/*
 * 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 http://www.opensolaris.org/os/licensing.
 * 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) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
 * Copyright 2020 Tintri by DDN, Inc. All rights reserved.
 * Copyright 2020-2023 RackTop Systems, Inc.
 */

#ifndef _LIBSMB_H
#define _LIBSMB_H

#ifdef  __cplusplus
extern "C" {
#endif

#include <sys/types.h>
#include <sys/inttypes.h>
#include <sys/list.h>
#include <sys/avl.h>
#include <arpa/inet.h>
#include <net/if.h>     /* LIFNAMSIZ */
#include <netdb.h>
#include <stdlib.h>
#include <libscf.h>
#include <libshare.h>
#include <uuid/uuid.h>
#include <synch.h>
#include <stdarg.h>

#include <smb/nterror.h>
#include <smb/ntstatus.h>
#include <smb/wintypes.h>

#include <smbsrv/string.h>
#include <smbsrv/smb_idmap.h>
#include <smbsrv/netbios.h>
#include <smbsrv/smb_share.h>
#include <smbsrv/smb_door.h>
#include <smbsrv/alloc.h>
#include <smbsrv/hash_table.h>
#include <smbsrv/msgbuf.h>
#include <smbsrv/smb_xdr.h>
#include <smbsrv/smbinfo.h>
#include <smbsrv/ntifs.h>

#define SMB_VARSMB_DIR "/var/smb"
#define SMB_VARRUN_DIR "/var/run/smb"
#define SMB_CCACHE_FILE "ccache"
#define SMB_CCACHE_PATH SMB_VARRUN_DIR "/" SMB_CCACHE_FILE


/* Max value length of all SMB properties */
#define MAX_VALUE_BUFLEN        512

#define SMBD_FMRI_PREFIX                "network/smb/server"
#define SMBD_DEFAULT_INSTANCE_FMRI      "svc:/network/smb/server:default"
#define SMBD_PG_NAME                    "smbd"
#define SMBD_PROTECTED_PG_NAME          "read"
#define SMBD_EXEC_PG_NAME               "exec"

#define SMBD_SMF_OK             0
#define SMBD_SMF_NO_MEMORY      1       /* no memory for data structures */
#define SMBD_SMF_SYSTEM_ERR     2       /* system error, use errno */
#define SMBD_SMF_NO_PERMISSION  3       /* no permission for operation */
#define SMBD_SMF_INVALID_ARG    4

#define SCH_STATE_UNINIT        0
#define SCH_STATE_INITIALIZING  1
#define SCH_STATE_INIT          2

typedef struct smb_scfhandle {
        scf_handle_t            *scf_handle;
        int                     scf_state;
        scf_service_t           *scf_service;
        scf_scope_t             *scf_scope;
        scf_transaction_t       *scf_trans;
        scf_transaction_entry_t *scf_entry;
        scf_propertygroup_t     *scf_pg;
        scf_instance_t          *scf_instance;
        scf_iter_t              *scf_inst_iter;
        scf_iter_t              *scf_pg_iter;
} smb_scfhandle_t;

/*
 * CIFS Configuration Management
 */
typedef enum {
        SMB_CI_VERSION = 0,
        SMB_CI_OPLOCK_ENABLE,

        SMB_CI_AUTOHOME_MAP,

        SMB_CI_DOMAIN_SID,
        SMB_CI_DOMAIN_MEMB,
        SMB_CI_DOMAIN_NAME,
        SMB_CI_DOMAIN_FQDN,
        SMB_CI_DOMAIN_FOREST,
        SMB_CI_DOMAIN_GUID,
        SMB_CI_DOMAIN_SRV,

        SMB_CI_WINS_SRV1,
        SMB_CI_WINS_SRV2,
        SMB_CI_WINS_EXCL,

        SMB_CI_MAX_WORKERS,
        SMB_CI_MAX_CONNECTIONS,
        SMB_CI_KEEPALIVE,
        SMB_CI_RESTRICT_ANON,

        SMB_CI_SIGNING_ENABLE,
        SMB_CI_SIGNING_REQD,

        SMB_CI_SYNC_ENABLE,

        SMB_CI_SECURITY,
        SMB_CI_NETBIOS_ENABLE,
        SMB_CI_NBSCOPE,
        SMB_CI_SYS_CMNT,
        SMB_CI_LM_LEVEL,

        SMB_CI_ADS_SITE,

        SMB_CI_DYNDNS_ENABLE,

        SMB_CI_MACHINE_PASSWD,
        SMB_CI_MACHINE_UUID,
        SMB_CI_KPASSWD_SRV,
        SMB_CI_KPASSWD_DOMAIN,
        SMB_CI_KPASSWD_SEQNUM,
        SMB_CI_NETLOGON_SEQNUM,
        SMB_CI_IPV6_ENABLE,
        SMB_CI_PRINT_ENABLE,
        SMB_CI_MAP,
        SMB_CI_UNMAP,
        SMB_CI_DISPOSITION,
        SMB_CI_DFS_STDROOT_NUM,
        SMB_CI_TRAVERSE_MOUNTS,
        SMB_CI_SMB2_ENABLE_OLD, /* obsolete */
        SMB_CI_INITIAL_CREDITS,
        SMB_CI_MAXIMUM_CREDITS,
        SMB_CI_MAX_PROTOCOL,
        SMB_CI_ENCRYPT,
        SMB_CI_MIN_PROTOCOL,
        SMB_CI_BYPASS_TRAVERSE_CHECKING,
        SMB_CI_ENCRYPT_CIPHERS,
        SMB_CI_NETLOGON_FLAGS,
        SMB_CI_SHORT_NAMES,
        SMB_CI_MAX_OPENS,
        SMB_CI_SIGN_ALGS,

        SMB_CI_MAX
} smb_cfg_id_t;

/* SMF helper functions */
extern smb_scfhandle_t *smb_smf_scf_init(char *);
extern void smb_smf_scf_fini(smb_scfhandle_t *);
extern int smb_smf_start_transaction(smb_scfhandle_t *);
extern int smb_smf_end_transaction(smb_scfhandle_t *);
extern int smb_smf_set_string_property(smb_scfhandle_t *, char *, char *);
extern int smb_smf_get_string_property(smb_scfhandle_t *, char *,
    char *, size_t);
extern int smb_smf_set_integer_property(smb_scfhandle_t *, char *, int64_t);
extern int smb_smf_get_integer_property(smb_scfhandle_t *, char *, int64_t *);
extern int smb_smf_set_boolean_property(smb_scfhandle_t *, char *, uint8_t);
extern int smb_smf_get_boolean_property(smb_scfhandle_t *, char *, uint8_t *);
extern int smb_smf_set_opaque_property(smb_scfhandle_t *, char *,
    void *, size_t);
extern int smb_smf_get_opaque_property(smb_scfhandle_t *, char *,
    void *, size_t);
extern int smb_smf_create_service_pgroup(smb_scfhandle_t *, char *);
extern int smb_smf_delete_property(smb_scfhandle_t *, char *);
extern int smb_smf_restart_service(void);
extern int smb_smf_maintenance_mode(void);

/* ZFS interface */
struct libzfs_handle;
int smb_getdataset(struct libzfs_handle *, const char *, char *, size_t);

/* Configuration management functions  */
extern int smb_config_get(smb_cfg_id_t, char *, int);
extern char *smb_config_getname(smb_cfg_id_t);
extern int smb_config_getstr(smb_cfg_id_t, char *, int);
extern int smb_config_getnum(smb_cfg_id_t, int64_t *);
extern boolean_t smb_config_getbool(smb_cfg_id_t);

extern int smb_config_set(smb_cfg_id_t, char *);
extern int smb_config_setstr(smb_cfg_id_t, char *);
extern int smb_config_setnum(smb_cfg_id_t, int64_t);
extern int smb_config_setbool(smb_cfg_id_t, boolean_t);

extern boolean_t smb_config_get_ads_enable(void);
extern int smb_config_get_debug(void);
extern uint8_t smb_config_get_fg_flag(void);
extern char *smb_config_get_localsid(void);
extern int smb_config_get_localuuid(uuid_t);
extern int smb_config_secmode_fromstr(char *);
extern char *smb_config_secmode_tostr(int);
extern int smb_config_get_secmode(void);
extern int smb_config_set_secmode(int);
extern int smb_config_set_idmap_domain(char *);
extern int smb_config_refresh_idmap(void);
extern int smb_config_getip(smb_cfg_id_t, smb_inaddr_t *);
extern void smb_config_get_version(smb_version_t *);
uint32_t smb_config_get_execinfo(char *, char *, size_t);
extern void smb_config_get_negtok(uchar_t *, uint32_t *);

extern uint32_t smb_config_get_max_protocol(void);
extern uint32_t smb_config_get_min_protocol(void);
extern uint32_t smb_convert_version_str(const char *);
extern void smb_config_upgrade(void);
extern uint32_t smb_config_get_encrypt_ciphers(void);
extern int smb_convert_encrypt_ciphers(const char *);
extern uint32_t smb_config_get_signing_algs(void);
extern int smb_convert_signing_algs(const char *);

extern smb_cfg_val_t smb_config_get_require(smb_cfg_id_t);

extern void smb_load_kconfig(smb_kmod_cfg_t *kcfg);
extern uint32_t smb_crc_gen(uint8_t *, size_t);

extern boolean_t smb_match_netlogon_seqnum(void);
extern int smb_setdomainprops(char *, char *, char *);
extern void smb_update_netlogon_seqnum(void);

/* maximum password length on Windows 2000 and above */
#define SMB_PASSWD_MAXLEN       127
#define SMB_USERNAME_MAXLEN     40

/* See also: smb_joininfo_xdr() */
typedef struct smb_joininfo {
        uint32_t mode;
        char domain_name[MAXHOSTNAMELEN];
        char container_name[MAXHOSTNAMELEN];
        char domain_username[SMB_USERNAME_MAXLEN + 1];
        char domain_passwd[SMB_PASSWD_MAXLEN + 1];
} smb_joininfo_t;

/* See also: smb_joinres_xdr() */
typedef struct smb_joinres {
        uint32_t status;
        int join_err;
        char dc_name[MAXHOSTNAMELEN];
} smb_joinres_t;

/* APIs to communicate with SMB daemon via door calls */
int smb_join(smb_joininfo_t *, smb_joinres_t *info);
bool_t smb_joininfo_xdr(XDR *, smb_joininfo_t *);
bool_t smb_joinres_xdr(XDR *, smb_joinres_t *);
boolean_t smb_find_ads_server(char *, char *, int);
int smb_notify_dc_changed(void);

extern void smb_config_getdomaininfo(char *, char *, char *, char *, char *);
extern void smb_config_setdomaininfo(char *, char *, char *, char *, char *);
extern uint32_t smb_get_dcinfo(char *, uint32_t, smb_inaddr_t *);

/*
 * buffer context structure. This is used to keep track of the buffer
 * context.
 *
 * basep:  points to the beginning of the buffer
 * curp:   points to the current offset
 * endp:   points to the limit of the buffer
 */
typedef struct {
        unsigned char *basep;
        unsigned char *curp;
        unsigned char *endp;
} smb_ctxbuf_t;

extern int smb_ctxbuf_init(smb_ctxbuf_t *ctx, unsigned char *buf,
    size_t buflen);
extern int smb_ctxbuf_len(smb_ctxbuf_t *ctx);
extern int smb_ctxbuf_printf(smb_ctxbuf_t *ctx, const char *fmt, ...);

void smb_idmap_check(const char *, idmap_stat);

/* Miscellaneous functions */
extern void hexdump(unsigned char *, int);
extern size_t bintohex(const char *, size_t, char *, size_t);
extern size_t hextobin(const char *, size_t, char *, size_t);
extern char *strstrip(char *, const char *);
extern char *strtrim(char *, const char *);
extern char *trim_whitespace(char *);
extern void randomize(char *, unsigned);
extern void rand_hash(unsigned char *, size_t, unsigned char *, size_t);

extern int smb_getdomainname(char *, size_t);
extern int smb_getfqdomainname(char *, size_t);

typedef enum smb_caseconv {
        SMB_CASE_PRESERVE = 0,
        SMB_CASE_UPPER,
        SMB_CASE_LOWER
} smb_caseconv_t;

extern int smb_gethostname(char *, size_t, smb_caseconv_t);
extern int smb_getfqhostname(char *, size_t);
extern int smb_getnetbiosname(char *, size_t);
extern struct hostent *smb_gethostbyname(const char *, int *);
extern struct hostent *smb_gethostbyaddr(const char *, int, int, int *);

#define SMB_SAMACCT_MAXLEN      (NETBIOS_NAME_SZ + 1)
extern int smb_getsamaccount(char *, size_t);

extern int smb_get_nameservers(smb_inaddr_t *, int);
extern void smb_tonetbiosname(char *, char *, char);

extern int smb_chk_hostaccess(smb_inaddr_t *, char *);

extern int smb_getnameinfo(smb_inaddr_t *, char *, int, int);

extern uint32_t smb_get_netlogon_flags(void);

void smb_trace(const char *s);
void smb_tracef(const char *fmt, ...);

const char *xlate_nt_status(unsigned int);

void libsmb_redirect_syslog(__FILE_TAG *fp, int priority);

/*
 * Authentication
 */

#define SMBAUTH_LM_MAGIC_STR    "KGS!@#$%"

#define SMBAUTH_HASH_SZ         16      /* also LM/NTLM/NTLMv2 Hash size */
#define SMBAUTH_LM_RESP_SZ      24      /* also NTLM Response size */
#define SMBAUTH_LM_PWD_SZ       14      /* LM password size */
#define SMBAUTH_CHAL_SZ          8      /* both LMv2 and NTLMv2 */
#define SMBAUTH_SESSION_KEY_SZ  SMBAUTH_HASH_SZ
#define SMBAUTH_HEXHASH_SZ      (SMBAUTH_HASH_SZ * 2)

#define SMBAUTH_RETRY           2
#define SMBAUTH_FAILURE         1
#define SMBAUTH_SUCCESS         0
#define MD_DIGEST_LEN           16

/*
 * Name Types
 *
 * The list of names near the end of the data blob (i.e. the ndb_names
 * field of the smb_auth_data_blob_t data structure) can be classify into
 * the following types:
 *
 * 0x0000 Indicates the end of the list.
 * 0x0001 The name is a NetBIOS machine name (e.g. server name)
 * 0x0002 The name is an NT Domain NetBIOS name.
 * 0x0003 The name is the server's DNS hostname.
 * 0x0004 The name is a W2K Domain name (a DNS name).
 */
#define SMBAUTH_NAME_TYPE_LIST_END              0x0000
#define SMBAUTH_NAME_TYPE_SERVER_NETBIOS        0x0001
#define SMBAUTH_NAME_TYPE_DOMAIN_NETBIOS        0x0002
#define SMBAUTH_NAME_TYPE_SERVER_DNS            0x0003
#define SMBAUTH_NAME_TYPE_DOMAIN_DNS            0x0004

/*
 * smb_auth_name_entry_t
 *
 * Each name entry in the data blob consists of the following 3 fields:
 *
 * nne_type - name type
 * nne_len  - the length of the name
 * nne_name - the name, in uppercase UCS-2LE Unicode format
 */
typedef struct smb_auth_name_entry {
        unsigned short nne_type;
        unsigned short nne_len;
        smb_wchar_t nne_name[SMB_PI_MAX_DOMAIN * 2];
} smb_auth_name_entry_t;

/*
 * smb_auth_data_blob
 *
 * The format of this NTLMv2 data blob structure is as follow:
 *
 *      - Blob Signature 0x01010000 (4 bytes)
 * - Reserved (0x00000000) (4 bytes)
 * - Timestamp Little-endian, 64-bit signed value representing
 *   the number of tenths of a microsecond since January 1, 1601.
 *   (8 bytes)
 * - Client Challenge (8 bytes)
 * - Unknown1 (4 bytes)
 * - List of Target Information (variable length)
 * - Unknown2 (4 bytes)
 */
typedef struct smb_auth_data_blob {
        unsigned char ndb_signature[4];
        unsigned char ndb_reserved[4];
        uint64_t ndb_timestamp;
        unsigned char ndb_clnt_challenge[SMBAUTH_CHAL_SZ];
        unsigned char ndb_unknown[4];
        smb_auth_name_entry_t ndb_names[2];
        unsigned char ndb_unknown2[4];
} smb_auth_data_blob_t;

#define SMBAUTH_BLOB_MAXLEN (sizeof (smb_auth_data_blob_t))
#define SMBAUTH_CI_MAXLEN   SMBAUTH_LM_RESP_SZ
#define SMBAUTH_CS_MAXLEN   (SMBAUTH_BLOB_MAXLEN + SMBAUTH_HASH_SZ)

/*
 * smb_auth_info_t
 *
 * The structure contains all the authentication information
 * needed for the preparaton of the SMBSessionSetupAndx request
 * and the user session key.
 *
 * hash      - NTLM hash
 * hash_v2   - NTLMv2 hash
 * ci_len    - the length of the case-insensitive password
 * ci        - case-insensitive password
 *             (If NTLMv2 authentication mechanism is used, it
 *              represents the LMv2 response. Otherwise, it
 *              is empty.)
 * cs_len    - the length of the case-sensitive password
 * cs        - case-sensitive password
 *             (If NTLMv2 authentication mechanism is used, it
 *              represents the NTLMv2 response. Otherwise, it
 *              represents the NTLM response.)
 * data_blob - NTLMv2 data blob
 */
typedef struct smb_auth_info {
        unsigned char hash[SMBAUTH_HASH_SZ];
        unsigned char hash_v2[SMBAUTH_HASH_SZ];
        unsigned short ci_len;
        unsigned char ci[SMBAUTH_CI_MAXLEN];
        unsigned short cs_len;
        unsigned char cs[SMBAUTH_CS_MAXLEN];
        int lmcompatibility_lvl;
        smb_auth_data_blob_t data_blob;
} smb_auth_info_t;

/*
 * SMB password management
 */

#define SMB_PWF_LM      0x01    /* LM hash is present */
#define SMB_PWF_NT      0x02    /* NT hash is present */
#define SMB_PWF_DISABLE 0x04    /* Account is disabled */

typedef struct smb_passwd {
        uid_t           pw_uid;
        uint32_t        pw_flags;
        char            pw_name[SMB_USERNAME_MAXLEN];
        uint8_t         pw_lmhash[SMBAUTH_HASH_SZ];
        uint8_t         pw_nthash[SMBAUTH_HASH_SZ];
} smb_passwd_t;

/*
 * Control flags passed to smb_pwd_setcntl
 */
#define SMB_PWC_DISABLE 0x01
#define SMB_PWC_ENABLE  0x02
#define SMB_PWC_NOLM    0x04
#define SMB_PWC_DELETE  0x08

#define SMB_PWE_SUCCESS         0
#define SMB_PWE_USER_UNKNOWN    1
#define SMB_PWE_USER_DISABLE    2
#define SMB_PWE_CLOSE_FAILED    3
#define SMB_PWE_OPEN_FAILED     4
#define SMB_PWE_WRITE_FAILED    6
#define SMB_PWE_UPDATE_FAILED   7
#define SMB_PWE_STAT_FAILED     8
#define SMB_PWE_BUSY            9
#define SMB_PWE_DENIED          10
#define SMB_PWE_SYSTEM_ERROR    11
#define SMB_PWE_INVALID_PARAM   12
#define SMB_PWE_NO_MEMORY       13
#define SMB_PWE_MAX             14

typedef struct smb_pwditer {
        void *spi_next;
} smb_pwditer_t;

typedef struct smb_luser {
        char *su_name;
        char *su_fullname;
        char *su_desc;
        uint32_t su_rid;
        uint32_t su_ctrl;
} smb_luser_t;

extern void smb_pwd_init(boolean_t);
extern void smb_pwd_fini(void);
extern smb_passwd_t *smb_pwd_getpwnam(const char *, smb_passwd_t *);
extern smb_passwd_t *smb_pwd_getpwuid(uid_t, smb_passwd_t *);
extern int smb_pwd_setpasswd(const char *, const char *);
extern int smb_pwd_setcntl(const char *, int);

extern int smb_pwd_iteropen(smb_pwditer_t *);
extern smb_luser_t *smb_pwd_iterate(smb_pwditer_t *);
extern void smb_pwd_iterclose(smb_pwditer_t *);

extern int smb_auth_qnd_unicode(smb_wchar_t *, const char *, int);
extern int smb_auth_hmac_md5(unsigned char *, int, unsigned char *, int,
    unsigned char *);

/*
 * A variation on HMAC-MD5 known as HMACT64 is used by Windows systems.
 * The HMACT64() function is the same as the HMAC-MD5() except that
 * it truncates the input key to 64 bytes rather than hashing it down
 * to 16 bytes using the MD5() function.
 */
#define SMBAUTH_HMACT64(D, Ds, K, Ks, digest) \
        smb_auth_hmac_md5(D, Ds, K, (Ks > 64) ? 64 : Ks, digest)

extern int smb_auth_DES(unsigned char *, int, unsigned char *, int,
    unsigned char *, int);
extern int smb_auth_RC4(unsigned char *, int, unsigned char *, int,
    unsigned char *, int);

extern int smb_auth_md4(unsigned char *, unsigned char *, int);
extern int smb_auth_lm_hash(const char *, unsigned char *);
extern int smb_auth_ntlm_hash(const char *, unsigned char *);
extern void smb_auth_ntlm2_mkchallenge(char *, const char *, const char *);
extern void smb_auth_ntlm2_kxkey(unsigned char *, const char *, const char *,
    unsigned char *);

extern int smb_auth_set_info(char *, char *,
    unsigned char *, char *, unsigned char *,
    int, int, smb_auth_info_t *);

extern int smb_auth_ntlmv2_hash(unsigned char *,
        char *, char *, unsigned char *);

boolean_t smb_auth_validate(smb_passwd_t *, char *, char *,
    uchar_t *, uint_t, uchar_t *, uint_t, uchar_t *, uint_t, uchar_t *);

int smb_gen_random_passwd(char *passwd, size_t bufsz);

/*
 * SMB authenticated IPC
 */
extern void smb_ipc_commit(void);
extern void smb_ipc_get_user(char *, size_t);
extern void smb_ipc_get_passwd(uint8_t *, size_t);
extern void smb_ipc_init(void);
extern void smb_ipc_rollback(void);
extern void smb_ipc_set(char *, uint8_t *);

/*
 * Signing flags:
 *
 * SMB_SCF_ENABLE                 Signing is enabled.
 *
 * SMB_SCF_REQUIRED               Signing is enabled and required.
 *                                This flag shouldn't be set if
 *                                SMB_SCF_ENABLE isn't set.
 *
 * SMB_SCF_STARTED                Signing will start after receiving
 *                                the first non-anonymous SessionSetup
 *                                request.
 *
 * SMB_SCF_KEY_ISSET_THIS_LOGON   Indicates whether the MAC key has just
 *                                been set for this logon. (prior to
 *                                sending the SMBSessionSetup request)
 *
 */
#define SMB_SCF_ENABLE          0x01
#define SMB_SCF_REQUIRED        0x02
#define SMB_SCF_STARTED         0x04
#define SMB_SCF_KEY_ISSET_THIS_LOGON    0x08

/*
 * Each domain is categorized using the enum values below.
 * The local domain refers to the local machine and is named
 * after the local hostname. The primary domain is the domain
 * that the system joined. All other domains are either
 * trusted or untrusted, as defined by the primary domain PDC.
 */
typedef enum smb_domain_type {
        SMB_DOMAIN_NULL,
        SMB_DOMAIN_BUILTIN,
        SMB_DOMAIN_LOCAL,
        SMB_DOMAIN_PRIMARY,
        SMB_DOMAIN_ACCOUNT,
        SMB_DOMAIN_TRUSTED,
        SMB_DOMAIN_UNTRUSTED,
        SMB_DOMAIN_NUM_TYPES
} smb_domain_type_t;

/*
 * Information specific to trusted domains
 */
typedef struct smb_domain_trust {
        uint32_t                dti_trust_direction;
        uint32_t                dti_trust_type;
        uint32_t                dti_trust_attrs;
} smb_domain_trust_t;

/*
 * DNS information for domain types that this info is
 * obtained/available. Currently this is only obtained
 * for the primary domain.
 */
typedef struct smb_domain_dns {
        char                    ddi_forest[MAXHOSTNAMELEN];
        char                    ddi_guid[UUID_PRINTABLE_STRING_LENGTH];
} smb_domain_dns_t;

/*
 * This is the information that is held about each domain.
 */
typedef struct smb_domain {
        list_node_t             di_lnd;
        smb_domain_type_t       di_type;
        char                    di_sid[SMB_SID_STRSZ];
        char                    di_nbname[NETBIOS_NAME_SZ];
        char                    di_fqname[MAXHOSTNAMELEN];
        smb_sid_t               *di_binsid;
        union {
                smb_domain_dns_t        di_dns;
                smb_domain_trust_t      di_trust;
        } di_u;
} smb_domain_t;

typedef struct smb_trusted_domains {
        uint32_t        td_num;
        smb_domain_t    *td_domains;
} smb_trusted_domains_t;

#define SMB_DOMAIN_SUCCESS              0
#define SMB_DOMAIN_NOMACHINE_SID        1
#define SMB_DOMAIN_NODOMAIN_SID         2
#define SMB_DOMAIN_NODOMAIN_NAME        3
#define SMB_DOMAIN_INTERNAL_ERR         4
#define SMB_DOMAIN_INVALID_ARG          5
#define SMB_DOMAIN_NO_MEMORY            6
#define SMB_DOMAIN_NO_CACHE             7

typedef struct smb_dcinfo {
        char                    dc_name[MAXHOSTNAMELEN];
        smb_inaddr_t            dc_addr;
        uint32_t                dc_flags;
} smb_dcinfo_t;

/*
 * This structure could contain information about
 * the primary domain the name of selected domain controller
 * for the primary domain and a list of trusted domains if
 * any. The "ex" in the structure name stands for extended.
 * This is to differentiate this structure from smb_domain_t
 * which only contains information about a single domain.
 */
typedef struct smb_domainex {
        smb_dcinfo_t            d_dci;
        smb_domain_t            d_primary;
        smb_trusted_domains_t   d_trusted;
} smb_domainex_t;

int smb_domain_init(uint32_t);
void smb_domain_fini(void);
void smb_domain_show(void);
void smb_domain_save(void);
boolean_t smb_domain_lookup_name(char *, smb_domain_t *);
boolean_t smb_domain_lookup_sid(smb_sid_t *, smb_domain_t *);
boolean_t smb_domain_lookup_type(smb_domain_type_t, smb_domain_t *);
boolean_t smb_domain_getinfo(smb_domainex_t *);
void smb_domain_update(smb_domainex_t *);
uint32_t smb_domain_start_update(void);
void smb_domain_end_update(void);
void smb_domain_set_basic_info(char *, char *, char *, smb_domain_t *);
void smb_domain_set_dns_info(char *, char *, char *, char *, char *,
    smb_domain_t *);
void smb_domain_set_trust_info(char *, char *, char *,
    uint32_t, uint32_t, uint32_t, smb_domain_t *);
void smb_domain_current_dc(smb_dcinfo_t *);
void smb_domain_bad_dc(void);

typedef struct smb_gsid {
        smb_sid_t *gs_sid;
        uint16_t gs_type;
} smb_gsid_t;

struct sqlite_vm;
struct sqlite;

typedef struct smb_giter {
        struct sqlite_vm        *sgi_vm;
        struct sqlite           *sgi_db;
        uint32_t                sgi_nerr;
} smb_giter_t;

typedef struct smb_group {
        char                    *sg_name;
        char                    *sg_cmnt;
        uint32_t                sg_attr;
        uint32_t                sg_rid;
        smb_gsid_t              sg_id;
        smb_domain_type_t       sg_domain;
        smb_privset_t           *sg_privs;
        uint32_t                sg_nmembers;
        smb_gsid_t              *sg_members;
} smb_group_t;

int smb_lgrp_start(void);
void smb_lgrp_stop(void);
int smb_lgrp_add(char *, char *);
int smb_lgrp_rename(char *, char *);
int smb_lgrp_delete(char *);
int smb_lgrp_setcmnt(char *, char *);
int smb_lgrp_getcmnt(char *, char **);
int smb_lgrp_getpriv(char *, uint8_t, boolean_t *);
int smb_lgrp_setpriv(char *, uint8_t, boolean_t);
int smb_lgrp_add_member(char *, smb_sid_t *, uint16_t);
int smb_lgrp_del_member(char *, smb_sid_t *, uint16_t);
int smb_lgrp_getbyname(char *, smb_group_t *);
int smb_lgrp_getbyrid(uint32_t, smb_domain_type_t, smb_group_t *);
void smb_lgrp_free(smb_group_t *);
uint32_t smb_lgrp_err_to_ntstatus(uint32_t);
boolean_t smb_lgrp_is_member(smb_group_t *, smb_sid_t *);
char *smb_lgrp_strerror(int);
int smb_lgrp_iteropen(smb_giter_t *);
void smb_lgrp_iterclose(smb_giter_t *);
boolean_t smb_lgrp_itererror(smb_giter_t *);
int smb_lgrp_iterate(smb_giter_t *, smb_group_t *);

int smb_lookup_sid(const char *, lsa_account_t *);
int smb_lookup_lsid(const char *, lsa_account_t *);
int smb_lookup_name(const char *, sid_type_t, lsa_account_t *);
int smb_lookup_lname(const char *, sid_type_t, lsa_account_t *);

#define SMB_LGRP_SUCCESS                0
#define SMB_LGRP_INVALID_ARG            1
#define SMB_LGRP_INVALID_MEMBER         2
#define SMB_LGRP_INVALID_NAME           3
#define SMB_LGRP_NOT_FOUND              4
#define SMB_LGRP_EXISTS                 5
#define SMB_LGRP_NO_SID                 6
#define SMB_LGRP_NO_LOCAL_SID           7
#define SMB_LGRP_SID_NOTLOCAL           8
#define SMB_LGRP_WKSID                  9
#define SMB_LGRP_NO_MEMORY              10
#define SMB_LGRP_DB_ERROR               11
#define SMB_LGRP_DBINIT_ERROR           12
#define SMB_LGRP_INTERNAL_ERROR         13
#define SMB_LGRP_MEMBER_IN_GROUP        14
#define SMB_LGRP_MEMBER_NOT_IN_GROUP    15
#define SMB_LGRP_NO_SUCH_PRIV           16
#define SMB_LGRP_NO_SUCH_DOMAIN         17
#define SMB_LGRP_PRIV_HELD              18
#define SMB_LGRP_PRIV_NOT_HELD          19
#define SMB_LGRP_BAD_DATA               20
#define SMB_LGRP_NO_MORE                21
#define SMB_LGRP_DBOPEN_FAILED          22
#define SMB_LGRP_DBEXEC_FAILED          23
#define SMB_LGRP_DBINIT_FAILED          24
#define SMB_LGRP_DOMLKP_FAILED          25
#define SMB_LGRP_DOMINS_FAILED          26
#define SMB_LGRP_INSERT_FAILED          27
#define SMB_LGRP_DELETE_FAILED          28
#define SMB_LGRP_UPDATE_FAILED          29
#define SMB_LGRP_LOOKUP_FAILED          30
#define SMB_LGRP_NOT_SUPPORTED          31
#define SMB_LGRP_OFFLINE                32
#define SMB_LGRP_POSIXCREATE_FAILED     33

#define SMB_LGRP_COMMENT_MAX    256

/*
 * values for smb_nic_t.smbflags
 */
#define SMB_NICF_NBEXCL         0x01    /* Excluded from Netbios activities */
#define SMB_NICF_ALIAS          0x02    /* This is an alias */

/*
 * smb_nic_t
 *     nic_host         actual host name
 *     nic_nbname       16-byte NetBIOS host name
 */
typedef struct {
        char            nic_host[MAXHOSTNAMELEN];
        char            nic_nbname[NETBIOS_NAME_SZ];
        char            nic_cmnt[SMB_PI_MAX_COMMENT];
        char            nic_ifname[LIFNAMSIZ];
        smb_inaddr_t    nic_ip;
        uint32_t        nic_mask;
        uint32_t        nic_bcast;
        uint32_t        nic_smbflags;
        uint64_t        nic_sysflags;
} smb_nic_t;

typedef struct smb_niciter {
        smb_nic_t ni_nic;
        int ni_cookie;
        int ni_seqnum;
} smb_niciter_t;

/* NIC config functions */
int smb_nic_init(void);
void smb_nic_fini(void);
int smb_nic_getnum(char *);
int smb_nic_addhost(const char *, const char *, int, const char **);
int smb_nic_delhost(const char *);
int smb_nic_getfirst(smb_niciter_t *);
int smb_nic_getnext(smb_niciter_t *);
boolean_t smb_nic_is_local(smb_inaddr_t *);
boolean_t smb_nic_is_same_subnet(smb_inaddr_t *);

#define SMB_NIC_SUCCESS                 0
#define SMB_NIC_INVALID_ARG             1
#define SMB_NIC_NOT_FOUND               2
#define SMB_NIC_NO_HOST                 3
#define SMB_NIC_NO_MEMORY               4
#define SMB_NIC_DB_ERROR                5
#define SMB_NIC_DBINIT_ERROR            6
#define SMB_NIC_BAD_DATA                7
#define SMB_NIC_NO_MORE                 8
#define SMB_NIC_DBOPEN_FAILED           9
#define SMB_NIC_DBEXEC_FAILED           10
#define SMB_NIC_DBINIT_FAILED           11
#define SMB_NIC_INSERT_FAILED           12
#define SMB_NIC_DELETE_FAILED           13
#define SMB_NIC_SOCK                    14
#define SMB_NIC_IOCTL                   15
#define SMB_NIC_CHANGED                 16

/*
 * Well-known account structure
 *
 * A security identifier (SID) is a unique value of variable length that
 * is used to identify a security principal or security group in
 * Windows. Well-known SIDs are a group of SIDs that identify generic
 * users or generic groups. Their values remain constant across all
 * operating systems.
 *
 * This structure is defined to store these SIDs and other related
 * information about them (e.g. account and domain names) in a
 * predefined table.
 */
typedef struct smb_wka {
        uint8_t         wka_domidx;
        char            *wka_sid;
        char            *wka_name;
        uint16_t        wka_type;
        uint16_t        wka_flags;
        char            *wka_desc;
        smb_sid_t       *wka_binsid;
} smb_wka_t;

/*
 * Defined values for smb_wka.wka_flags
 *
 * SMB_WKAFLG_LGRP_ENABLE               Can be added as local group
 */
#define SMB_WKAFLG_LGRP_ENABLE  0x1

/*
 * Well-known account interfaces
 */
smb_wka_t *smb_wka_lookup_builtin(const char *);
smb_wka_t *smb_wka_lookup_name(const char *);
smb_wka_t *smb_wka_lookup_sid(smb_sid_t *);
smb_sid_t *smb_wka_get_sid(const char *);
char *smb_wka_get_domain(int);
uint32_t smb_wka_token_groups(uint32_t, smb_ids_t *);

/*
 * In memory account representation
 */
typedef struct smb_account {
        char            *a_name;
        char            *a_domain;
        uint16_t        a_type;
        smb_sid_t       *a_sid;
        smb_sid_t       *a_domsid;
        uint32_t        a_rid;
        uint32_t        a_flags;
} smb_account_t;

uint32_t smb_sam_lookup_name(char *, char *, uint16_t, smb_account_t *);
uint32_t smb_sam_lookup_sid(smb_sid_t *, smb_account_t *);
int smb_sam_usr_cnt(void);
uint32_t smb_sam_usr_groups(smb_sid_t *, smb_ids_t *);
int smb_sam_grp_cnt(smb_domain_type_t);
void smb_account_free(smb_account_t *);
boolean_t smb_account_validate(smb_account_t *);

/*
 * Security Descriptor functions.
 */
uint32_t smb_sd_read(char *path, smb_sd_t *, uint32_t);
uint32_t smb_sd_write(char *path, smb_sd_t *, uint32_t);
uint32_t smb_sd_fromfs(smb_fssd_t *, smb_sd_t *);

/* Kernel Module Interface */
int smb_kmod_bind(boolean_t);
boolean_t smb_kmod_isbound(void);
int smb_kmod_setcfg(smb_kmod_cfg_t *);
int smb_kmod_setgmtoff(int32_t);
int smb_kmod_start(int, int, int);
void smb_kmod_stop(void);
int smb_kmod_event_notify(uint32_t);
void smb_kmod_unbind(void);
int smb_kmod_share(nvlist_t *);
int smb_kmod_unshare(nvlist_t *);
int smb_kmod_shareinfo(char *, boolean_t *);
int smb_kmod_shareaccess(smb_netuserinfo_t *, smb_share_t *);
int smb_kmod_get_open_num(smb_opennum_t *);
int smb_kmod_enum(smb_netsvc_t *);
smb_netsvc_t *smb_kmod_enum_init(smb_svcenum_t *);
void smb_kmod_enum_fini(smb_netsvc_t *);
int smb_kmod_session_close(const char *, const char *);
int smb_kmod_file_close(uint32_t);
int smb_kmod_get_spool_doc(uint32_t *, char *, char *, smb_inaddr_t *);

void smb_name_parse(char *, char **, char **);
uint32_t smb_name_validate_share(const char *);
uint32_t smb_name_validate_account(const char *);
uint32_t smb_name_validate_domain(const char *);
uint32_t smb_name_validate_nbdomain(const char *);
uint32_t smb_name_validate_workgroup(const char *);
uint32_t smb_name_validate_rpath(const char *);

/*
 * Interposer library validation
 */
#define SMBEX_VERSION   1
#define SMBEX_KEY       "82273fdc-e32a-18c3-3f78-827929dc23ea"
typedef struct smbex_version {
        uint32_t v_version;
        uuid_t v_uuid;
} smbex_version_t;
void *smb_dlopen(void);
void smb_dlclose(void *);

/*
 * General purpose multi-thread safe cache based on
 * AVL tree
 */
typedef struct smb_cache {
        avl_tree_t      ch_cache;
        rwlock_t        ch_cache_lck;
        uint32_t        ch_state;
        uint32_t        ch_nops;
        uint32_t        ch_wait;
        uint32_t        ch_sequence;
        size_t          ch_datasz;
        mutex_t         ch_mtx;
        cond_t          ch_cv;
        void            (*ch_free)(void *);
        void            (*ch_copy)(const void *, void *, size_t);
} smb_cache_t;

typedef struct smb_cache_node {
        avl_node_t      cn_link;
        void            *cn_data;
} smb_cache_node_t;

typedef struct smb_cache_cursor {
        void            *cc_next;
        uint32_t        cc_sequence;
} smb_cache_cursor_t;

/*
 * flags used with smb_cache_add()
 *
 * SMB_CACHE_ADD        If object doesn't exist add, otherwise fail
 * SMB_CACHE_REPLACE    If object doesn't exist add, otherwise replace
 */
#define SMB_CACHE_ADD           1
#define SMB_CACHE_REPLACE       2

void smb_cache_create(smb_cache_t *, uint32_t,
    int (*cmpfn) (const void *, const void *), void (*freefn)(void *),
    void (*copyfn)(const void *, void *, size_t), size_t);
void smb_cache_destroy(smb_cache_t *);
void smb_cache_flush(smb_cache_t *);
uint32_t smb_cache_num(smb_cache_t *);
int smb_cache_refreshing(smb_cache_t *);
void smb_cache_ready(smb_cache_t *);
int smb_cache_add(smb_cache_t *, const void *, int);
void smb_cache_remove(smb_cache_t *, const void *);
void smb_cache_iterinit(smb_cache_t *, smb_cache_cursor_t *);
boolean_t smb_cache_iterate(smb_cache_t *, smb_cache_cursor_t *, void *);

/*
 * Values returned by smb_reparse_stat()
 */
#define SMB_REPARSE_NOTFOUND    1       /* object does not exist */
#define SMB_REPARSE_NOTREPARSE  2       /* object is NOT a reparse point */
#define SMB_REPARSE_ISREPARSE   3       /* object is a reparse point */

/*
 * Reparse Point API
 */
int smb_reparse_stat(const char *, uint32_t *);
int smb_reparse_svcadd(const char *, const char *, const char *);
int smb_reparse_svcdel(const char *, const char *);
int smb_reparse_svcget(const char *, const char *, char **);

uint32_t smb_get_txid(void);

void smb_syslog(int, const char *, ...);
void smb_vsyslog(int, const char *, va_list ap);
char *smb_syslog_fmt_m(char *, int, const char *, int);

#ifdef  __cplusplus
}
#endif

#endif  /* _LIBSMB_H */