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34 #include "krb5_locl.h"
37 _krb5_mk_req_internal(krb5_context context,
38 krb5_auth_context *auth_context,
39 const krb5_flags ap_req_options,
43 krb5_key_usage checksum_usage,
44 krb5_key_usage encrypt_usage)
47 krb5_data authenticator;
53 if(*auth_context == NULL)
54 ret = krb5_auth_con_init(context, auth_context);
59 ret = krb5_auth_con_init(context, &ac);
63 if(ac->local_subkey == NULL && (ap_req_options & AP_OPTS_USE_SUBKEY)) {
64 ret = krb5_auth_con_generatelocalsubkey(context,
71 krb5_free_keyblock(context, ac->keyblock);
72 ret = krb5_copy_keyblock(context, &in_creds->session, &ac->keyblock);
76 /* it's unclear what type of checksum we can use. try the best one, except:
77 * a) if it's configured differently for the current realm, or
78 * b) if the session key is des-cbc-crc
82 if(ac->keyblock->keytype == ETYPE_DES_CBC_CRC) {
83 /* this is to make DCE secd (and older MIT kdcs?) happy */
84 ret = krb5_create_checksum(context,
91 } else if(ac->keyblock->keytype == ETYPE_ARCFOUR_HMAC_MD5 ||
92 ac->keyblock->keytype == ETYPE_ARCFOUR_HMAC_MD5_56 ||
93 ac->keyblock->keytype == ETYPE_DES_CBC_MD4 ||
94 ac->keyblock->keytype == ETYPE_DES_CBC_MD5) {
95 /* this is to make MS kdc happy */
96 ret = krb5_create_checksum(context,
106 ret = krb5_crypto_init(context, ac->keyblock, 0, &crypto);
109 ret = krb5_create_checksum(context,
116 krb5_crypto_destroy(context, crypto);
126 ret = _krb5_build_authenticator(context,
128 ac->keyblock->keytype,
134 free_Checksum (c_opt);
138 ret = krb5_build_ap_req (context, ac->keyblock->keytype,
139 in_creds, ap_req_options, authenticator, outbuf);
141 if(auth_context == NULL)
142 krb5_auth_con_free(context, ac);
146 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
147 krb5_mk_req_extended(krb5_context context,
148 krb5_auth_context *auth_context,
149 const krb5_flags ap_req_options,
151 krb5_creds *in_creds,
154 return _krb5_mk_req_internal (context,
160 KRB5_KU_AP_REQ_AUTH_CKSUM,
161 KRB5_KU_AP_REQ_AUTH);