1 | /*
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2 | samba -- Unix SMB/CIFS implementation.
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3 |
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4 | Client credentials structure
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5 |
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6 | Copyright (C) Jelmer Vernooij 2004-2006
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7 | Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
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8 |
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9 | This program is free software; you can redistribute it and/or modify
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10 | it under the terms of the GNU General Public License as published by
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11 | the Free Software Foundation; either version 3 of the License, or
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12 | (at your option) any later version.
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13 |
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14 | This program is distributed in the hope that it will be useful,
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15 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 | GNU General Public License for more details.
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18 |
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19 | You should have received a copy of the GNU General Public License
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20 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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21 | */
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22 | #ifndef __CREDENTIALS_H__
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23 | #define __CREDENTIALS_H__
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24 |
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25 | #include "../lib/util/time.h"
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26 | #include "../lib/util/data_blob.h"
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27 | #include "librpc/gen_ndr/misc.h"
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28 |
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29 | struct cli_credentials;
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30 | struct ccache_container;
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31 | struct tevent_context;
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32 | struct netlogon_creds_CredentialState;
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33 | struct ldb_context;
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34 | struct ldb_message;
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35 | struct loadparm_context;
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36 | struct ccache_container;
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37 | struct gssapi_creds_container;
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38 | struct smb_krb5_context;
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39 | struct keytab_container;
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40 | struct db_context;
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41 |
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42 | /* In order of priority */
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43 | enum credentials_obtained {
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44 | CRED_UNINITIALISED = 0, /* We don't even have a guess yet */
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45 | CRED_CALLBACK, /* Callback should be used to obtain value */
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46 | CRED_GUESS_ENV, /* Current value should be used, which was guessed */
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47 | CRED_GUESS_FILE, /* A guess from a file (or file pointed at in env variable) */
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48 | CRED_CALLBACK_RESULT, /* Value was obtained from a callback */
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49 | CRED_SPECIFIED /* Was explicitly specified on the command-line */
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50 | };
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51 |
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52 | enum credentials_use_kerberos {
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53 | CRED_AUTO_USE_KERBEROS = 0, /* Default, we try kerberos if available */
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54 | CRED_DONT_USE_KERBEROS, /* Sometimes trying kerberos just does 'bad things', so don't */
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55 | CRED_MUST_USE_KERBEROS /* Sometimes administrators are parinoid, so always do kerberos */
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56 | };
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57 |
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58 | enum credentials_krb_forwardable {
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59 | CRED_AUTO_KRB_FORWARDABLE = 0, /* Default, follow library defaults */
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60 | CRED_NO_KRB_FORWARDABLE, /* not forwardable */
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61 | CRED_FORCE_KRB_FORWARDABLE /* forwardable */
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62 | };
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63 |
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64 | #define CLI_CRED_NTLM2 0x01
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65 | #define CLI_CRED_NTLMv2_AUTH 0x02
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66 | #define CLI_CRED_LANMAN_AUTH 0x04
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67 | #define CLI_CRED_NTLM_AUTH 0x08
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68 | #define CLI_CRED_CLEAR_AUTH 0x10 /* TODO: Push cleartext auth with this flag */
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69 |
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70 | const char *cli_credentials_get_workstation(struct cli_credentials *cred);
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71 | bool cli_credentials_set_workstation(struct cli_credentials *cred,
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72 | const char *val,
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73 | enum credentials_obtained obtained);
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74 | bool cli_credentials_is_anonymous(struct cli_credentials *cred);
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75 | struct cli_credentials *cli_credentials_init(TALLOC_CTX *mem_ctx);
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76 | void cli_credentials_set_anonymous(struct cli_credentials *cred);
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77 | bool cli_credentials_wrong_password(struct cli_credentials *cred);
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78 | const char *cli_credentials_get_password(struct cli_credentials *cred);
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79 | void cli_credentials_get_ntlm_username_domain(struct cli_credentials *cred, TALLOC_CTX *mem_ctx,
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80 | const char **username,
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81 | const char **domain);
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82 | NTSTATUS cli_credentials_get_ntlm_response(struct cli_credentials *cred, TALLOC_CTX *mem_ctx,
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83 | int *flags,
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84 | DATA_BLOB challenge,
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85 | const NTTIME *server_timestamp,
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86 | DATA_BLOB target_info,
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87 | DATA_BLOB *_lm_response, DATA_BLOB *_nt_response,
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88 | DATA_BLOB *_lm_session_key, DATA_BLOB *_session_key);
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89 | const char *cli_credentials_get_realm(struct cli_credentials *cred);
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90 | const char *cli_credentials_get_username(struct cli_credentials *cred);
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91 | int cli_credentials_get_krb5_context(struct cli_credentials *cred,
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92 | struct loadparm_context *lp_ctx,
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93 | struct smb_krb5_context **smb_krb5_context);
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94 | int cli_credentials_get_ccache(struct cli_credentials *cred,
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95 | struct tevent_context *event_ctx,
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96 | struct loadparm_context *lp_ctx,
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97 | struct ccache_container **ccc,
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98 | const char **error_string);
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99 | int cli_credentials_get_named_ccache(struct cli_credentials *cred,
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100 | struct tevent_context *event_ctx,
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101 | struct loadparm_context *lp_ctx,
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102 | char *ccache_name,
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103 | struct ccache_container **ccc, const char **error_string);
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104 | bool cli_credentials_failed_kerberos_login(struct cli_credentials *cred,
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105 | const char *principal,
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106 | unsigned int *count);
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107 | int cli_credentials_get_keytab(struct cli_credentials *cred,
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108 | struct loadparm_context *lp_ctx,
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109 | struct keytab_container **_ktc);
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110 | const char *cli_credentials_get_domain(struct cli_credentials *cred);
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111 | struct netlogon_creds_CredentialState *cli_credentials_get_netlogon_creds(struct cli_credentials *cred);
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112 | void cli_credentials_set_machine_account_pending(struct cli_credentials *cred,
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113 | struct loadparm_context *lp_ctx);
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114 | void cli_credentials_set_conf(struct cli_credentials *cred,
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115 | struct loadparm_context *lp_ctx);
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116 | const char *cli_credentials_get_principal(struct cli_credentials *cred, TALLOC_CTX *mem_ctx);
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117 | int cli_credentials_get_server_gss_creds(struct cli_credentials *cred,
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118 | struct loadparm_context *lp_ctx,
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119 | struct gssapi_creds_container **_gcc);
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120 | int cli_credentials_get_client_gss_creds(struct cli_credentials *cred,
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121 | struct tevent_context *event_ctx,
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122 | struct loadparm_context *lp_ctx,
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123 | struct gssapi_creds_container **_gcc,
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124 | const char **error_string);
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125 | void cli_credentials_set_forced_sasl_mech(struct cli_credentials *creds,
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126 | const char *sasl_mech);
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127 | void cli_credentials_set_kerberos_state(struct cli_credentials *creds,
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128 | enum credentials_use_kerberos use_kerberos);
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129 | void cli_credentials_set_krb_forwardable(struct cli_credentials *creds,
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130 | enum credentials_krb_forwardable krb_forwardable);
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131 | bool cli_credentials_set_domain(struct cli_credentials *cred,
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132 | const char *val,
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133 | enum credentials_obtained obtained);
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134 | bool cli_credentials_set_domain_callback(struct cli_credentials *cred,
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135 | const char *(*domain_cb) (struct cli_credentials *));
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136 | bool cli_credentials_set_username(struct cli_credentials *cred,
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137 | const char *val, enum credentials_obtained obtained);
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138 | bool cli_credentials_set_username_callback(struct cli_credentials *cred,
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139 | const char *(*username_cb) (struct cli_credentials *));
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140 | bool cli_credentials_set_principal(struct cli_credentials *cred,
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141 | const char *val,
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142 | enum credentials_obtained obtained);
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143 | bool cli_credentials_set_principal_callback(struct cli_credentials *cred,
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144 | const char *(*principal_cb) (struct cli_credentials *));
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145 | bool cli_credentials_set_password(struct cli_credentials *cred,
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146 | const char *val,
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147 | enum credentials_obtained obtained);
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148 | struct cli_credentials *cli_credentials_init_anon(TALLOC_CTX *mem_ctx);
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149 | void cli_credentials_parse_string(struct cli_credentials *credentials, const char *data, enum credentials_obtained obtained);
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150 | struct samr_Password *cli_credentials_get_nt_hash(struct cli_credentials *cred,
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151 | TALLOC_CTX *mem_ctx);
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152 | struct samr_Password *cli_credentials_get_old_nt_hash(struct cli_credentials *cred,
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153 | TALLOC_CTX *mem_ctx);
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154 | bool cli_credentials_set_realm(struct cli_credentials *cred,
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155 | const char *val,
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156 | enum credentials_obtained obtained);
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157 | void cli_credentials_set_secure_channel_type(struct cli_credentials *cred,
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158 | enum netr_SchannelType secure_channel_type);
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159 | void cli_credentials_set_password_last_changed_time(struct cli_credentials *cred,
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160 | time_t last_change_time);
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161 | void cli_credentials_set_netlogon_creds(struct cli_credentials *cred,
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162 | struct netlogon_creds_CredentialState *netlogon_creds);
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163 | NTSTATUS cli_credentials_set_krb5_context(struct cli_credentials *cred,
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164 | struct smb_krb5_context *smb_krb5_context);
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165 | NTSTATUS cli_credentials_set_stored_principal(struct cli_credentials *cred,
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166 | struct loadparm_context *lp_ctx,
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167 | const char *serviceprincipal);
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168 | NTSTATUS cli_credentials_set_machine_account(struct cli_credentials *cred,
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169 | struct loadparm_context *lp_ctx);
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170 | /**
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171 | * Fill in credentials for the machine trust account, from the
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172 | * secrets.ldb or passed in handle to secrets.tdb (perhaps in CTDB).
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173 | *
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174 | * This version is used in parts of the code that can link in the
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175 | * CTDB dbwrap backend, by passing down the already open handle.
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176 | *
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177 | * @param cred Credentials structure to fill in
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178 | * @param db_ctx dbwrap context for secrets.tdb
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179 | * @retval NTSTATUS error detailing any failure
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180 | */
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181 | NTSTATUS cli_credentials_set_machine_account_db_ctx(struct cli_credentials *cred,
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182 | struct loadparm_context *lp_ctx,
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183 | struct db_context *db_ctx);
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184 |
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185 | bool cli_credentials_authentication_requested(struct cli_credentials *cred);
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186 | void cli_credentials_guess(struct cli_credentials *cred,
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187 | struct loadparm_context *lp_ctx);
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188 | bool cli_credentials_set_bind_dn(struct cli_credentials *cred,
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189 | const char *bind_dn);
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190 | const char *cli_credentials_get_bind_dn(struct cli_credentials *cred);
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191 | bool cli_credentials_parse_file(struct cli_credentials *cred, const char *file, enum credentials_obtained obtained);
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192 | const char *cli_credentials_get_unparsed_name(struct cli_credentials *credentials, TALLOC_CTX *mem_ctx);
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193 | bool cli_credentials_set_password_callback(struct cli_credentials *cred,
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194 | const char *(*password_cb) (struct cli_credentials *));
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195 | enum netr_SchannelType cli_credentials_get_secure_channel_type(struct cli_credentials *cred);
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196 | time_t cli_credentials_get_password_last_changed_time(struct cli_credentials *cred);
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197 | void cli_credentials_set_kvno(struct cli_credentials *cred,
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198 | int kvno);
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199 | bool cli_credentials_set_utf16_password(struct cli_credentials *cred,
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200 | const DATA_BLOB *password_utf16,
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201 | enum credentials_obtained obtained);
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202 | bool cli_credentials_set_old_utf16_password(struct cli_credentials *cred,
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203 | const DATA_BLOB *password_utf16);
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204 | bool cli_credentials_set_nt_hash(struct cli_credentials *cred,
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205 | const struct samr_Password *nt_hash,
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206 | enum credentials_obtained obtained);
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207 | bool cli_credentials_set_old_nt_hash(struct cli_credentials *cred,
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208 | const struct samr_Password *nt_hash);
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209 | bool cli_credentials_set_ntlm_response(struct cli_credentials *cred,
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210 | const DATA_BLOB *lm_response,
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211 | const DATA_BLOB *nt_response,
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212 | enum credentials_obtained obtained);
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213 | int cli_credentials_set_keytab_name(struct cli_credentials *cred,
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214 | struct loadparm_context *lp_ctx,
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215 | const char *keytab_name,
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216 | enum credentials_obtained obtained);
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217 | void cli_credentials_set_gensec_features(struct cli_credentials *creds, uint32_t gensec_features);
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218 | uint32_t cli_credentials_get_gensec_features(struct cli_credentials *creds);
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219 | int cli_credentials_set_ccache(struct cli_credentials *cred,
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220 | struct loadparm_context *lp_ctx,
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221 | const char *name,
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222 | enum credentials_obtained obtained,
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223 | const char **error_string);
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224 | bool cli_credentials_parse_password_file(struct cli_credentials *credentials, const char *file, enum credentials_obtained obtained);
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225 | bool cli_credentials_parse_password_fd(struct cli_credentials *credentials,
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226 | int fd, enum credentials_obtained obtained);
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227 | void cli_credentials_invalidate_ccache(struct cli_credentials *cred,
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228 | enum credentials_obtained obtained);
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229 | void cli_credentials_set_salt_principal(struct cli_credentials *cred, const char *principal);
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230 | void cli_credentials_set_impersonate_principal(struct cli_credentials *cred,
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231 | const char *principal,
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232 | const char *self_service);
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233 | void cli_credentials_set_target_service(struct cli_credentials *cred, const char *principal);
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234 | const char *cli_credentials_get_salt_principal(struct cli_credentials *cred);
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235 | const char *cli_credentials_get_impersonate_principal(struct cli_credentials *cred);
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236 | const char *cli_credentials_get_self_service(struct cli_credentials *cred);
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237 | const char *cli_credentials_get_target_service(struct cli_credentials *cred);
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238 | enum credentials_use_kerberos cli_credentials_get_kerberos_state(struct cli_credentials *creds);
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239 | const char *cli_credentials_get_forced_sasl_mech(struct cli_credentials *cred);
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240 | enum credentials_krb_forwardable cli_credentials_get_krb_forwardable(struct cli_credentials *creds);
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241 | NTSTATUS cli_credentials_set_secrets(struct cli_credentials *cred,
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242 | struct loadparm_context *lp_ctx,
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243 | struct ldb_context *ldb,
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244 | const char *base,
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245 | const char *filter,
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246 | char **error_string);
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247 | int cli_credentials_get_kvno(struct cli_credentials *cred);
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248 |
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249 | bool cli_credentials_set_username_callback(struct cli_credentials *cred,
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250 | const char *(*username_cb) (struct cli_credentials *));
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251 |
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252 | /**
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253 | * Obtain the client principal for this credentials context.
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254 | * @param cred credentials context
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255 | * @retval The username set on this context.
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256 | * @note Return value will never be NULL except by programmer error.
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257 | */
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258 | const char *cli_credentials_get_principal_and_obtained(struct cli_credentials *cred, TALLOC_CTX *mem_ctx, enum credentials_obtained *obtained);
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259 | bool cli_credentials_set_principal(struct cli_credentials *cred,
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260 | const char *val,
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261 | enum credentials_obtained obtained);
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262 | bool cli_credentials_set_principal_callback(struct cli_credentials *cred,
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263 | const char *(*principal_cb) (struct cli_credentials *));
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264 |
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265 | /**
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266 | * Obtain the 'old' password for this credentials context (used for join accounts).
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267 | * @param cred credentials context
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268 | * @retval If set, the cleartext password, otherwise NULL
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269 | */
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270 | const char *cli_credentials_get_old_password(struct cli_credentials *cred);
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271 | bool cli_credentials_set_old_password(struct cli_credentials *cred,
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272 | const char *val,
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273 | enum credentials_obtained obtained);
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274 | bool cli_credentials_set_domain_callback(struct cli_credentials *cred,
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275 | const char *(*domain_cb) (struct cli_credentials *));
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276 | bool cli_credentials_set_realm_callback(struct cli_credentials *cred,
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277 | const char *(*realm_cb) (struct cli_credentials *));
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278 | bool cli_credentials_set_workstation_callback(struct cli_credentials *cred,
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279 | const char *(*workstation_cb) (struct cli_credentials *));
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280 |
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281 | void cli_credentials_set_callback_data(struct cli_credentials *cred,
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282 | void *callback_data);
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283 | void *_cli_credentials_callback_data(struct cli_credentials *cred);
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284 | #define cli_credentials_callback_data(_cred, _type) \
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285 | talloc_get_type_abort(_cli_credentials_callback_data(_cred), _type)
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286 | #define cli_credentials_callback_data_void(_cred) \
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287 | _cli_credentials_callback_data(_cred)
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288 |
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289 | struct cli_credentials *cli_credentials_shallow_copy(TALLOC_CTX *mem_ctx,
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290 | struct cli_credentials *src);
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291 |
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292 | /**
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293 | * Return attached NETLOGON credentials
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294 | */
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295 | struct netlogon_creds_CredentialState *cli_credentials_get_netlogon_creds(struct cli_credentials *cred);
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296 |
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297 | #endif /* __CREDENTIALS_H__ */
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