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Diffstat (limited to 'fs/ksmbd/mgmt/share_config.h')
-rw-r--r--fs/ksmbd/mgmt/share_config.h81
1 files changed, 81 insertions, 0 deletions
diff --git a/fs/ksmbd/mgmt/share_config.h b/fs/ksmbd/mgmt/share_config.h
new file mode 100644
index 000000000000..953befc94e84
--- /dev/null
+++ b/fs/ksmbd/mgmt/share_config.h
@@ -0,0 +1,81 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2018 Samsung Electronics Co., Ltd.
+ */
+
+#ifndef __SHARE_CONFIG_MANAGEMENT_H__
+#define __SHARE_CONFIG_MANAGEMENT_H__
+
+#include <linux/workqueue.h>
+#include <linux/hashtable.h>
+#include <linux/path.h>
+
+struct ksmbd_share_config {
+ char *name;
+ char *path;
+
+ unsigned int path_sz;
+ unsigned int flags;
+ struct list_head veto_list;
+
+ struct path vfs_path;
+
+ atomic_t refcount;
+ struct hlist_node hlist;
+ unsigned short create_mask;
+ unsigned short directory_mask;
+ unsigned short force_create_mode;
+ unsigned short force_directory_mode;
+ unsigned short force_uid;
+ unsigned short force_gid;
+};
+
+#define KSMBD_SHARE_INVALID_UID ((__u16)-1)
+#define KSMBD_SHARE_INVALID_GID ((__u16)-1)
+
+static inline int share_config_create_mode(struct ksmbd_share_config *share,
+ umode_t posix_mode)
+{
+ if (!share->force_create_mode) {
+ if (!posix_mode)
+ return share->create_mask;
+ else
+ return posix_mode & share->create_mask;
+ }
+ return share->force_create_mode & share->create_mask;
+}
+
+static inline int share_config_directory_mode(struct ksmbd_share_config *share,
+ umode_t posix_mode)
+{
+ if (!share->force_directory_mode) {
+ if (!posix_mode)
+ return share->directory_mask;
+ else
+ return posix_mode & share->directory_mask;
+ }
+
+ return share->force_directory_mode & share->directory_mask;
+}
+
+static inline int test_share_config_flag(struct ksmbd_share_config *share,
+ int flag)
+{
+ return share->flags & flag;
+}
+
+void __ksmbd_share_config_put(struct ksmbd_share_config *share);
+
+static inline void ksmbd_share_config_put(struct ksmbd_share_config *share)
+{
+ if (!atomic_dec_and_test(&share->refcount))
+ return;
+ __ksmbd_share_config_put(share);
+}
+
+struct ksmbd_share_config *ksmbd_share_config_get(char *name);
+bool ksmbd_share_veto_filename(struct ksmbd_share_config *share,
+ const char *filename);
+void ksmbd_share_configs_cleanup(void);
+
+#endif /* __SHARE_CONFIG_MANAGEMENT_H__ */