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-rw-r--r--source3/libads/kerberos_verify.c60
1 files changed, 45 insertions, 15 deletions
diff --git a/source3/libads/kerberos_verify.c b/source3/libads/kerberos_verify.c
index 268326fca9..c1402b1370 100644
--- a/source3/libads/kerberos_verify.c
+++ b/source3/libads/kerberos_verify.c
@@ -36,13 +36,17 @@ NTSTATUS ads_verify_ticket(ADS_STRUCT *ads, const DATA_BLOB *ticket,
krb5_keytab keytab = NULL;
krb5_data packet;
krb5_ticket *tkt = NULL;
- int ret;
+ krb5_data salt;
+ krb5_encrypt_block eblock;
+ int ret, i;
krb5_keyblock * key;
krb5_principal host_princ;
char *host_princ_s;
fstring myname;
char *password_s;
krb5_data password;
+ krb5_enctype *enctypes = NULL;
+ BOOL auth_ok = False;
if (!secrets_init()) {
DEBUG(1,("secrets_init failed\n"));
@@ -67,7 +71,6 @@ NTSTATUS ads_verify_ticket(ADS_STRUCT *ads, const DATA_BLOB *ticket,
ret = krb5_set_default_realm(context, ads->auth.realm);
if (ret) {
DEBUG(1,("krb5_set_default_realm failed (%s)\n", error_message(ret)));
- ads_destroy(&ads);
return NT_STATUS_LOGON_FAILURE;
}
@@ -89,32 +92,59 @@ NTSTATUS ads_verify_ticket(ADS_STRUCT *ads, const DATA_BLOB *ticket,
return NT_STATUS_LOGON_FAILURE;
}
+ ret = krb5_principal2salt(context, host_princ, &salt);
+ if (ret) {
+ DEBUG(1,("krb5_principal2salt failed (%s)\n", error_message(ret)));
+ return NT_STATUS_LOGON_FAILURE;
+ }
+
if (!(key = (krb5_keyblock *)malloc(sizeof(*key)))) {
return NT_STATUS_NO_MEMORY;
}
- if (create_kerberos_key_from_string(context, host_princ, &password, key)) {
- SAFE_FREE(key);
+ if ((ret = krb5_get_permitted_enctypes(context, &enctypes))) {
+ DEBUG(1,("krb5_get_permitted_enctypes failed (%s)\n",
+ error_message(ret)));
return NT_STATUS_LOGON_FAILURE;
}
-
- krb5_auth_con_setuseruserkey(context, auth_context, key);
- packet.length = ticket->length;
- packet.data = (krb5_pointer)ticket->data;
+ /* we need to setup a auth context with each possible encoding type in turn */
+ for (i=0;enctypes[i];i++) {
+ krb5_use_enctype(context, &eblock, enctypes[i]);
-#if 0
- file_save("/tmp/ticket.dat", ticket->data, ticket->length);
-#endif
+ ret = krb5_string_to_key(context, &eblock, key, &password, &salt);
+ if (ret) {
+ continue;
+ }
+
+ krb5_auth_con_setuseruserkey(context, auth_context, key);
- if ((ret = krb5_rd_req(context, &auth_context, &packet,
- NULL, keytab, NULL, &tkt))) {
+ packet.length = ticket->length;
+ packet.data = (krb5_pointer)ticket->data;
+
+ if (!(ret = krb5_rd_req(context, &auth_context, &packet,
+ NULL, keytab, NULL, &tkt))) {
+ krb5_free_ktypes(context, enctypes);
+ auth_ok = True;
+ break;
+ }
+ }
+
+ if (!auth_ok) {
DEBUG(3,("krb5_rd_req with auth failed (%s)\n",
error_message(ret)));
return NT_STATUS_LOGON_FAILURE;
}
- get_auth_data_from_tkt(auth_data, tkt);
+#if 0
+ file_save("/tmp/ticket.dat", ticket->data, ticket->length);
+#endif
+
+
+ if (tkt->enc_part2) {
+ *auth_data = data_blob(tkt->enc_part2->authorization_data[0]->contents,
+ tkt->enc_part2->authorization_data[0]->length);
+ }
#if 0
if (tkt->enc_part2) {
@@ -124,7 +154,7 @@ NTSTATUS ads_verify_ticket(ADS_STRUCT *ads, const DATA_BLOB *ticket,
}
#endif
- if ((ret = krb5_unparse_name(context, get_principal_from_tkt(tkt), principal))) {
+ if ((ret = krb5_unparse_name(context, tkt->enc_part2->client, principal))) {
DEBUG(3,("krb5_unparse_name failed (%s)\n",
error_message(ret)));
return NT_STATUS_LOGON_FAILURE;