Some new features.

1 files changed, 128 insertions, 0 deletions

diff --git a/tools/pvremove.c b/tools/pvremove.c
new file mode 100644
index 00000000..3410378f
--- /dev/null
+++ b/tools/pvremove.c
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2002 Sistina Software
+ *
+ * pvcreate is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * pvcreate is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LVM; see the file COPYING.  If not, write to
+ * the Free Software Foundation, 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include "tools.h"
+#include "defaults.h"
+
+const char _really_wipe[] =
+    "Really WIPE LABELS from physical volume \"%s\" of volume group \"%s\" [y/n]? ";
+
+/*
+ * Decide whether it is "safe" to wipe the labels on this device.
+ * 0 indicates we may not.
+ */
+static int pvremove_check(struct cmd_context *cmd, const char *name)
+{
+	struct physical_volume *pv;
+
+	/* is the partition type set correctly ? */
+	if ((arg_count(cmd, force_ARG) < 1) && !is_lvm_partition(name)) {
+		log_error("%s: Not LVM partition type: use -f to override",
+			  name);
+		return 0;
+	}
+
+	/* is there a pv here already */
+	if (!(pv = pv_read(cmd, name, NULL, NULL)))
+		return 1;
+
+	/* orphan ? */
+	if (!pv->vg_name[0])
+		return 1;
+
+	/* Allow partial & exported VGs to be destroyed. */
+	/* we must have -ff to overwrite a non orphan */
+	if (arg_count(cmd, force_ARG) < 2) {
+		log_error("Can't pvremove physical volume \"%s\" of "
+			  "volume group \"%s\" without -ff", name, pv->vg_name);
+		return 0;
+	}
+
+	/* prompt */
+	if (!arg_count(cmd, yes_ARG) &&
+	    yes_no_prompt(_really_wipe, name, pv->vg_name) == 'n') {
+		log_print("%s: physical volume label not removed", name);
+		return 0;
+	}
+
+	if (arg_count(cmd, force_ARG)) {
+		log_print("WARNING: Wiping physical volume label from "
+			  "%s%s%s%s", name,
+			  pv->vg_name[0] ? " of volume group \"" : "",
+			  pv->vg_name[0] ? pv->vg_name : "",
+			  pv->vg_name[0] ? "\"" : "");
+	}
+
+	return 1;
+}
+
+static void pvremove_single(struct cmd_context *cmd, const char *pv_name,
+			    void *handle)
+{
+	struct device *dev;
+
+	if (!lock_vol(cmd, "", LCK_VG_WRITE)) {
+		log_error("Can't get lock for orphan PVs");
+		return;
+	}
+
+	if (!pvremove_check(cmd, pv_name))
+		goto error;
+
+	if (!(dev = dev_cache_get(pv_name, cmd->filter))) {
+		log_error("%s: Couldn't find device.", pv_name);
+		goto error;
+	}
+
+	/* Wipe existing label(s) */
+	if (!label_remove(dev)) {
+		log_error("Failed to wipe existing label(s) on %s", pv_name);
+		goto error;
+	}
+
+	log_print("Labels on physical volume \"%s\" successfully wiped",
+		  pv_name);
+
+      error:
+	unlock_vg(cmd, "");
+	return;
+}
+
+int pvremove(struct cmd_context *cmd, int argc, char **argv)
+{
+	int i;
+
+	if (!argc) {
+		log_error("Please enter a physical volume path");
+		return EINVALID_CMD_LINE;
+	}
+
+	if (arg_count(cmd, yes_ARG) && !arg_count(cmd, force_ARG)) {
+		log_error("Option y can only be given with option f");
+		return EINVALID_CMD_LINE;
+	}
+
+	for (i = 0; i < argc; i++) {
+		pvremove_single(cmd, argv[i], NULL);
+		pool_empty(cmd->mem);
+	}
+
+	return 0;
+}