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Pass down canonicalize request to hdb layer, sign client referrals.

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@20242 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2007-02-17 00:04:54 +00:00
parent f8217f8b04
commit 6e6d429311
1 changed files with 75 additions and 6 deletions
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81
kdc/kerberos5.c
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 1997-2006 Kungliga Tekniska H<>gskolan
* Copyright (c) 1997-2007 Kungliga Tekniska H<>gskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
@@ -921,12 +921,16 @@ _kdc_as_rep(krb5_context context,
krb5_crypto crypto;
Key *ckey, *skey;
EncryptionKey *reply_key;
int flags = 0;
#ifdef PKINIT
pk_client_params *pkp = NULL;
#endif
memset(&rep, 0, sizeof(rep));
if (f.canonicalize)
flags |= HDB_F_CANON;
if(b->sname == NULL){
ret = KRB5KRB_ERR_GENERIC;
e_text = "No server in request";
@@ -947,10 +951,23 @@ _kdc_as_rep(krb5_context context,
ret = KRB5KRB_ERR_GENERIC;
e_text = "No client in request";
} else {
_krb5_principalname2krb5_principal (context,
&client_princ,
*(b->cname),
b->realm);
if (b->cname->name_type == KRB5_NT_ENTERPRISE_PRINCIPAL) {
if (b->cname->name_string.len != 1) {
kdc_log(context, config, 0,
"AS-REQ malformed canon request from %s", from);
ret = KRB5_PARSE_MALFORMED;
goto out;
}
ret = krb5_parse_name(context, b->cname->name_string.val[0],
&client_princ);
if (ret)
goto out;
} else
_krb5_principalname2krb5_principal (context,
&client_princ,
*(b->cname),
b->realm);
ret = krb5_unparse_name(context, client_princ, &client_name);
}
if (ret) {
@@ -963,7 +980,7 @@ _kdc_as_rep(krb5_context context,
client_name, from, server_name);
ret = _kdc_db_fetch(context, config, client_princ,
HDB_F_GET_CLIENT, NULL, &client);
HDB_F_GET_CLIENT | flags, NULL, &client);
if(ret){
kdc_log(context, config, 0, "UNKNOWN -- %s: %s", client_name,
krb5_get_err_text(context, ret));
@@ -1533,6 +1550,58 @@ _kdc_as_rep(krb5_context context,
set_salt_padata (rep.padata, ckey->salt);
/* Add signing of alias referral */
if (f.canonicalize) {
PA_ClientCanonicalized canon;
krb5_data data;
PA_DATA pa;
krb5_crypto crypto;
size_t len;
memset(&canon, 0, sizeof(canon));
canon.names.requested_name = *b->cname;
canon.names.real_name = client->entry.principal->name;
ASN1_MALLOC_ENCODE(PA_ClientCanonicalizedNames, data.data, data.length,
&canon.names, &len, ret);
if (ret)
goto out;
if (data.length != len)
krb5_abortx(context, "internal asn.1 error");
/* sign using "returned session key" */
ret = krb5_crypto_init(context, &et.key, 0, &crypto);
if (ret) {
free(data.data);
goto out;
}
ret = krb5_create_checksum(context, crypto,
KRB5_KU_CANONICALIZED_NAMES, 0,
data.data, data.length,
&canon.canon_checksum);
free(data.data);
krb5_crypto_destroy(context, crypto);
if (ret)
return ret;
ASN1_MALLOC_ENCODE(PA_ClientCanonicalized, data.data, data.length,
&canon, &len, ret);
free_Checksum(&canon.canon_checksum);
if (ret)
return ret;
if (data.length != len)
krb5_abortx(context, "internal asn.1 error");
pa.padata_type = KRB5_PADATA_CLIENT_CANONICALIZED;
pa.padata_value = data;
ret = add_METHOD_DATA(rep.padata, &pa);
free(data.data);
if (ret)
return ret;
}
if (rep.padata->len == 0) {
free(rep.padata);
rep.padata = NULL;