/*
 * Copyright (c) 2000-2001 Boris Popov
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    This product includes software developed by Boris Popov.
 * 4. Neither the name of the author nor the names of any co-contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $Id: smb_lib.h,v 1.21.82.2 2005/06/02 00:55:39 lindak Exp $
 */

/*
 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
 * Copyright 2018 Nexenta Systems, Inc.  All rights reserved.
 */

#ifndef _NETSMB_SMB_LIB_H_
#define _NETSMB_SMB_LIB_H_

/*
 * Internal interface exported to our commands in:
 *      usr/src/cmd/fs.d/smbclnt/
 */

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/byteorder.h>

#include <netsmb/smbfs_api.h>
#include <netsmb/smb_dev.h>

extern const char smbutil_std_opts[];
#define STDPARAM_OPT    smbutil_std_opts

/*
 * bits to indicate the source of error
 */
#define SMB_ERRTYPE_MASK        0xf0000
#define SMB_SYS_ERROR           0x00000
#define SMB_RAP_ERROR           0x10000
#define SMB_NB_ERROR            0x20000

/*
 * Size of all LM/NTLM hashes (16 bytes).
 * The driver needs to know this, so it's
 * defined by smb_dev.h
 */
#define NTLM_HASH_SZ            SMBIOC_HASH_SZ
#define NTLM_CHAL_SZ            8       /* challenge size */

/*
 * This is what goes across the door call to the IOD
 * when asking for a new connection.
 */
struct smb_iod_ssn {
        struct smbioc_ossn iod_ossn;
        int             iod_authflags;  /* SMB_AT_x */
        uchar_t         iod_nthash[NTLM_HASH_SZ];
        uchar_t         iod_lmhash[NTLM_HASH_SZ];
        /* Kerberos cred. cache res. name? */
};
typedef struct smb_iod_ssn smb_iod_ssn_t;


/*
 * SMB work context. Used to store all values which are necessary
 * to establish connection to an SMB server.
 */
struct smb_ctx {
        int             ct_flags;       /* SMBCF_ */
        int             ct_dev_fd;      /* device handle */
        int             ct_door_fd;     /* to smbiod */
        int             ct_parsedlevel;
        int             ct_minlevel;
        int             ct_maxlevel;
        char            *ct_fullserver; /* orig. server name from cmd line */
        char            *ct_srvaddr_s;  /* hostname or IP address of server */
        struct addrinfo *ct_addrinfo;   /* IP addresses of the server */
        struct nb_ctx   *ct_nb;         /* NetBIOS info. */
        char            *ct_locname;    /* local (machine) name */
        int             ct_minauth;
        int             ct_shtype_req;  /* share type wanted */
        char            *ct_origshare;
        char            *ct_home;
        char            *ct_rpath;      /* remote file name */

        /* See ssp.c */
        void            *ct_ssp_ctx;
        smbioc_ssn_work_t ct_work;
        smb_iod_ssn_t   ct_iod_ssn;

        /* NTLM auth. stuff */
        uchar_t         ct_clnonce[NTLM_CHAL_SZ];
        uchar_t         ct_srv_chal[NTLM_CHAL_SZ];
        char            ct_password[SMBIOC_MAX_NAME];
};


/*
 * Short-hand for some of the substruct fields above
 */
#define ct_ssn          ct_iod_ssn.iod_ossn
#define ct_vopt         ct_iod_ssn.iod_ossn.ssn_vopt
#define ct_minver       ct_iod_ssn.iod_ossn.ssn_minver
#define ct_maxver       ct_iod_ssn.iod_ossn.ssn_maxver
#define ct_owner        ct_iod_ssn.iod_ossn.ssn_owner
#define ct_srvaddr      ct_iod_ssn.iod_ossn.ssn_srvaddr
#define ct_domain       ct_iod_ssn.iod_ossn.ssn_domain
#define ct_user         ct_iod_ssn.iod_ossn.ssn_user
#define ct_srvname      ct_iod_ssn.iod_ossn.ssn_srvname
#define ct_authflags    ct_iod_ssn.iod_authflags
#define ct_nthash       ct_iod_ssn.iod_nthash
#define ct_lmhash       ct_iod_ssn.iod_lmhash

#define ct_vcflags      ct_work.wk_vcflags
#define ct_ssnkey_len   ct_work.wk_u_ssnkey_len
#define ct_ssnkey_buf   ct_work.wk_u_ssnkey_buf.lp_ptr


/*
 * Bits in smb_ctx_t.ct_flags
 */
#define SMBCF_NOPWD                 0x0001 /* don't ask for a password */
#define SMBCF_SRIGHTS               0x0002 /* share access rights supplied */
#define SMBCF_LOCALE                0x0004 /* use current locale */
#define SMBCF_CMD_DOM               0x0010 /* CMD specified domain */
#define SMBCF_CMD_USR               0x0020 /* CMD specified user */
#define SMBCF_CMD_PW                0x0040 /* CMD specified password */
#define SMBCF_RESOLVED              0x8000 /* structure has been verified */
#define SMBCF_KCBAD             0x00080000 /* keychain password failed */
#define SMBCF_KCFOUND           0x00100000 /* password is from keychain */
#define SMBCF_BROWSEOK          0x00200000 /* browser dialogue may be used */
#define SMBCF_AUTHREQ           0x00400000 /* auth. dialog requested */
#define SMBCF_KCSAVE            0x00800000 /* add to keychain requested */
#define SMBCF_KCDOMAIN          0x01000000 /* use domain in KC lookup */


/*
 * Context management
 */

int  smb_ctx_init(struct smb_ctx *);
void smb_ctx_done(struct smb_ctx *);
int  smb_open_driver(void);
int  nsmb_ioctl(int, int, void *);
int  nsmb_close(int);

int  smb_ctx_gethandle(struct smb_ctx *);
int  smb_ctx_findvc(struct smb_ctx *);
int  smb_ctx_newvc(struct smb_ctx *);

/*
 * I/O daemon stuff
 */

#define SMBIOD_RUNDIR   "/var/run/smbiod"
#define SMBIOD_SVC_DOOR SMBIOD_RUNDIR "/.svc"
#define SMBIOD_USR_DOOR SMBIOD_RUNDIR "/%d"
#define SMBIOD_START    1

int  smb_iod_cl_newvc(smb_ctx_t *ctx);
char *smb_iod_door_path(void);
int smb_iod_open_door(int *);
int smb_iod_connect(struct smb_ctx *);
int smb_iod_work(struct smb_ctx *);

/*
 * Other stuff
 */

int  smb_open_rcfile(char *);
void smb_close_rcfile(void);

int smb_cf_minauth_from_str(char *);
int smb_cf_version_from_str(char *);

void smb_simplecrypt(char *dst, const char *src);
int  smb_simpledecrypt(char *dst, const char *src);

int     nls_setrecode(const char *, const char *);
int     nls_setlocale(const char *);
char    *nls_str_toext(char *, const char *);
char    *nls_str_toloc(char *, const char *);
void    *nls_mem_toext(void *, const void *, int);
void    *nls_mem_toloc(void *, const void *, int);
char    *nls_str_upper(char *, const char *);
char    *nls_str_lower(char *, const char *);

char *smb_getprogname();
#define __progname smb_getprogname()

#endif /* _NETSMB_SMB_LIB_H_ */