1 files changed, 204 insertions, 0 deletions
diff --git a/sys/contrib/openzfs/lib/libshare/libshare.c b/sys/contrib/openzfs/lib/libshare/libshare.c
new file mode 100644
index 000000000000..3695207e6fe7
--- /dev/null
+++ b/sys/contrib/openzfs/lib/libshare/libshare.c
@@ -0,0 +1,204 @@
+// SPDX-License-Identifier: CDDL-1.0
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or https://opensource.org/licenses/CDDL-1.0.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011 Gunnar Beutner
+ * Copyright (c) 2018, 2022 by Delphix. All rights reserved.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <string.h>
+#include <errno.h>
+#include <libintl.h>
+#include <sys/file.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <libzfs.h>
+#include <libshare.h>
+#include "libshare_impl.h"
+
+#define	init_share(zfsname, path, shareopts) \
+	{ \
+		.sa_zfsname = zfsname, \
+		.sa_mountpoint = path, \
+		.sa_shareopts = shareopts, \
+	}
+
+#define	VALIDATE_PROTOCOL(proto, ...) \
+	if ((proto) < 0 || (proto) >= SA_PROTOCOL_COUNT) \
+		return __VA_ARGS__
+
+const char *const sa_protocol_names[SA_PROTOCOL_COUNT] = {
+	[SA_PROTOCOL_NFS] = "nfs",
+	[SA_PROTOCOL_SMB] = "smb",
+};
+
+static const sa_fstype_t *fstypes[SA_PROTOCOL_COUNT] =
+	{&libshare_nfs_type, &libshare_smb_type};
+
+int
+sa_enable_share(const char *zfsname, const char *mountpoint,
+    const char *shareopts, enum sa_protocol protocol)
+{
+	VALIDATE_PROTOCOL(protocol, SA_INVALID_PROTOCOL);
+
+	const struct sa_share_impl args =
+	    init_share(zfsname, mountpoint, shareopts);
+	return (fstypes[protocol]->enable_share(&args));
+}
+
+int
+sa_disable_share(const char *mountpoint, enum sa_protocol protocol)
+{
+	VALIDATE_PROTOCOL(protocol, SA_INVALID_PROTOCOL);
+
+	const struct sa_share_impl args = init_share(NULL, mountpoint, NULL);
+	return (fstypes[protocol]->disable_share(&args));
+}
+
+boolean_t
+sa_is_shared(const char *mountpoint, enum sa_protocol protocol)
+{
+	VALIDATE_PROTOCOL(protocol, B_FALSE);
+
+	const struct sa_share_impl args = init_share(NULL, mountpoint, NULL);
+	return (fstypes[protocol]->is_shared(&args));
+}
+
+void
+sa_commit_shares(enum sa_protocol protocol)
+{
+	/* CSTYLED */
+	VALIDATE_PROTOCOL(protocol, );
+
+	fstypes[protocol]->commit_shares();
+}
+
+void
+sa_truncate_shares(enum sa_protocol protocol)
+{
+	/* CSTYLED */
+	VALIDATE_PROTOCOL(protocol, );
+
+	if (fstypes[protocol]->truncate_shares != NULL)
+		fstypes[protocol]->truncate_shares();
+}
+
+int
+sa_validate_shareopts(const char *options, enum sa_protocol protocol)
+{
+	VALIDATE_PROTOCOL(protocol, SA_INVALID_PROTOCOL);
+
+	return (fstypes[protocol]->validate_shareopts(options));
+}
+
+/*
+ * sa_errorstr(err)
+ *
+ * convert an error value to an error string
+ */
+const char *
+sa_errorstr(int err)
+{
+	static char errstr[32];
+
+	switch (err) {
+	case SA_OK:
+		return (dgettext(TEXT_DOMAIN, "ok"));
+	case SA_NO_SUCH_PATH:
+		return (dgettext(TEXT_DOMAIN, "path doesn't exist"));
+	case SA_NO_MEMORY:
+		return (dgettext(TEXT_DOMAIN, "no memory"));
+	case SA_DUPLICATE_NAME:
+		return (dgettext(TEXT_DOMAIN, "name in use"));
+	case SA_BAD_PATH:
+		return (dgettext(TEXT_DOMAIN, "bad path"));
+	case SA_NO_SUCH_GROUP:
+		return (dgettext(TEXT_DOMAIN, "no such group"));
+	case SA_CONFIG_ERR:
+		return (dgettext(TEXT_DOMAIN, "configuration error"));
+	case SA_SYSTEM_ERR:
+		return (dgettext(TEXT_DOMAIN, "system error"));
+	case SA_SYNTAX_ERR:
+		return (dgettext(TEXT_DOMAIN, "syntax error"));
+	case SA_NO_PERMISSION:
+		return (dgettext(TEXT_DOMAIN, "no permission"));
+	case SA_BUSY:
+		return (dgettext(TEXT_DOMAIN, "busy"));
+	case SA_NO_SUCH_PROP:
+		return (dgettext(TEXT_DOMAIN, "no such property"));
+	case SA_INVALID_NAME:
+		return (dgettext(TEXT_DOMAIN, "invalid name"));
+	case SA_INVALID_PROTOCOL:
+		return (dgettext(TEXT_DOMAIN, "invalid protocol"));
+	case SA_NOT_ALLOWED:
+		return (dgettext(TEXT_DOMAIN, "operation not allowed"));
+	case SA_BAD_VALUE:
+		return (dgettext(TEXT_DOMAIN, "bad property value"));
+	case SA_INVALID_SECURITY:
+		return (dgettext(TEXT_DOMAIN, "invalid security type"));
+	case SA_NO_SUCH_SECURITY:
+		return (dgettext(TEXT_DOMAIN, "security type not found"));
+	case SA_VALUE_CONFLICT:
+		return (dgettext(TEXT_DOMAIN, "property value conflict"));
+	case SA_NOT_IMPLEMENTED:
+		return (dgettext(TEXT_DOMAIN, "not implemented"));
+	case SA_INVALID_PATH:
+		return (dgettext(TEXT_DOMAIN, "invalid path"));
+	case SA_NOT_SUPPORTED:
+		return (dgettext(TEXT_DOMAIN, "operation not supported"));
+	case SA_PROP_SHARE_ONLY:
+		return (dgettext(TEXT_DOMAIN, "property not valid for group"));
+	case SA_NOT_SHARED:
+		return (dgettext(TEXT_DOMAIN, "not shared"));
+	case SA_NO_SUCH_RESOURCE:
+		return (dgettext(TEXT_DOMAIN, "no such resource"));
+	case SA_RESOURCE_REQUIRED:
+		return (dgettext(TEXT_DOMAIN, "resource name required"));
+	case SA_MULTIPLE_ERROR:
+		return (dgettext(TEXT_DOMAIN,
+		    "errors from multiple protocols"));
+	case SA_PATH_IS_SUBDIR:
+		return (dgettext(TEXT_DOMAIN, "path is a subpath of share"));
+	case SA_PATH_IS_PARENTDIR:
+		return (dgettext(TEXT_DOMAIN, "path is parent of a share"));
+	case SA_NO_SECTION:
+		return (dgettext(TEXT_DOMAIN, "protocol requires a section"));
+	case SA_NO_PROPERTIES:
+		return (dgettext(TEXT_DOMAIN, "properties not found"));
+	case SA_NO_SUCH_SECTION:
+		return (dgettext(TEXT_DOMAIN, "section not found"));
+	case SA_PASSWORD_ENC:
+		return (dgettext(TEXT_DOMAIN, "passwords must be encrypted"));
+	case SA_SHARE_EXISTS:
+		return (dgettext(TEXT_DOMAIN,
+		    "path or file is already shared"));
+	default:
+		(void) snprintf(errstr, sizeof (errstr),
+		    dgettext(TEXT_DOMAIN, "unknown %d"), err);
+		return (errstr);
+	}
+}