1 files changed, 145 insertions, 0 deletions
diff --git a/utils/nfsref/remove.c b/utils/nfsref/remove.c
new file mode 100644
index 0000000..1a4e371
--- /dev/null
+++ b/utils/nfsref/remove.c
@@ -0,0 +1,145 @@
+/**
+ * @file utils/nfsref/remove.c
+ * @brief Remove junction metadata from a local file system object
+ */
+
+/*
+ * Copyright 2011, 2018 Oracle.  All rights reserved.
+ *
+ * This file is part of nfs-utils.
+ *
+ * nfs-utils is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2.0 as
+ * published by the Free Software Foundation.
+ *
+ * nfs-utils 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 version 2.0 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2.0 along with nfs-utils.  If not, see:
+ *
+ *	http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
+ */
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <unistd.h>
+#include <errno.h>
+
+#include "junction.h"
+#include "xlog.h"
+#include "nfsref.h"
+
+/**
+ * Display help message for "remove" subcommand
+ *
+ * @param progname NUL-terminated C string containing name of program
+ * @return program exit status
+ */
+int
+nfsref_remove_help(const char *progname)
+{
+	fprintf(stderr, " \n");
+
+	fprintf(stderr, "Usage: %s [ -t type ] remove <junction path>\n\n",
+		progname);
+
+	fprintf(stderr, "Remove the junction at <junction path>.  For FedFS "
+			"junctions, FSL and FSN\n");
+	fprintf(stderr, "records are removed from the NSDB.\n");
+
+	return EXIT_SUCCESS;
+}
+
+/**
+ * Remove an NFS locations-style junction
+ *
+ * @param junct_path NUL-terminated C string containing pathname of junction
+ * @return program exit status
+ */
+static int
+nfsref_remove_nfs_basic(const char *junct_path)
+{
+	int status = EXIT_FAILURE;
+	FedFsStatus retval;
+
+	xlog(D_GENERAL, "%s: Removing FedFS junction from %s",
+		__func__, junct_path);
+
+	retval = nfs_delete_junction(junct_path);
+	switch (retval) {
+	case FEDFS_OK:
+		printf("Removed nfs-basic junction from %s\n", junct_path);
+		status = EXIT_SUCCESS;
+		break;
+	case FEDFS_ERR_NOTJUNCT:
+		xlog(L_ERROR, "%s is not an nfs-basic junction", junct_path);
+		break;
+	default:
+		xlog(L_ERROR, "Failed to delete %s: %s",
+			junct_path, nsdb_display_fedfsstatus(retval));
+	}
+
+	return status;
+}
+
+/**
+ * Remove any NFS junction information
+ *
+ * @param junct_path NUL-terminated C string containing pathname of junction
+ * @return program exit status
+ */
+static int
+nfsref_remove_unspecified(const char *junct_path)
+{
+	FedFsStatus retval;
+
+	xlog(D_GENERAL, "%s: Removing junction from %s",
+		__func__, junct_path);
+
+	retval = nfs_delete_junction(junct_path);
+	if (retval != FEDFS_OK) {
+		if (retval != FEDFS_ERR_NOTJUNCT)
+			goto out_err;
+	}
+
+	printf("Removed junction from %s\n", junct_path);
+	return EXIT_SUCCESS;
+
+out_err:
+	switch (retval) {
+	case FEDFS_ERR_NOTJUNCT:
+		xlog(L_ERROR, "No junction information found in %s", junct_path);
+		break;
+	default:
+		xlog(L_ERROR, "Failed to delete %s: %s",
+			junct_path, nsdb_display_fedfsstatus(retval));
+	}
+	return EXIT_FAILURE;
+}
+
+/**
+ * Remove an NFS junction
+ *
+ * @param type type of junction to add
+ * @param junct_path NUL-terminated C string containing pathname of junction
+ * @return program exit status
+ */
+int
+nfsref_remove(enum nfsref_type type, const char *junct_path)
+{
+	switch (type) {
+	case NFSREF_TYPE_UNSPECIFIED:
+		return nfsref_remove_unspecified(junct_path);
+	case NFSREF_TYPE_NFS_BASIC:
+		return nfsref_remove_nfs_basic(junct_path);
+	default:
+		xlog(L_ERROR, "Unrecognized junction type");
+	}
+	return EXIT_FAILURE;
+}