diff options
Diffstat (limited to 'crypto/heimdal/lib/krb5/rd_rep.c')
| -rw-r--r-- | crypto/heimdal/lib/krb5/rd_rep.c | 135 |
1 files changed, 71 insertions, 64 deletions
diff --git a/crypto/heimdal/lib/krb5/rd_rep.c b/crypto/heimdal/lib/krb5/rd_rep.c index 7f947de..8c9b7bb 100644 --- a/crypto/heimdal/lib/krb5/rd_rep.c +++ b/crypto/heimdal/lib/krb5/rd_rep.c @@ -33,85 +33,92 @@ #include <krb5_locl.h> -RCSID("$Id: rd_rep.c,v 1.22 2001/06/18 02:46:53 assar Exp $"); +RCSID("$Id: rd_rep.c 17890 2006-08-21 09:19:22Z lha $"); -krb5_error_code +krb5_error_code KRB5_LIB_FUNCTION krb5_rd_rep(krb5_context context, krb5_auth_context auth_context, const krb5_data *inbuf, krb5_ap_rep_enc_part **repl) { - krb5_error_code ret; - AP_REP ap_rep; - size_t len; - krb5_data data; - krb5_crypto crypto; + krb5_error_code ret; + AP_REP ap_rep; + size_t len; + krb5_data data; + krb5_crypto crypto; - krb5_data_zero (&data); - ret = 0; + krb5_data_zero (&data); + ret = 0; - ret = decode_AP_REP(inbuf->data, inbuf->length, &ap_rep, &len); - if (ret) - return ret; - if (ap_rep.pvno != 5) { - ret = KRB5KRB_AP_ERR_BADVERSION; - krb5_clear_error_string (context); - goto out; - } - if (ap_rep.msg_type != krb_ap_rep) { - ret = KRB5KRB_AP_ERR_MSG_TYPE; - krb5_clear_error_string (context); - goto out; - } + ret = decode_AP_REP(inbuf->data, inbuf->length, &ap_rep, &len); + if (ret) + return ret; + if (ap_rep.pvno != 5) { + ret = KRB5KRB_AP_ERR_BADVERSION; + krb5_clear_error_string (context); + goto out; + } + if (ap_rep.msg_type != krb_ap_rep) { + ret = KRB5KRB_AP_ERR_MSG_TYPE; + krb5_clear_error_string (context); + goto out; + } - ret = krb5_crypto_init(context, auth_context->keyblock, 0, &crypto); - if (ret) - goto out; - ret = krb5_decrypt_EncryptedData (context, - crypto, - KRB5_KU_AP_REQ_ENC_PART, - &ap_rep.enc_part, - &data); - krb5_crypto_destroy(context, crypto); - if (ret) - goto out; + ret = krb5_crypto_init(context, auth_context->keyblock, 0, &crypto); + if (ret) + goto out; + ret = krb5_decrypt_EncryptedData (context, + crypto, + KRB5_KU_AP_REQ_ENC_PART, + &ap_rep.enc_part, + &data); + krb5_crypto_destroy(context, crypto); + if (ret) + goto out; - *repl = malloc(sizeof(**repl)); - if (*repl == NULL) { - ret = ENOMEM; - krb5_set_error_string (context, "malloc: out of memory"); - goto out; - } - ret = krb5_decode_EncAPRepPart(context, - data.data, - data.length, - *repl, - &len); - if (ret) - return ret; + *repl = malloc(sizeof(**repl)); + if (*repl == NULL) { + ret = ENOMEM; + krb5_set_error_string (context, "malloc: out of memory"); + goto out; + } + ret = krb5_decode_EncAPRepPart(context, + data.data, + data.length, + *repl, + &len); + if (ret) + return ret; - if ((*repl)->ctime != auth_context->authenticator->ctime || - (*repl)->cusec != auth_context->authenticator->cusec) { - ret = KRB5KRB_AP_ERR_MUT_FAIL; - krb5_clear_error_string (context); - goto out; - } - if ((*repl)->seq_number) - krb5_auth_con_setremoteseqnumber(context, auth_context, - *((*repl)->seq_number)); - if ((*repl)->subkey) - krb5_auth_con_setremotesubkey(context, auth_context, (*repl)->subkey); + if (auth_context->flags & KRB5_AUTH_CONTEXT_DO_TIME) { + if ((*repl)->ctime != auth_context->authenticator->ctime || + (*repl)->cusec != auth_context->authenticator->cusec) + { + krb5_free_ap_rep_enc_part(context, *repl); + *repl = NULL; + ret = KRB5KRB_AP_ERR_MUT_FAIL; + krb5_clear_error_string (context); + goto out; + } + } + if ((*repl)->seq_number) + krb5_auth_con_setremoteseqnumber(context, auth_context, + *((*repl)->seq_number)); + if ((*repl)->subkey) + krb5_auth_con_setremotesubkey(context, auth_context, (*repl)->subkey); -out: - krb5_data_free (&data); - free_AP_REP (&ap_rep); - return ret; + out: + krb5_data_free (&data); + free_AP_REP (&ap_rep); + return ret; } -void +void KRB5_LIB_FUNCTION krb5_free_ap_rep_enc_part (krb5_context context, krb5_ap_rep_enc_part *val) { - free_EncAPRepPart (val); - free (val); + if (val) { + free_EncAPRepPart (val); + free (val); + } } |
