1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 
  27 /*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
  28 /*        All Rights Reserved   */
  29 
  30 /*
  31  * Copyright 2018 Nexenta Systems, Inc.
  32  */
  33 
  34 #ifndef _NFS_CMD_H
  35 #define _NFS_CMD_H
  36 
  37 #ifdef  __cplusplus
  38 extern "C" {
  39 #endif
  40 
  41 #include <sys/types.h>
  42 #include <sys/param.h>
  43 #include <sys/kiconv.h>
  44 
  45 #define KICONV_MAX_CODENAME_LEN 63 /* copied from sys/kiconv.h */
  46 
  47 #define NFSCMD_VERS_1   1
  48 #define NFSCMD_VERSION  NFSCMD_VERS_1
  49 
  50 typedef enum { NFSCMD_CHARMAP_LOOKUP, NFSCMD_ERROR } nfscmd_t;
  51 typedef enum { NFSCMD_ERR_SUCCESS, NFSCMD_ERR_BADCMD, NFSCMD_ERR_NOTFOUND,
  52     NFSCMD_ERR_FAIL, NFSCMD_ERR_DROP, NFSCMD_ERR_NOMEM } nfscmd_err_t;
  53 #define NFSCMD_ERR_RET  0x100000
  54 
  55 typedef struct nfscmd_arg {
  56         uint32_t        version;
  57         nfscmd_t        cmd;
  58         union {
  59                 struct {
  60                         char path[MAXPATHLEN];
  61                         struct sockaddr addr;
  62                 } charmap;
  63         } arg;
  64 } nfscmd_arg_t;
  65 
  66 typedef struct nfscmd_res {
  67         uint32_t        version;
  68         uint32_t        cmd;
  69         nfscmd_err_t    error;
  70         union {
  71                 struct {
  72                     char        codeset[KICONV_MAX_CODENAME_LEN + 1];
  73                     uint32_t    apply;
  74                 } charmap;
  75         } result;
  76 } nfscmd_res_t;
  77 
  78 #ifdef _KERNEL
  79 
  80 #define NFSCMD_CONV_INBOUND     1
  81 #define NFSCMD_CONV_OUTBOUND    0
  82 
  83 extern int nfscmd_send(nfscmd_arg_t *, nfscmd_res_t *);
  84 extern struct charset_cache *nfscmd_findmap(struct exportinfo *,
  85     struct sockaddr *);
  86 extern char *nfscmd_convname(struct sockaddr *, struct exportinfo *,
  87     char *, int, size_t);
  88 extern void nfscmd_init(void);
  89 extern void nfscmd_fini(void);
  90 
  91 #endif
  92 
  93 #ifdef  __cplusplus
  94 }
  95 #endif
  96 
  97 #endif  /* _NFS_CMD_H */