linux/fs/smb/server/smbacl.h

/* SPDX-License-Identifier: LGPL-2.1+ */
/*
 *   Copyright (c) International Business Machines  Corp., 2007
 *   Author(s): Steve French (sfrench@us.ibm.com)
 *   Modified by Namjae Jeon (linkinjeon@kernel.org)
 */

#ifndef _SMBACL_H
#define _SMBACL_H

#include "../common/smbacl.h"
#include <linux/fs.h>
#include <linux/namei.h>
#include <linux/posix_acl.h>
#include <linux/mnt_idmapping.h>

#include "mgmt/tree_connect.h"

/* Revision for ACLs */
#define SD_REVISION …

/* Control flags for Security Descriptor */
#define OWNER_DEFAULTED …
#define GROUP_DEFAULTED …
#define DACL_PRESENT …
#define DACL_DEFAULTED …
#define SACL_PRESENT …
#define SACL_DEFAULTED …
#define DACL_TRUSTED …
#define SERVER_SECURITY …
#define DACL_AUTO_INHERIT_REQ …
#define SACL_AUTO_INHERIT_REQ …
#define DACL_AUTO_INHERITED …
#define SACL_AUTO_INHERITED …
#define DACL_PROTECTED …
#define SACL_PROTECTED …
#define RM_CONTROL_VALID …
#define SELF_RELATIVE …

struct ksmbd_conn;

struct smb_fattr { … };

struct posix_ace_state { … };

struct posix_user_ace_state { … };

struct posix_ace_state_array { … };

/*
 * while processing the nfsv4 ace, this maintains the partial permissions
 * calculated so far:
 */

struct posix_acl_state { … };

int parse_sec_desc(struct mnt_idmap *idmap, struct smb_ntsd *pntsd,
		   int acl_len, struct smb_fattr *fattr);
int build_sec_desc(struct mnt_idmap *idmap, struct smb_ntsd *pntsd,
		   struct smb_ntsd *ppntsd, int ppntsd_size, int addition_info,
		   __u32 *secdesclen, struct smb_fattr *fattr);
int init_acl_state(struct posix_acl_state *state, int cnt);
void free_acl_state(struct posix_acl_state *state);
void posix_state_to_acl(struct posix_acl_state *state,
			struct posix_acl_entry *pace);
int compare_sids(const struct smb_sid *ctsid, const struct smb_sid *cwsid);
bool smb_inherit_flags(int flags, bool is_dir);
int smb_inherit_dacl(struct ksmbd_conn *conn, const struct path *path,
		     unsigned int uid, unsigned int gid);
int smb_check_perm_dacl(struct ksmbd_conn *conn, const struct path *path,
			__le32 *pdaccess, int uid);
int set_info_sec(struct ksmbd_conn *conn, struct ksmbd_tree_connect *tcon,
		 const struct path *path, struct smb_ntsd *pntsd, int ntsd_len,
		 bool type_check, bool get_write);
void id_to_sid(unsigned int cid, uint sidtype, struct smb_sid *ssid);
void ksmbd_init_domain(u32 *sub_auth);

static inline uid_t posix_acl_uid_translate(struct mnt_idmap *idmap,
					    struct posix_acl_entry *pace)
{ … }

static inline gid_t posix_acl_gid_translate(struct mnt_idmap *idmap,
					    struct posix_acl_entry *pace)
{ … }

#endif /* _SMBACL_H */