source4/auth/kerberos/kerberos.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3    simple kerberos5 routines for active directory
   4    Copyright (C) Andrew Tridgell 2001
   5    Copyright (C) Luke Howard 2002-2003
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #if defined(HAVE_KRB5)
  23
  24 #if defined(HAVE_KRB5_INITLOG) && defined(HAVE_KRB5_ADDLOG_FUNC) && defined (HAVE_KRB5_SET_WARN_DEST) && defined(HAVE_KRB5_LOG_FACILITY)
  25 #define HAVE_KRB5_LOG_CONTROL
  26 #else
  27 #undef HAVE_KRB5_LOG_CONTROL
  28 #endif
  29
  30 struct smb_krb5_context {
  31         krb5_context krb5_context;
  32 #ifdef HAVE_KRB5_LOG_CONTROL
  33         krb5_log_facility *logf;
  34 #endif
  35 };
  36
  37
  38 /* not really ASN.1, but RFC 1964 */
  39 #define TOK_ID_KRB_AP_REQ       "\x01\x00"
  40 #define TOK_ID_KRB_AP_REP       "\x02\x00"
  41 #define TOK_ID_KRB_ERROR        "\x03\x00"
  42 #define TOK_ID_GSS_GETMIC       "\x01\x01"
  43 #define TOK_ID_GSS_WRAP         "\x02\x01"
  44
  45 #ifdef HAVE_KRB5_KEYBLOCK_KEYVALUE
  46 #define KRB5_KEY_TYPE(k)        ((k)->keytype)
  47 #define KRB5_KEY_LENGTH(k)      ((k)->keyvalue.length)
  48 #define KRB5_KEY_DATA(k)        ((k)->keyvalue.data)
  49 #else
  50 #define KRB5_KEY_TYPE(k)        ((k)->enctype)
  51 #define KRB5_KEY_LENGTH(k)      ((k)->length)
  52 #define KRB5_KEY_DATA(k)        ((k)->contents)
  53 #endif /* HAVE_KRB5_KEYBLOCK_KEYVALUE */
  54
  55 #ifndef HAVE_KRB5_SET_REAL_TIME
  56 krb5_error_code krb5_set_real_time(krb5_context context, int32_t seconds, int32_t microseconds);
  57 #endif
  58
  59 #ifndef HAVE_KRB5_SET_DEFAULT_TGS_KTYPES
  60 krb5_error_code krb5_set_default_tgs_ktypes(krb5_context ctx, const krb5_enctype *enc);
  61 #endif
  62
  63 #if defined(HAVE_KRB5_AUTH_CON_SETKEY) && !defined(HAVE_KRB5_AUTH_CON_SETUSERUSERKEY)
  64 krb5_error_code krb5_auth_con_setuseruserkey(krb5_context context, krb5_auth_context auth_context, krb5_keyblock *keyblock);
  65 #endif
  66
  67 #ifndef HAVE_KRB5_FREE_UNPARSED_NAME
  68 void krb5_free_unparsed_name(krb5_context ctx, char *val);
  69 #endif
  70
  71 #if defined(HAVE_KRB5_PRINCIPAL_GET_COMP_STRING) && !defined(HAVE_KRB5_PRINC_COMPONENT)
  72 const krb5_data *krb5_princ_component(krb5_context context, krb5_principal principal, int i );
  73 #endif
  74
  75 /* Samba wrapper function for krb5 functionality. */
  76 void setup_kaddr( krb5_address *pkaddr, struct sockaddr *paddr);
  77 int create_kerberos_key_from_string(krb5_context context, krb5_principal host_princ, krb5_data *password, krb5_keyblock *key, krb5_enctype enctype);
  78 int create_kerberos_key_from_string_direct(krb5_context context, krb5_principal host_princ, krb5_data *password, krb5_keyblock *key, krb5_enctype enctype);
  79 krb5_const_principal get_principal_from_tkt(krb5_ticket *tkt);
  80 krb5_error_code krb5_locate_kdc(krb5_context ctx, const krb5_data *realm, struct sockaddr **addr_pp, int *naddrs, int get_masters);
  81 krb5_error_code get_kerberos_allowed_etypes(krb5_context context, krb5_enctype **enctypes);
  82 void free_kerberos_etypes(krb5_context context, krb5_enctype *enctypes);
  83 BOOL get_krb5_smb_session_key(krb5_context context, krb5_auth_context auth_context, DATA_BLOB *session_key, BOOL remote);
  84 krb5_error_code ads_krb5_mk_req(krb5_context context,
  85                                 krb5_auth_context *auth_context,
  86                                 const krb5_flags ap_req_options,
  87                                 const char *principal,
  88                                 krb5_ccache ccache,
  89                                 krb5_data *outbuf);
  90 DATA_BLOB get_auth_data_from_tkt(TALLOC_CTX *mem_ctx,
  91                                  krb5_ticket *tkt);
  92
  93 NTSTATUS ads_verify_ticket(TALLOC_CTX *mem_ctx,
  94                            struct smb_krb5_context *smb_krb5_context,
  95                            krb5_auth_context auth_context,
  96                            const char *realm, const char *service,
  97                            const DATA_BLOB *ticket,
  98                            char **principal, DATA_BLOB *auth_data,
  99                            DATA_BLOB *ap_rep,
 100                            krb5_keyblock *keyblock);
 101 int kerberos_kinit_password_cc(krb5_context ctx, krb5_ccache cc,
 102                                const char *principal, const char *password,
 103                                time_t *expire_time, time_t *kdc_time);
 104 krb5_principal kerberos_fetch_salt_princ_for_host_princ(krb5_context context,
 105                                                         krb5_principal host_princ,
 106                                                         int enctype);
 107 void kerberos_set_creds_enctype(krb5_creds *pcreds, int enctype);
 108 BOOL kerberos_compatible_enctypes(krb5_context context, krb5_enctype enctype1, krb5_enctype enctype2);
 109 void kerberos_free_data_contents(krb5_context context, krb5_data *pdata);
 110 krb5_error_code smb_krb5_kt_free_entry(krb5_context context, krb5_keytab_entry *kt_entry);
 111 char *smb_get_krb5_error_message(krb5_context context, krb5_error_code code, TALLOC_CTX *mem_ctx);
 112 NTSTATUS kinit_to_ccache(TALLOC_CTX *parent_ctx,
 113                           struct cli_credentials *credentials,
 114                           struct smb_krb5_context *smb_krb5_context,
 115                           krb5_ccache *ccache,
 116                           const char **ccache_name);
 117 krb5_error_code smb_krb5_init_context(TALLOC_CTX *parent_ctx,
 118                                       struct smb_krb5_context **smb_krb5_context);
 119 krb5_error_code salt_principal_from_credentials(TALLOC_CTX *parent_ctx,
 120                                                 struct cli_credentials *machine_account,
 121                                                 struct smb_krb5_context *smb_krb5_context,
 122                                                 krb5_principal *salt_princ);
 123 NTSTATUS create_memory_keytab(TALLOC_CTX *parent_ctx,
 124                               struct cli_credentials *machine_account,
 125                               struct smb_krb5_context *smb_krb5_context,
 126                               krb5_keytab *keytab);
 127 #endif /* HAVE_KRB5 */
 128