libsmb/common/libsmb.h

/*
 * 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, 2012, Oracle and/or its affiliates. All rights reserved.
 */

#ifndef _LIBSMB_H
#define _LIBSMB_H

#ifdef  __cplusplus
extern "C" {
#endif

#include <sys/types.h>
#include <sys/list.h>
#include <sys/avl.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <inet/tcp.h>
#include <uuid/uuid.h>
#include <netdb.h>
#include <stdlib.h>
#include <libscf.h>
#include <synch.h>
#include <fcntl.h>
#include <thread.h>
#include <smbsrv/string.h>
#include <smbsrv/smb_idmap.h>
#include <smbsrv/netbios.h>
#include <smbsrv/smb_share.h>
#include <smb/nterror.h>
#include <smb/ntstatus.h>
#include <smbsrv/smb_door.h>
#include <smbsrv/alloc.h>
#include <smbsrv/msgbuf.h>
#include <smb/wintypes.h>
#include <smbsrv/smb_xdr.h>
#include <smbsrv/smbinfo.h>
#include <smbsrv/smb_avl.h>
#include <smbsrv/netrauth.h>
#include <smb/ntifs.h>

#define SMB_VARSMB_DIR "/var/smb"
#define SMB_VARRUN_DIR _PATH_SYSVOL "/smb"

/* 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 SMB_FMRI_PREFIX         "network/smb"
#define SMB_DEFAULT_INSTANCE_FMRI   "svc:/network/smb:default"
#define SMB_PG_NAME         "smb"
#define SMBFS_DEFAULT_INSTANCE_FMRI "svc:/network/smb/client:default"

#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   /* invalid parameter */
#define SMBD_SMF_INVALID_VALUE  5   /* invalid property value */
#define SMBD_SMF_NOT_FOUND  6

#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;

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

    SMB_CI_AUTOHOME_MAP,

    SMB_CI_DOMAIN_SID,
    SMB_CI_DOMAIN_NB,
    SMB_CI_DOMAIN_AD,
    SMB_CI_DOMAIN_FOREST,
    SMB_CI_DOMAIN_GUID,
    SMB_CI_DOMAIN_SRV,
    SMB_CI_DC_SELECTED,
    SMB_CI_DC_LEVEL,
    SMB_CI_DOMAIN_LEVEL,
    SMB_CI_FOREST_LEVEL,
    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_ENFORCE_VCZERO,

    SMB_CI_CLNT_SIGNING_REQD,
    SMB_CI_SVR_SIGNING_ENABLE,
    SMB_CI_SVR_SIGNING_REQD,

    SMB_CI_SYNC_ENABLE,

    SMB_CI_SECURITY,
    SMB_CI_NBSCOPE,
    SMB_CI_SYS_CMNT,
    SMB_CI_CLNT_LM_LEVEL,
    SMB_CI_SVR_LM_LEVEL,
    SMB_CI_CLNT_EXTSEC,
    SMB_CI_SVR_EXTSEC,
    SMB_CI_CLNT_REV,
    SMB_CI_SVR_REV,
    SMB_CI_DISCOVERY_INTERVAL,
    SMB_CI_MONITOR_INTERVAL,
    SMB_CI_ENCRYPT_LDAP,

    SMB_CI_ADS_SITE,

    SMB_CI_DYNDNS_ENABLE,
    SMB_CI_DNS_SUFFIX,

    SMB_CI_MACHINE_PASSWD,
    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_MACHINE_GUID,
    SMB_CI_NBNS_BCAST_MAX,

    SMB_CI_DOMAIN_NAME,
    SMB_CI_DOMAIN_FQDN,
    SMB_CI_SIGNING_ENABLE,
    SMB_CI_SIGNING_REQD,
    SMB_CI_LM_LEVEL,

    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_count_property(smb_scfhandle_t *, char *, uint64_t);
extern int smb_smf_get_count_property(smb_scfhandle_t *, char *, uint64_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_instance_create(smb_scfhandle_t *, char *, char *);
extern int smb_smf_instance_delete(smb_scfhandle_t *, char *);
extern int smb_smf_create_instance_pgroup(smb_scfhandle_t *, char *);
extern int smb_smf_delete_instance_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 */
int smb_getdataset(const char *, char *, size_t);
int smb_getmountpoint(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_getcount(smb_cfg_id_t, uint64_t *);
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(const char *, const char *);
extern int smb_config_setstr(smb_cfg_id_t, char *);
extern int smb_config_setcount(smb_cfg_id_t, uint64_t);
extern int smb_config_setnum(smb_cfg_id_t, int64_t);
extern int smb_config_setbool(smb_cfg_id_t, boolean_t);

extern char *smb_config_get_localsid(void);
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_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);
boolean_t smb_config_isexec(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 int smb_set_machine_passwd(char *);
extern int smb_get_machine_passwd(char *, size_t);
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
#define SMB_DN_MAXLEN       2048
#define SMB_IS_FQDN(domain) (strchr(domain, '.') != NULL)

/*
 * Machine trust account
 *
 * m_flags  - values for machine account flags are:
 *
 * SMB_MACHINE_ACCT_PRECREATED:     Machine account is manually created on
 *                  the DC by an admin.
 * SMB_MACHINE_ACCT_AUTO_CREATED:   Machine account is automatically created
 *                  by the domain join operation
 * SMB_MACHINE_ACCT_PASSWD_PROTECTED:   Machine password has been set on the
 *                  account.
 * SMB_MACHINE_CRED_READY:      Operations can be performed using
 *                  system's credentials.
 *
 * m_dn     - distinguished name for the machiine account
 * m_passwd - machine account password
 */
#define SMB_MACHINE_ACCT_PRECREATED         0x01
#define SMB_MACHINE_ACCT_AUTO_CREATED           0x02
#define SMB_MACHINE_ACCT_PASSWD_PROTECTED       0x04
#define SMB_MACHINE_CRED_READY              0x08
#define SMB_MACHINE_ACCT_EXIST(m)           ((m)->m_flags & \
    (SMB_MACHINE_ACCT_PRECREATED | SMB_MACHINE_ACCT_AUTO_CREATED))

typedef struct smb_machine_acct {
    uint32_t    m_flags;
    char        m_dn[SMB_DN_MAXLEN];
    char        m_passwd[NETR_MACHINE_ACCT_PASSWD_MAX];
} smb_machine_acct_t;

/*
 * Results from locating machine account
 *
 * l_status - SMB_JOIN_ERR_XXX error code
 */
typedef struct smb_locate_acct_res {
    uint32_t        l_status;
    smb_machine_acct_t  l_account;
} smb_locate_acct_res_t;

/* possible values for j_nameformat field of smb_joininfo_t */
#define SMB_NAME_NETBIOS    0
#define SMB_NAME_FQDN       1

/*
 * smb_joininfo_t contains information that is needed for smbd to process the
 * following requests:
 *
 * (1) DC discovery
 * (2) Joining the local host to a workgroup
 * (3) Joining the local host to a domain
 *
 * j_mode:      security mode (workgroup vs domain) [for (2) and (3)]
 * j_name_format:   indicates which name format (NETBIOS or FQDN) the user
 *          specified at domain join time.
 * j_wkgrp:     If joining the system to a workgroup, the domain join
 *          utility should set j_wkgrp to be the name of the
 *          workgroup. If joining the system to an AD domain, the
 *          domain join utility should set j_wkgrp to be the name
 *          of the previously configured workgroup.
 *
 *          This is for restoring nb_domain property upon a domain
 *          join failure. [for (2) and (3)]
 * j_nbdomain:      NetBIOS name of a domain [for all three requests]
 * j_fqdomain:      Fully qualified name of a domain [for all three
 *          requests]
 * j_username:      user account used for domain join [for (1) and (3)]
 * j_passwd:        password for the specified user [for (1) and (3)]
 * j_dc:        fully-qualified name of the selected domain controller
 *          [for (3)]
 * j_adjoin:        AD-style vs NT-style domain join [for (3)]
 * j_ou:        distinguished name of the specified OU
 * j_account:       points to the smb_machine_acct_t object returned by
 *                  smb_locate_machine_account().
 * j_ctx:       Not pass through Solaris door (used only by smbd)
 *                      TODO: we may consider to make this a union when
 *          adding the NT-style domain join support.
 */
typedef struct smb_joininfo {
    uint32_t        j_mode;
    uint32_t        j_nameformat;
    char            j_wkgrp[NETBIOS_NAME_SZ];
    char            j_nbdomain[NETBIOS_NAME_SZ];
    char            j_fqdomain[MAXHOSTNAMELEN];
    char            j_username[SMB_USERNAME_MAXLEN + 1];
    char            j_passwd[SMB_PASSWD_MAXLEN + 1];
    char            j_dc[MAXHOSTNAMELEN];
    boolean_t       j_adjoin;
    char            j_ou[SMB_DN_MAXLEN];
    smb_machine_acct_t  *j_account;
    void            *j_ctx;
} smb_joininfo_t;

/*
 * The possible return status of the adjoin routine.
 */
typedef enum smb_join_status {
    SMB_JOIN_SUCCESS = 0,
    SMB_JOIN_ERR_RETRY_W_SAMR,
    SMB_JOIN_ERR_GET_USR_HANDLE,
    SMB_JOIN_ERR_GET_SYS_HANDLE,
    SMB_JOIN_ERR_GET_DCLEVEL,
    SMB_JOIN_ERR_NO_TRUST_ACCT,
    SMB_JOIN_ERR_ADD_TRUST_ACCT,
    SMB_JOIN_ERR_MOD_TRUST_ACCT,
    SMB_JOIN_ERR_REMOVE_TRUST_ACCT,
    SMB_JOIN_ERR_DISABLE_TRUST_ACCT,
    SMB_JOIN_ERR_DUP_TRUST_ACCT,
    SMB_JOIN_ERR_TRUST_ACCT,
    SMB_JOIN_ERR_KSETPWD,
    SMB_JOIN_ERR_INIT_CNTRL_ATTR,
    SMB_JOIN_ERR_UPDATE_CNTRL_ATTR,
    SMB_JOIN_ERR_WRITE_KEYTAB,
    SMB_JOIN_ERR_NOT_IMPLEMENTED,
    SMB_JOIN_ERR_INTERNAL
} smb_join_status_t;

extern void smb_join_errmsg(smb_join_status_t, boolean_t);

/*
 * DC discovery results
 *
 * r_ntstatus:  status of the DC discovery. If the DC discovery is successful,
 *              NT_STATUS_SUCCESS will be returned along with the following
 *              discovery results.
 * r_nbdomain:  the NetBIOS name of the domain which the discovered DC is
 *      serving
 * r_fqdomain:  the fully-qualified name of the domain which the discovered DC
 *      is serving
 * r_dc:    discovered DC
 */
typedef struct smb_discovery_res {
    uint32_t    r_ntstatus;
    char        r_nbdomain[NETBIOS_NAME_SZ];
    char        r_fqdomain[MAXHOSTNAMELEN];
    char        r_dc[MAXHOSTNAMELEN];
} smb_discovery_res_t;

/*
 * APIs to communicate with SMB daemon via door calls
 *
 * Consumers:
 * 1) smbadm CLI
 * 2) ZFSSA Active Directory subsystem ($SRC/lib/ak/libak/common/ak_ad.c)
 */
extern uint32_t smb_discover_dc(const smb_joininfo_t *, smb_discovery_res_t *);
extern int smb_locate_machine_account(const smb_joininfo_t *,
    smb_locate_acct_res_t *);
extern int smb_join_start(void);
extern int smb_join(smb_joininfo_t *, uint32_t *);
extern int smb_join_end(void);
extern bool_t smb_discovery_res_xdr(XDR *, smb_discovery_res_t *);
extern bool_t smb_joininfo_xdr(XDR *, smb_joininfo_t *);
extern bool_t smb_locate_acct_res_xdr(XDR *, smb_locate_acct_res_t *);
extern void smb_joininfo_init_wkgrp(const char *, smb_joininfo_t *);
extern void smb_joininfo_update_domain(smb_joininfo_t *,
    const smb_discovery_res_t *);

/* For ZFSSA only */
extern boolean_t smb_find_ads_server(char *, char *, int);
extern uint32_t smb_get_dcinfo(char *, uint32_t);


uint32_t smb_share_publish_admin(const char *);
int smb_get_domains_info(smb_domains_info_t *);

/* supported namespace types */
#define SMB_NS_ANY  0
#define SMB_NS_DFS  1
#define SMB_NS_FEDFS    2

int smb_ns_create(const char *, const char *, int);
int smb_ns_destroy(const char *, int);

extern void smb_config_getdomaininfo(char *, char *, char *, char *, char *);
extern void smb_config_setdomaininfo(char *, char *, char *, char *, char *);

int smb_config_getdc(char *, size_t);
int smb_config_setdc(char *);
int smb_config_getdsattr(const char *, int64_t *);
void smb_config_setdsattr(const char *, int64_t);

void smb_idmap_check(const char *, idmap_stat);

/*
 * The DC failover service will ensure an alternative DC is reachable before
 * setting it as the newly selected DC. However, the newly selected DC may
 * have gone down between the time the DC failover service checks for aliveness
 * and the time that the DC failure reporter makes its request.
 *
 * A DC failure reporter should account for the specified number of DC failures
 * and retry an outgoing request as needed.
 */
#define SMB_MAX_DC_FAILURES     5

void smb_dc_info_init(void);
void smb_dc_report_failure(char *, char *);
void smb_dc_await_failure(void);
boolean_t smb_dc_need_reselection(void);
void smb_dc_ignore_failure(void);
void smb_dc_reselecting(void);
void smb_dc_reselected(boolean_t);
void smb_dc_await_reselection(void);

/* Miscellaneous functions */
extern boolean_t smb_strcaseendswith(const char *, const char *);
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_get_dns_suffix(char *, size_t);
extern int smb_getdomainname_nb(char *, size_t);
extern int smb_getdomainname_ad(char *, size_t);
extern int smb_getdomainname_resolv(char *, size_t);
extern int smb_getdomainname_dns(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 *);

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

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

const char *xlate_nt_status(unsigned int);

/*
 * Authentication
 */

#define SMBAUTH_LM_MAGIC_STR    "KGS!@#$%"

#define SMBAUTH_HASH_SZ         16  /* LM/NTLM/NTLMv2 hash size */
#define SMBAUTH_SESSION_HASH_SZ     8   /* NTLM2 session hash size */
#define SMBAUTH_RESP_SZ         24  /* LM/LMv2/NTLM/NTLM2 session */
#define SMBAUTH_LM_PWD_SZ       14  /* LM password size */
#define SMBAUTH_V2_CLNT_CHALLENGE_SZ    8   /* for both LMv2 and NTLMv2 */
#define SMBAUTH_CLNT_NONCE_SZ       8   /* NTLM2 client nonce size */
#define SMBAUTH_SESSION_NONCE_SZ    16  /* NTLM2 session nonce size */

/*
 * SMBAUTH_SESSION_KEY_SZ macro defines the length of NTLM/NTLMv2/NTLM2
 * session response user session key. It shouldn't be used to represent the
 * length of any Kerberos session key, since that varies in length depending
 * upon which cryptographical algorithm is used.
 */
#define SMBAUTH_SESSION_KEY_SZ  16
#define SMBAUTH_HEXHASH_SZ  (SMBAUTH_HASH_SZ * 2)
#define SMBAUTH_FAILURE     1
#define SMBAUTH_SUCCESS     0
#define MD_DIGEST_LEN       16

/* Default revision number (common between client and server) */
#define SMB_REV_DEFAULT     "1.0"

/* SMB client's revisions */
#define SMB_CLNT_REV        "2.0" /* new svc:/network/smb service */

/* SMB server's revisions */
#define SMB_SVR_REV_EXTSEC  "3.0" /* Kerberos user auth capable */
#define SMB_SVR_REV     "3.0"

int smb_revision_cmp(char *, smb_cfg_id_t);

/*
 * 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_V2_CLNT_CHALLENGE_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_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_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 *);

/*
 * 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_md4(unsigned char *, const unsigned char *, int);
extern int smb_auth_md5(unsigned char *, const unsigned char *, int);
extern int smb_auth_hmac_md5(const unsigned char *, int, const unsigned char *,
    int, unsigned char *);

extern int smb_auth_lm_hash(const char *, unsigned char *);
extern int smb_auth_ntlm_hash(const char *, unsigned char *);
extern int smb_auth_ntlmv2_hash(unsigned char *, char *, char *,
    unsigned char *);

extern int
smb_auth_ntlm2_session_response(unsigned char *, int, const unsigned char *,
    int, unsigned char *, int);
extern int
smb_auth_ntlm2_usr_ssn_key(const unsigned char *, const unsigned 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_gen_session_key(smb_auth_info_t *, unsigned char *);

extern boolean_t smb_auth_validate_lm(unsigned char *, uint32_t, smb_passwd_t *,
    unsigned char *, int, char *, char *);
extern boolean_t smb_auth_validate_nt(unsigned char *, uint32_t, smb_passwd_t *,
    unsigned char *, int, char *, char *, unsigned char *, int, uchar_t *);
extern int smb_auth_qnd_unicode(smb_wchar_t *, const char *, int);


/*
 * SMB authenticated IPC
 */
#define SMB_IPC_MAXPWDLEN   256
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, boolean_t);
extern void smb_ipc_init(void);
extern void smb_ipc_rollback(void);
extern int smb_ipc_set(const char *, const char *);
extern boolean_t smb_ipc_get_ctx(void);
extern void smb_ipc_set_ctx(boolean_t);

/*
 * SMB MAC Signing
 */

/*
 * SMB_MAC_KEY_MAXLEN - maximum length of a MAC key
 *
 * The length of a MAC key varies depending upon which authentication
 * mechanism is used.
 *
 * For NTLM/NTLMv2, the mac key is made up of both the NTLM/NTLMv2 session
 * key (16 bytes) and the challenge response.
 *
 * For Kerberos, the MAC key is basically the session key that can be
 * extracted from the GSS context. The maximum length is 32 bytes if
 * the associated enctype is AES-256.
 */
#define SMB_MAC_KEY_MAXLEN  (SMBAUTH_SESSION_KEY_SZ + SMBAUTH_CS_MAXLEN)
#define SMB_SIG_OFFS    14  /* signature field offset within header */
#define SMB_SIG_SIZE    8   /* SMB signature size */

/*
 * 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

/*
 * smb_sign_ctx
 *
 * SMB signing context.
 *
 *  ssc_seqnum              sequence number
 *  ssc_keylen              mac key length
 *  ssc_mid                 multiplex id - reserved
 *  ssc_flags               flags
 *  ssc_mackey              mac key
 *  ssc_sign                mac signature
 *
 */
typedef struct smb_sign_ctx {
    unsigned int ssc_seqnum;
    unsigned short ssc_keylen;
    unsigned short ssc_mid;
    unsigned int ssc_flags;
    unsigned char ssc_mackey[SMB_MAC_KEY_MAXLEN];
    unsigned char ssc_sign[SMB_SIG_SIZE];
} smb_sign_ctx_t;

extern int smb_mac_init(smb_sign_ctx_t *sign_ctx, smb_auth_info_t *auth);
extern int smb_mac_calc(smb_sign_ctx_t *sign_ctx,
    const unsigned char *buf, size_t buf_len, unsigned char *mac_sign);
extern int smb_mac_chk(smb_sign_ctx_t *sign_ctx,
    const unsigned char *buf, size_t buf_len);
extern int smb_mac_sign(smb_sign_ctx_t *sign_ctx,
    unsigned char *buf, size_t buf_len);
extern void smb_mac_inc_seqnum(smb_sign_ctx_t *sign_ctx);
extern void smb_mac_dec_seqnum(smb_sign_ctx_t *sign_ctx);

/*
 * 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

/*
 * 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 {
    char            d_dc[MAXHOSTNAMELEN];
    smb_domain_t        d_primary;
    smb_trusted_domains_t   d_trusted;
} smb_domainex_t;

void smb_domain_init(void);
void smb_domain_fini(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 *);
boolean_t smb_domain_getdc(char *, size_t);
boolean_t smb_domain_setdc(char *);
void smb_domain_update(smb_domainex_t *);
uint32_t smb_domain_start_read_delay(void);
void smb_domain_end_read_delay(void);
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 *);
int smb_domains_getinfo(smb_domains_info_t *);
void smb_domains_info_free(list_t *);
boolean_t smb_domainjoin_inprogress(void);
void smb_domainjoin_start(void);
void smb_domainjoin_end(void);


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

/*
 * This is opaque group iterator handle for SMB local group iteration. The
 * implementation of this handle can be found in struct smb_giter in smb_lgrp.c.
 */
typedef struct smb_giter 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_name(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;
} 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(smb_share_t *, smb_sd_t *, uint32_t);
uint32_t smb_sd_write(smb_share_t *, smb_sd_t *, uint32_t);
uint32_t smb_sd_fromfs(smb_fssd_t *, smb_sd_t *);

/* Kernel Module Interface */
int smb_kmod_bind(void);
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);
void smb_kmod_online(void);
void smb_kmod_stop(void);
int smb_kmod_event_notify(uint32_t);
void smb_kmod_unbind(void);
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 *);
int smb_kmod_share_lookup(const char *, int, smb_share_t *);
uint32_t smb_kmod_share_count(uint32_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 *);

uint32_t smb_get_txid(void);

#define SMB_LOG_LINE_SZ     1024

typedef uint32_t    smb_log_hdl_t;

typedef struct smb_log_item {
    list_node_t li_lnd;
    char        li_msg[SMB_LOG_LINE_SZ];
} smb_log_item_t;

typedef struct smb_log {
    smb_log_hdl_t   l_handle;
    int     l_cnt;
    int     l_max_cnt;
    mutex_t     l_mtx;
    list_t      l_list;
    char        l_file[MAXPATHLEN];
} smb_log_t;

typedef struct smb_loglist_item {
    list_node_t lli_lnd;
    smb_log_t   lli_log;
} smb_loglist_item_t;

typedef struct smb_loglist {
    mutex_t     ll_mtx;
    list_t      ll_list;
} smb_loglist_t;

smb_log_hdl_t smb_log_create(int, char *);
void smb_log(smb_log_hdl_t, int, const char *, ...);
void smb_log_dumpall(void);

typedef struct {
    struct flock    l_flock;
    pid_t       l_pid;      /* process's pid at last lock */
    thread_t    l_tid;      /* thread that holds the lock */
    int     l_fildes;
    mutex_t     l_mtx;
} smb_lockinfo_t;

int smb_file_lock(char *, smb_lockinfo_t *);
int smb_file_unlock(smb_lockinfo_t *);

#ifdef  __cplusplus
}
#endif

#endif  /* _LIBSMB_H */