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From 65579492d3d545d6acabaedc019c457551c32063 Mon Sep 17 00:00:00 2001
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From: Alexander Bokovoy <abokovoy@redhat.com>
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Date: Mon, 3 Apr 2017 10:29:21 +0300
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Subject: [PATCH] ipaserver/dcerpc: unify error processing
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Samba error code reporting changes from version to version but we also
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did not provide proper input into DCE RPC error processing method we
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have.
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Unify error processing and add few more fallback entries.
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With Samba 4.7 we'll have to change it again because error code
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processing for Samba Python modules will change with introduction of
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samba.ntstatus and samba.werror modules.
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Note that this commit also changes a message returned for error code
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-1073741772 (NT_STATUS_OBJECT_NOT_FOUND) because it is more general one.
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Fixes https://pagure.io/freeipa/issue/6859
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Reviewed-By: Martin Basti <mbasti@redhat.com>
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---
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ipaserver/dcerpc.py | 23 +++++++++++++++++------
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1 file changed, 17 insertions(+), 6 deletions(-)
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diff --git a/ipaserver/dcerpc.py b/ipaserver/dcerpc.py
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index 2d9d7e5577f1cac6f35701dd277199f9a37387f8..d684a17cabe43bbbd43d29f75f534b6e50fccd12 100644
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--- a/ipaserver/dcerpc.py
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+++ b/ipaserver/dcerpc.py
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@@ -117,19 +117,27 @@ dcerpc_error_codes = {
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# we simply will skip the binding
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access_denied_error,
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-1073741772: # NT_STATUS_OBJECT_NAME_NOT_FOUND
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- errors.RemoteRetrieveError(
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- reason=_('CIFS server configuration does not allow '
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- 'access to \\\\pipe\\lsarpc')),
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+ errors.NotFound(
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+ reason=_('Cannot find specified domain or server name')),
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}
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dcerpc_error_messages = {
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"NT_STATUS_OBJECT_NAME_NOT_FOUND":
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errors.NotFound(
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reason=_('Cannot find specified domain or server name')),
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+ "The object name is not found.":
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+ errors.NotFound(
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+ reason=_('Cannot find specified domain or server name')),
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"WERR_NO_LOGON_SERVERS":
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errors.RemoteRetrieveError(
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reason=_('AD DC was unable to reach any IPA domain controller. '
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'Most likely it is a DNS or firewall issue')),
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+ # This is a very long key, don't change it
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+ "There are currently no logon servers available to "
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+ "service the logon request.":
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+ errors.RemoteRetrieveError(
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+ reason=_('AD DC was unable to reach any IPA domain controller. '
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+ 'Most likely it is a DNS or firewall issue')),
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"NT_STATUS_INVALID_PARAMETER_MIX":
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errors.RequirementError(
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name=_('At least the domain or IP address should be specified')),
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@@ -802,7 +810,8 @@ class DomainValidator(object):
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# Both methods should not fail at the same time
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if finddc_error and len(info['gc']) == 0:
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- raise assess_dcerpc_exception(message=str(finddc_error))
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+ num, message = e.args # pylint: disable=unpacking-non-sequence
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+ raise assess_dcerpc_exception(num=num, message=message)
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self._info[domain] = info
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return info
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@@ -908,7 +917,8 @@ class TrustDomainInstance(object):
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else:
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result = netrc.finddc(address=remote_host, flags=flags)
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except RuntimeError as e:
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- raise assess_dcerpc_exception(message=str(e))
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+ num, message = e.args # pylint: disable=unpacking-non-sequence
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+ raise assess_dcerpc_exception(num=num, message=message)
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if not result:
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return False
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@@ -1408,7 +1418,8 @@ def fetch_domains(api, mydomain, trustdomain, creds=None, server=None):
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result = netrc.finddc(domain=trustdomain,
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flags=nbt.NBT_SERVER_LDAP | nbt.NBT_SERVER_DS)
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except RuntimeError as e:
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- raise assess_dcerpc_exception(message=str(e))
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+ num, message = e.args # pylint: disable=unpacking-non-sequence
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+ raise assess_dcerpc_exception(num=num, message=message)
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td.info['dc'] = unicode(result.pdc_dns_name)
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td.info['name'] = unicode(result.dns_domain)
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--
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2.9.3
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