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krb5.h

/*
 * Copyright (c) 1997 - 2002 Kungliga Tekniska Högskolan
 * (Royal Institute of Technology, Stockholm, Sweden). 
 * 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. Neither the name of the Institute nor the names of its contributors 
 *    may be used to endorse or promote products derived from this software 
 *    without specific prior written permission. 
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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: krb5.h,v 1.209.2.2 2004/06/21 08:32:00 lha Exp $ */

#ifndef __KRB5_H__
#define __KRB5_H__

#include <time.h>
#include <krb5-types.h>

#include <asn1_err.h>
#include <krb5_err.h>
#include <heim_err.h>
#include <k524_err.h>

#include <krb5_asn1.h>

/* name confusion with MIT */
#ifndef KRB5KDC_ERR_KEY_EXP
#define KRB5KDC_ERR_KEY_EXP KRB5KDC_ERR_KEY_EXPIRED
#endif

/* simple constants */

#ifndef TRUE
#define TRUE  1
#define FALSE 0
#endif

typedef int krb5_boolean;

typedef int32_t krb5_error_code;

typedef int krb5_kvno;

typedef u_int32_t krb5_flags;

typedef void *krb5_pointer;
typedef const void *krb5_const_pointer;

typedef octet_string krb5_data;

struct krb5_crypto_data;
typedef struct krb5_crypto_data *krb5_crypto;

typedef CKSUMTYPE krb5_cksumtype;

typedef Checksum krb5_checksum;

typedef ENCTYPE krb5_enctype;

/* alternative names */
enum {
    ENCTYPE_NULL        = ETYPE_NULL,
    ENCTYPE_DES_CBC_CRC       = ETYPE_DES_CBC_CRC,
    ENCTYPE_DES_CBC_MD4       = ETYPE_DES_CBC_MD4,
    ENCTYPE_DES_CBC_MD5       = ETYPE_DES_CBC_MD5,
    ENCTYPE_DES3_CBC_MD5      = ETYPE_DES3_CBC_MD5,
    ENCTYPE_OLD_DES3_CBC_SHA1 = ETYPE_OLD_DES3_CBC_SHA1,
    ENCTYPE_SIGN_DSA_GENERATE = ETYPE_SIGN_DSA_GENERATE,
    ENCTYPE_ENCRYPT_RSA_PRIV  = ETYPE_ENCRYPT_RSA_PRIV,
    ENCTYPE_ENCRYPT_RSA_PUB   = ETYPE_ENCRYPT_RSA_PUB,
    ENCTYPE_DES3_CBC_SHA1     = ETYPE_DES3_CBC_SHA1,
    ENCTYPE_ARCFOUR_HMAC_MD5  = ETYPE_ARCFOUR_HMAC_MD5,
    ENCTYPE_ARCFOUR_HMAC_MD5_56     = ETYPE_ARCFOUR_HMAC_MD5_56,
    ENCTYPE_ENCTYPE_PK_CROSS  = ETYPE_ENCTYPE_PK_CROSS,
    ENCTYPE_DES_CBC_NONE      = ETYPE_DES_CBC_NONE,
    ENCTYPE_DES3_CBC_NONE     = ETYPE_DES3_CBC_NONE,
    ENCTYPE_DES_CFB64_NONE    = ETYPE_DES_CFB64_NONE,
    ENCTYPE_DES_PCBC_NONE     = ETYPE_DES_PCBC_NONE
};

typedef PADATA_TYPE krb5_preauthtype;

typedef enum krb5_key_usage {
    KRB5_KU_PA_ENC_TIMESTAMP = 1,
    /* AS-REQ PA-ENC-TIMESTAMP padata timestamp, encrypted with the
       client key (section 5.4.1) */
    KRB5_KU_TICKET = 2,
    /* AS-REP Ticket and TGS-REP Ticket (includes tgs session key or
       application session key), encrypted with the service key
       (section 5.4.2) */
    KRB5_KU_AS_REP_ENC_PART = 3,
    /* AS-REP encrypted part (includes tgs session key or application
       session key), encrypted with the client key (section 5.4.2) */
    KRB5_KU_TGS_REQ_AUTH_DAT_SESSION = 4,
    /* TGS-REQ KDC-REQ-BODY AuthorizationData, encrypted with the tgs
       session key (section 5.4.1) */
    KRB5_KU_TGS_REQ_AUTH_DAT_SUBKEY = 5,
    /* TGS-REQ KDC-REQ-BODY AuthorizationData, encrypted with the tgs
          authenticator subkey (section 5.4.1) */
    KRB5_KU_TGS_REQ_AUTH_CKSUM = 6,
    /* TGS-REQ PA-TGS-REQ padata AP-REQ Authenticator cksum, keyed
       with the tgs session key (sections 5.3.2, 5.4.1) */
    KRB5_KU_TGS_REQ_AUTH = 7,
    /* TGS-REQ PA-TGS-REQ padata AP-REQ Authenticator (includes tgs
       authenticator subkey), encrypted with the tgs session key
       (section 5.3.2) */
    KRB5_KU_TGS_REP_ENC_PART_SESSION = 8,
    /* TGS-REP encrypted part (includes application session key),
       encrypted with the tgs session key (section 5.4.2) */
    KRB5_KU_TGS_REP_ENC_PART_SUB_KEY = 9,
    /* TGS-REP encrypted part (includes application session key),
       encrypted with the tgs authenticator subkey (section 5.4.2) */
    KRB5_KU_AP_REQ_AUTH_CKSUM = 10,
    /* AP-REQ Authenticator cksum, keyed with the application session
       key (section 5.3.2) */
    KRB5_KU_AP_REQ_AUTH = 11,
    /* AP-REQ Authenticator (includes application authenticator
       subkey), encrypted with the application session key (section
       5.3.2) */
    KRB5_KU_AP_REQ_ENC_PART = 12,
    /* AP-REP encrypted part (includes application session subkey),
       encrypted with the application session key (section 5.5.2) */
    KRB5_KU_KRB_PRIV = 13,
    /* KRB-PRIV encrypted part, encrypted with a key chosen by the
       application (section 5.7.1) */
    KRB5_KU_KRB_CRED = 14,
    /* KRB-CRED encrypted part, encrypted with a key chosen by the
       application (section 5.8.1) */
    KRB5_KU_KRB_SAFE_CKSUM = 15,
    /* KRB-SAFE cksum, keyed with a key chosen by the application
       (section 5.6.1) */
    KRB5_KU_OTHER_ENCRYPTED = 16,
    /* Data which is defined in some specification outside of
       Kerberos to be encrypted using an RFC1510 encryption type. */
    KRB5_KU_OTHER_CKSUM = 17,
    /* Data which is defined in some specification outside of
       Kerberos to be checksummed using an RFC1510 checksum type. */
    KRB5_KU_KRB_ERROR = 18,
    /* Krb-error checksum */
    KRB5_KU_AD_KDC_ISSUED = 19,
    /* AD-KDCIssued checksum */
    KRB5_KU_MANDATORY_TICKET_EXTENSION = 20,
    /* Checksum for Mandatory Ticket Extensions */
    KRB5_KU_AUTH_DATA_TICKET_EXTENSION = 21,
    /* Checksum in Authorization Data in Ticket Extensions */
    KRB5_KU_USAGE_SEAL = 22,
    /* seal in GSSAPI krb5 mechanism */
    KRB5_KU_USAGE_SIGN = 23,
    /* sign in GSSAPI krb5 mechanism */
    KRB5_KU_USAGE_SEQ = 24
    /* SEQ in GSSAPI krb5 mechanism */
} krb5_key_usage;

typedef krb5_key_usage krb5_keyusage;

typedef enum krb5_salttype {
    KRB5_PW_SALT = KRB5_PADATA_PW_SALT,
    KRB5_AFS3_SALT = KRB5_PADATA_AFS3_SALT
}krb5_salttype;

typedef struct krb5_salt {
    krb5_salttype salttype;
    krb5_data saltvalue;
} krb5_salt;

typedef ETYPE_INFO krb5_preauthinfo;

typedef struct {
    krb5_preauthtype type;
    krb5_preauthinfo info; /* list of preauthinfo for this type */
} krb5_preauthdata_entry;

typedef struct krb5_preauthdata {
    unsigned len;
    krb5_preauthdata_entry *val;
}krb5_preauthdata;

typedef enum krb5_address_type { 
    KRB5_ADDRESS_INET     =   2,
    KRB5_ADDRESS_INET6    =  24,
    KRB5_ADDRESS_ADDRPORT = 256,
    KRB5_ADDRESS_IPPORT   = 257
} krb5_address_type;

enum {
  AP_OPTS_USE_SESSION_KEY = 1,
  AP_OPTS_MUTUAL_REQUIRED = 2,
  AP_OPTS_USE_SUBKEY = 4            /* library internal */
};

typedef HostAddress krb5_address;

typedef HostAddresses krb5_addresses;

typedef enum krb5_keytype { 
    KEYTYPE_NULL  = 0,
    KEYTYPE_DES         = 1,
    KEYTYPE_DES3  = 7,
    KEYTYPE_AES128      = 17,
    KEYTYPE_AES256      = 18,
    KEYTYPE_ARCFOUR     = 23,
    KEYTYPE_ARCFOUR_56  = 24
} krb5_keytype;

typedef EncryptionKey krb5_keyblock;

typedef AP_REQ krb5_ap_req;

struct krb5_cc_ops;

#define KRB5_DEFAULT_CCFILE_ROOT "/tmp/krb5cc_"

#define KRB5_DEFAULT_CCROOT "FILE:" KRB5_DEFAULT_CCFILE_ROOT

#define KRB5_ACCEPT_NULL_ADDRESSES(C)                              \
    krb5_config_get_bool_default((C), NULL, TRUE,                  \
                         "libdefaults", "accept_null_addresses", \
                         NULL)

typedef void *krb5_cc_cursor;

typedef struct krb5_ccache_data {
    const struct krb5_cc_ops *ops;
    krb5_data data;
}krb5_ccache_data;

typedef struct krb5_ccache_data *krb5_ccache;

typedef struct krb5_context_data *krb5_context;

typedef Realm krb5_realm;
typedef const char *krb5_const_realm; /* stupid language */

#define krb5_realm_length(r) strlen(r)
#define krb5_realm_data(r) (r)

typedef Principal krb5_principal_data;
typedef struct Principal *krb5_principal;
typedef const struct Principal *krb5_const_principal;

typedef time_t krb5_deltat;
typedef time_t krb5_timestamp;

typedef struct krb5_times {
  krb5_timestamp authtime;
  krb5_timestamp starttime;
  krb5_timestamp endtime;
  krb5_timestamp renew_till;
} krb5_times;

typedef union {
    TicketFlags b;
    krb5_flags i;
} krb5_ticket_flags;

/* options for krb5_get_in_tkt() */
#define KDC_OPT_FORWARDABLE         (1 << 1)
#define KDC_OPT_FORWARDED           (1 << 2)
#define KDC_OPT_PROXIABLE           (1 << 3)
#define KDC_OPT_PROXY               (1 << 4)
#define KDC_OPT_ALLOW_POSTDATE            (1 << 5)
#define KDC_OPT_POSTDATED           (1 << 6)
#define KDC_OPT_RENEWABLE           (1 << 8)
#define KDC_OPT_REQUEST_ANONYMOUS   (1 << 14)
#define KDC_OPT_DISABLE_TRANSITED_CHECK   (1 << 26)
#define KDC_OPT_RENEWABLE_OK        (1 << 27)
#define KDC_OPT_ENC_TKT_IN_SKEY           (1 << 28)
#define KDC_OPT_RENEW               (1 << 30)
#define KDC_OPT_VALIDATE            (1 << 31)

typedef union {
    KDCOptions b;
    krb5_flags i;
} krb5_kdc_flags;

/* flags for krb5_verify_ap_req */

#define KRB5_VERIFY_AP_REQ_IGNORE_INVALID (1 << 0)

#define KRB5_GC_CACHED              (1U << 0)
#define KRB5_GC_USER_USER           (1U << 1)

/* constants for compare_creds (and cc_retrieve_cred) */
#define KRB5_TC_DONT_MATCH_REALM    (1U << 31)
#define KRB5_TC_MATCH_KEYTYPE       (1U << 30)

typedef AuthorizationData krb5_authdata;

typedef KRB_ERROR krb5_error;

typedef struct krb5_creds {
    krb5_principal client;
    krb5_principal server;
    krb5_keyblock session;
    krb5_times times;
    krb5_data ticket;
    krb5_data second_ticket;
    krb5_authdata authdata;
    krb5_addresses addresses;
    krb5_ticket_flags flags;
} krb5_creds;

typedef struct krb5_cc_ops {
    const char *prefix;
    const char* (*get_name)(krb5_context, krb5_ccache);
    krb5_error_code (*resolve)(krb5_context, krb5_ccache *, const char *);
    krb5_error_code (*gen_new)(krb5_context, krb5_ccache *);
    krb5_error_code (*init)(krb5_context, krb5_ccache, krb5_principal);
    krb5_error_code (*destroy)(krb5_context, krb5_ccache);
    krb5_error_code (*close)(krb5_context, krb5_ccache);
    krb5_error_code (*store)(krb5_context, krb5_ccache, krb5_creds*);
    krb5_error_code (*retrieve)(krb5_context, krb5_ccache, 
                        krb5_flags, krb5_creds*, krb5_creds);
    krb5_error_code (*get_princ)(krb5_context, krb5_ccache, krb5_principal*);
    krb5_error_code (*get_first)(krb5_context, krb5_ccache, krb5_cc_cursor *);
    krb5_error_code (*get_next)(krb5_context, krb5_ccache, 
                        krb5_cc_cursor*, krb5_creds*);
    krb5_error_code (*end_get)(krb5_context, krb5_ccache, krb5_cc_cursor*);
    krb5_error_code (*remove_cred)(krb5_context, krb5_ccache, 
                           krb5_flags, krb5_creds*);
    krb5_error_code (*set_flags)(krb5_context, krb5_ccache, krb5_flags);
    int (*get_version)(krb5_context, krb5_ccache);
} krb5_cc_ops;

struct krb5_log_facility;

struct krb5_config_binding {
    enum { krb5_config_string, krb5_config_list } type;
    char *name;
    struct krb5_config_binding *next;
    union {
      char *string;
      struct krb5_config_binding *list;
      void *generic;
    } u;
};

typedef struct krb5_config_binding krb5_config_binding;

typedef krb5_config_binding krb5_config_section;

typedef struct krb5_context_data {
    krb5_enctype *etypes;
    krb5_enctype *etypes_des;
    char **default_realms;
    time_t max_skew;
    time_t kdc_timeout;
    unsigned max_retries;
    int32_t kdc_sec_offset;
    int32_t kdc_usec_offset;
    krb5_config_section *cf;
    struct et_list *et_list;
    struct krb5_log_facility *warn_dest;
    krb5_cc_ops *cc_ops;
    int num_cc_ops;
    const char *http_proxy;
    const char *time_fmt;
    krb5_boolean log_utc;
    const char *default_keytab;
    const char *default_keytab_modify;
    krb5_boolean use_admin_kdc;
    krb5_addresses *extra_addresses;
    krb5_boolean scan_interfaces;   /* `ifconfig -a' */
    krb5_boolean srv_lookup;        /* do SRV lookups */
    krb5_boolean srv_try_txt;       /* try TXT records also */
    int32_t fcache_vno;             /* create cache files w/ this
                                           version */
    int num_kt_types;               /* # of registered keytab types */
    struct krb5_keytab_data *kt_types;  /* registered keytab types */
    const char *date_fmt;
    char *error_string;
    char error_buf[256];
    krb5_addresses *ignore_addresses;
    char *default_cc_name;
} krb5_context_data;

typedef struct krb5_ticket {
    EncTicketPart ticket;
    krb5_principal client;
    krb5_principal server;
} krb5_ticket;

typedef Authenticator krb5_authenticator_data;

typedef krb5_authenticator_data *krb5_authenticator;

struct krb5_rcache_data;
typedef struct krb5_rcache_data *krb5_rcache;
typedef Authenticator krb5_donot_replay;

#define KRB5_STORAGE_HOST_BYTEORDER             0x01 /* old */
#define KRB5_STORAGE_PRINCIPAL_WRONG_NUM_COMPONENTS   0x02
#define KRB5_STORAGE_PRINCIPAL_NO_NAME_TYPE           0x04
#define KRB5_STORAGE_KEYBLOCK_KEYTYPE_TWICE           0x08
#define KRB5_STORAGE_BYTEORDER_MASK             0x60
#define KRB5_STORAGE_BYTEORDER_BE               0x00 /* default */
#define KRB5_STORAGE_BYTEORDER_LE               0x20
#define KRB5_STORAGE_BYTEORDER_HOST             0x40

struct krb5_storage_data;
typedef struct krb5_storage_data krb5_storage;

typedef struct krb5_keytab_entry {
    krb5_principal principal;
    krb5_kvno vno;
    krb5_keyblock keyblock;
    u_int32_t timestamp;
} krb5_keytab_entry;

typedef struct krb5_kt_cursor {
    int fd;
    krb5_storage *sp;
    void *data;
} krb5_kt_cursor;

struct krb5_keytab_data;

typedef struct krb5_keytab_data *krb5_keytab;

#define KRB5_KT_PREFIX_MAX_LEN      30

struct krb5_keytab_data {
    const char *prefix;
    krb5_error_code (*resolve)(krb5_context, const char*, krb5_keytab);
    krb5_error_code (*get_name)(krb5_context, krb5_keytab, char*, size_t);
    krb5_error_code (*close)(krb5_context, krb5_keytab);
    krb5_error_code (*get)(krb5_context, krb5_keytab, krb5_const_principal, 
                     krb5_kvno, krb5_enctype, krb5_keytab_entry*);
    krb5_error_code (*start_seq_get)(krb5_context, krb5_keytab, krb5_kt_cursor*);
    krb5_error_code (*next_entry)(krb5_context, krb5_keytab, 
                          krb5_keytab_entry*, krb5_kt_cursor*);
    krb5_error_code (*end_seq_get)(krb5_context, krb5_keytab, krb5_kt_cursor*);
    krb5_error_code (*add)(krb5_context, krb5_keytab, krb5_keytab_entry*);
    krb5_error_code (*remove)(krb5_context, krb5_keytab, krb5_keytab_entry*);
    void *data;
    int32_t version;
};

typedef struct krb5_keytab_data krb5_kt_ops;

struct krb5_keytab_key_proc_args {
    krb5_keytab keytab;
    krb5_principal principal;
};

typedef struct krb5_keytab_key_proc_args krb5_keytab_key_proc_args;

typedef struct krb5_replay_data {
    krb5_timestamp timestamp;
    u_int32_t usec;
    u_int32_t seq;
} krb5_replay_data;

/* flags for krb5_auth_con_setflags */
enum {
    KRB5_AUTH_CONTEXT_DO_TIME      = 1,
    KRB5_AUTH_CONTEXT_RET_TIME     = 2,
    KRB5_AUTH_CONTEXT_DO_SEQUENCE  = 4,
    KRB5_AUTH_CONTEXT_RET_SEQUENCE = 8,
    KRB5_AUTH_CONTEXT_PERMIT_ALL   = 16
};

/* flags for krb5_auth_con_genaddrs */
enum {
    KRB5_AUTH_CONTEXT_GENERATE_LOCAL_ADDR       = 1,
    KRB5_AUTH_CONTEXT_GENERATE_LOCAL_FULL_ADDR  = 3,
    KRB5_AUTH_CONTEXT_GENERATE_REMOTE_ADDR      = 4,
    KRB5_AUTH_CONTEXT_GENERATE_REMOTE_FULL_ADDR = 12
};

typedef struct krb5_auth_context_data {
    unsigned int flags;

    krb5_address *local_address;
    krb5_address *remote_address;
    int16_t local_port;
    int16_t remote_port;
    krb5_keyblock *keyblock;
    krb5_keyblock *local_subkey;
    krb5_keyblock *remote_subkey;

    u_int32_t local_seqnumber;
    u_int32_t remote_seqnumber;

    krb5_authenticator authenticator;
  
    krb5_pointer i_vector;
  
    krb5_rcache rcache;

    krb5_keytype keytype;     /* ¿requested key type ? */
    krb5_cksumtype cksumtype; /* ¡requested checksum type! */
  
}krb5_auth_context_data, *krb5_auth_context;

typedef struct {
    KDC_REP kdc_rep;
    EncKDCRepPart enc_part;
    KRB_ERROR error;
} krb5_kdc_rep;

extern const char *heimdal_version, *heimdal_long_version;

typedef void (*krb5_log_log_func_t)(const char*, const char*, void*);
typedef void (*krb5_log_close_func_t)(void*);

typedef struct krb5_log_facility {
    const char *program;
    int len;
    struct facility *val;
} krb5_log_facility;

typedef EncAPRepPart krb5_ap_rep_enc_part;

#define KRB5_RECVAUTH_IGNORE_VERSION 1

#define KRB5_SENDAUTH_VERSION "KRB5_SENDAUTH_V1.0"

#define KRB5_TGS_NAME_SIZE (6)
#define KRB5_TGS_NAME ("krbtgt")

/* variables */

extern const char *krb5_config_file;
extern const char *krb5_defkeyname;

typedef enum {
    KRB5_PROMPT_TYPE_PASSWORD       = 0x1,
    KRB5_PROMPT_TYPE_NEW_PASSWORD   = 0x2,
    KRB5_PROMPT_TYPE_NEW_PASSWORD_AGAIN = 0x3,
    KRB5_PROMPT_TYPE_PREAUTH        = 0x4
} krb5_prompt_type;

typedef struct _krb5_prompt {
    const char *prompt;
    int hidden;
    krb5_data *reply;
    krb5_prompt_type type;
} krb5_prompt;

typedef int (*krb5_prompter_fct)(krb5_context context,
                         void *data,
                         const char *name,
                         const char *banner,
                         int num_prompts,
                         krb5_prompt prompts[]);

typedef krb5_error_code (*krb5_key_proc)(krb5_context context,
                               krb5_enctype type,
                               krb5_salt salt,
                               krb5_const_pointer keyseed,
                               krb5_keyblock **key);
typedef krb5_error_code (*krb5_decrypt_proc)(krb5_context context,
                                   krb5_keyblock *key,
                                   krb5_key_usage usage,
                                   krb5_const_pointer decrypt_arg,
                                   krb5_kdc_rep *dec_rep);


typedef struct _krb5_get_init_creds_opt {
    krb5_flags flags;
    krb5_deltat tkt_life;
    krb5_deltat renew_life;
    int forwardable;
    int proxiable;
    int anonymous;
    krb5_enctype *etype_list;
    int etype_list_length;
    krb5_addresses *address_list;
#if 0 /* this is the MIT-way */
    krb5_address **address_list;
#endif
    /* XXX the next three should not be used, as they may be
       removed later */
    krb5_preauthtype *preauth_list;
    int preauth_list_length;
    krb5_data *salt;
} krb5_get_init_creds_opt;

#define KRB5_GET_INIT_CREDS_OPT_TKT_LIFE  0x0001
#define KRB5_GET_INIT_CREDS_OPT_RENEW_LIFE      0x0002
#define KRB5_GET_INIT_CREDS_OPT_FORWARDABLE     0x0004
#define KRB5_GET_INIT_CREDS_OPT_PROXIABLE 0x0008
#define KRB5_GET_INIT_CREDS_OPT_ETYPE_LIST      0x0010
#define KRB5_GET_INIT_CREDS_OPT_ADDRESS_LIST    0x0020
#define KRB5_GET_INIT_CREDS_OPT_PREAUTH_LIST    0x0040
#define KRB5_GET_INIT_CREDS_OPT_SALT            0x0080
#define KRB5_GET_INIT_CREDS_OPT_ANONYMOUS 0x0100

typedef struct _krb5_verify_init_creds_opt {
    krb5_flags flags;
    int ap_req_nofail;
} krb5_verify_init_creds_opt;

#define KRB5_VERIFY_INIT_CREDS_OPT_AP_REQ_NOFAIL      0x0001

typedef struct krb5_verify_opt {
    unsigned int flags;
    krb5_ccache ccache;
    krb5_keytab keytab;
    krb5_boolean secure;
    const char *service;
} krb5_verify_opt;

#define KRB5_VERIFY_LREALMS         1
#define KRB5_VERIFY_NO_ADDRESSES    2

extern const krb5_cc_ops krb5_fcc_ops;
extern const krb5_cc_ops krb5_mcc_ops;

extern const krb5_kt_ops krb5_fkt_ops;
extern const krb5_kt_ops krb5_mkt_ops;
extern const krb5_kt_ops krb5_akf_ops;
extern const krb5_kt_ops krb4_fkt_ops;
extern const krb5_kt_ops krb5_srvtab_fkt_ops;
extern const krb5_kt_ops krb5_any_ops;

#define KRB5_KPASSWD_VERS_CHANGEPW      1
#define KRB5_KPASSWD_VERS_SETPW         0xff80

#define KRB5_KPASSWD_SUCCESS  0
#define KRB5_KPASSWD_MALFORMED      1
#define KRB5_KPASSWD_HARDERROR      2
#define KRB5_KPASSWD_AUTHERROR      3
#define KRB5_KPASSWD_SOFTERROR      4
#define KRB5_KPASSWD_ACCESSDENIED 5
#define KRB5_KPASSWD_BAD_VERSION 6
#define KRB5_KPASSWD_INITIAL_FLAG_NEEDED 7

#define KPASSWD_PORT 464

/* types for the new krbhst interface */
struct krb5_krbhst_data;
typedef struct krb5_krbhst_data *krb5_krbhst_handle;

#define KRB5_KRBHST_KDC       1
#define KRB5_KRBHST_ADMIN     2
#define KRB5_KRBHST_CHANGEPW  3
#define KRB5_KRBHST_KRB524    4

typedef struct krb5_krbhst_info {
    enum { KRB5_KRBHST_UDP,
         KRB5_KRBHST_TCP,
         KRB5_KRBHST_HTTP } proto;
    unsigned short port;
    unsigned short def_port;
    struct addrinfo *ai;
    struct krb5_krbhst_info *next;
    char hostname[1]; /* has to come last */
} krb5_krbhst_info;


struct credentials; /* this is to keep the compiler happy */
struct getargs;
struct sockaddr;

#include <krb5-protos.h>

#endif /* __KRB5_H__ */


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