+ },
+ "[-v] [-b blocksize] [-s size] name prov"
+ },
+ { "reset", G_FLAG_VERBOSE, NULL, G_NULL_OPTS,
+ "[-v] name ..."
+ },
+ { "stop", G_FLAG_VERBOSE, NULL,
+ {
+ { 'f', "force", NULL, G_TYPE_NONE },
+ G_OPT_SENTINEL
+ },
+ "[-fv] name ..."
+ },
+ G_CMD_SENTINEL
+};
+
+static int verbose = 0;
+
+static void
+cache_main(struct gctl_req *req, unsigned flags)
+{
+ const char *name;
+
+ if ((flags & G_FLAG_VERBOSE) != 0)
+ verbose = 1;
+
+ name = gctl_get_ascii(req, "verb");
+ if (name == NULL) {
+ gctl_error(req, "No '%s' argument.", "verb");
+ return;
+ }
+ if (strcmp(name, "label") == 0)
+ cache_label(req);
+ else if (strcmp(name, "clear") == 0)
+ cache_clear(req);
+ else if (strcmp(name, "dump") == 0)
+ cache_dump(req);
+ else
+ gctl_error(req, "Unknown command: %s.", name);
+}
+
+static void
+cache_label(struct gctl_req *req)
+{
+ struct g_cache_metadata md;
+ u_char sector[512];
+ const char *name;
+ int error, nargs;
+ intmax_t val;
+
+ nargs = gctl_get_int(req, "nargs");
+ if (nargs != 2) {
+ gctl_error(req, "Invalid number of arguments.");
+ return;
+ }
+
+ strlcpy(md.md_magic, G_CACHE_MAGIC, sizeof(md.md_magic));
+ md.md_version = G_CACHE_VERSION;
+ name = gctl_get_ascii(req, "arg0");
+ strlcpy(md.md_name, name, sizeof(md.md_name));
+ val = gctl_get_intmax(req, "blocksize");
+ md.md_bsize = val;
+ val = gctl_get_intmax(req, "size");
+ md.md_size = val;
+
+ name = gctl_get_ascii(req, "arg1");
+ md.md_provsize = g_get_mediasize(name);
+ if (md.md_provsize == 0) {
+ fprintf(stderr, "Can't get mediasize of %s: %s.\n",
+ name, strerror(errno));
+ gctl_error(req, "Not fully done.");
+ return;
+ }
+ cache_metadata_encode(&md, sector);
+ error = g_metadata_store(name, sector, sizeof(sector));
+ if (error != 0) {
+ fprintf(stderr, "Can't store metadata on %s: %s.\n",
+ name, strerror(error));
+ gctl_error(req, "Not fully done.");
+ return;
+ }
+ if (verbose)
+ printf("Metadata value stored on %s.\n", name);
+}
+
+static void
+cache_clear(struct gctl_req *req)
+{
+ const char *name;
+ int error, i, nargs;
+
+ nargs = gctl_get_int(req, "nargs");
+ if (nargs < 1) {
+ gctl_error(req, "Too few arguments.");
+ return;
+ }
+
+ for (i = 0; i < nargs; i++) {
+ name = gctl_get_ascii(req, "arg%d", i);
+ error = g_metadata_clear(name, G_CACHE_MAGIC);
+ if (error != 0) {
+ fprintf(stderr, "Can't clear metadata on %s: %s.\n",
+ name, strerror(error));
+ gctl_error(req, "Not fully done.");
+ continue;
+ }
+ if (verbose)
+ printf("Metadata cleared on %s.\n", name);
+ }
+}
+
+static void
+cache_metadata_dump(const struct g_cache_metadata *md)
+{
+
+ printf(" Magic string: %s\n", md->md_magic);
+ printf(" Metadata version: %u\n", (u_int)md->md_version);
+ printf(" Device name: %s\n", md->md_name);
+ printf(" Block size: %u\n", (u_int)md->md_bsize);
+ printf(" Cache size: %u\n", (u_int)md->md_size);
+ printf(" Provider size: %ju\n", (uintmax_t)md->md_provsize);
+}
+
+static void
+cache_dump(struct gctl_req *req)
+{
+ struct g_cache_metadata md, tmpmd;
+ const char *name;
+ int error, i, nargs;
+
+ nargs = gctl_get_int(req, "nargs");
+ if (nargs < 1) {
+ gctl_error(req, "Too few arguments.");
+ return;
+ }
+
+ for (i = 0; i < nargs; i++) {
+ name = gctl_get_ascii(req, "arg%d", i);
+ error = g_metadata_read(name, (u_char *)&tmpmd, sizeof(tmpmd),
+ G_CACHE_MAGIC);
+ if (error != 0) {
+ fprintf(stderr, "Can't read metadata from %s: %s.\n",
+ name, strerror(error));
+ gctl_error(req, "Not fully done.");
+ continue;
+ }
+ cache_metadata_decode((u_char *)&tmpmd, &md);
+ printf("Metadata on %s:\n", name);
+ cache_metadata_dump(&md);
+ printf("\n");
+ }
+}
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