798 lines
19 KiB
C++
798 lines
19 KiB
C++
// Copyright (C) 2000 Microsoft Corporation
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//
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// Non-domain Naming Context checking code
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//
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// 13 July 2000 sburns, from code supplied by jeffparh
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#include "headers.hxx"
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#include "state.hpp"
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#include "resource.h"
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#include "NonDomainNc.hpp"
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#ifdef LOGGING_BUILD
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#define LOG_LDAP(msg, ldap) LOG(msg); LOG(String::format(L"LDAP error %1!ld!", (ldap)))
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#else
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#define LOG_LDAP(msg, ldap)
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#endif
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HRESULT
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LdapToHresult(int ldapError)
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{
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// CODEWORK: I'm told that ldap_get_option for LDAP_OPT_SERVER_ERROR or
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// LDAP_OPT_SERVER_EXT_ERROR (or perhaps LDAP_OPT_ERROR_STRING?) will give
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// an error result with "higher fidelity"
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return Win32ToHresult(::LdapMapErrorToWin32(ldapError));
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}
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// provided by jeffparh
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DWORD
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IsLastReplicaOfNC(
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IN LDAP * hld,
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IN LPWSTR pszConfigNC,
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IN LPWSTR pszNC,
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IN LPWSTR pszNtdsDsaDN,
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OUT BOOL * pfIsLastReplica
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)
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/*++
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Routine Description:
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Determine whether any DSAs other than that with DN pszNtdsDsaDN hold
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replicas of a particular NC.
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Arguments:
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hld (IN) - LDAP handle to execute search with.
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pszConfigNC (IN) - DN of the config NC. Used as a base for the search.
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pszNC (IN) - NC for which to check for other replicas.
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pszNtdsDsaDN (IN) - DN of the DSA object known to currently have a replica
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of the NC. We are specifically looking for replicas *other than* this
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one.
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pfIsLastReplica (OUT) - On successful return, TRUE iff no DSAs hold replicas
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of pszNC other than that with DN pszNtdsDsaDN.
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Return Values:
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Win error.
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--*/
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{
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LOG_FUNCTION2(IsLastReplicaOfNC, pszNC ? pszNC : L"(null)");
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ASSERT(hld);
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ASSERT(pszConfigNC);
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ASSERT(pszNC);
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ASSERT(pszNtdsDsaDN);
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ASSERT(pfIsLastReplica);
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if (
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!hld
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|| !pszConfigNC
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|| !pszNC
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|| !pszNtdsDsaDN
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|| !pfIsLastReplica)
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{
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return ERROR_INVALID_PARAMETER;
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}
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// Just checking for existence -- don't really want any attributes
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// returned.
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static LPWSTR rgpszDsaAttrsToRead[] = {
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L"__invalid_attribute_name__",
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NULL
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};
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static WCHAR szFilterFormat[]
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= L"(&(objectCategory=ntdsDsa)(hasMasterNCs=%ls)(!(distinguishedName=%ls)))";
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*pfIsLastReplica = TRUE;
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int ldStatus = 0;
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DWORD err = 0;
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LDAPMessage * pDsaResults = NULL;
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LDAPMessage * pDsaEntry = NULL;
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size_t cchFilter;
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PWSTR pszFilter;
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LDAP_TIMEVAL lTimeout = {3*60, 0}; // three minutes
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do
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{
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cchFilter = sizeof(szFilterFormat) / sizeof(*szFilterFormat)
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+ wcslen(pszNtdsDsaDN)
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+ wcslen(pszNC);
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pszFilter = (PWSTR) new BYTE[sizeof(WCHAR) * cchFilter];
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swprintf(pszFilter, szFilterFormat, pszNC, pszNtdsDsaDN);
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// Search config NC for any ntdsDsa object that hosts this NC other
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// than that with dn pszNtdsDsaDN. Note that we cap the search at one
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// returned object -- we're not really trying to enumerate, just
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// checking for existence.
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ldStatus = ldap_search_ext_sW(hld, pszConfigNC, LDAP_SCOPE_SUBTREE,
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pszFilter, rgpszDsaAttrsToRead, 0,
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NULL, NULL, &lTimeout, 1, &pDsaResults);
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if (pDsaResults)
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{
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// Ignore any error (such as LDAP_SIZELIMIT_EXCEEDED) when the
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// search returns results.
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ldStatus = 0;
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pDsaEntry = ldap_first_entry(hld, pDsaResults);
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*pfIsLastReplica = (NULL == pDsaEntry);
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} else if (ldStatus)
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{
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// Search failed and returned no results.
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LOG_LDAP(L"Config NC search failed", ldStatus);
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break;
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} else
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{
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// No error, no results. This shouldn't happen.
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LOG("ldap_search_ext_sW returned no results and no error!");
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ASSERT(false);
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}
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}
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while (0);
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if (NULL != pDsaResults) {
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ldap_msgfree(pDsaResults);
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}
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if (pszFilter)
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{
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delete[] pszFilter;
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}
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if (!err && ldStatus) {
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err = LdapMapErrorToWin32(ldStatus);
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}
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return err;
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}
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// S_OK if this machine (the localhost) is the last replica of at least one
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// non-domain NC, S_FALSE if not, or error otherwise. If S_OK, then the
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// StringList will contain the DNs of the non domain NCs for which this
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// machine is the last replica.
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//
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// based on code from jeffparh
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//
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// hld (IN) - LDAP handle bound to DSA to evaluate.
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//
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// result (OUT) - string list to receive DNs of the non-domain NCs.
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HRESULT
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IsLastNdncReplica(LDAP* hld, StringList& result)
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{
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LOG_FUNCTION(IsLastNdncReplica);
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ASSERT(hld);
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ASSERT(result.empty());
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HRESULT hr = S_FALSE;
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LDAPMessage* rootResults = 0;
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PWSTR* configNc = 0;
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PWSTR* schemaNc = 0;
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PWSTR* domainNc = 0;
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PWSTR* masterNcs = 0;
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PWSTR* ntdsDsaDn = 0;
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do
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{
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// Gather basic rootDSE info.
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static PWSTR ROOT_ATTRS_TO_READ[] =
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{
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LDAP_OPATT_NAMING_CONTEXTS_W,
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LDAP_OPATT_DEFAULT_NAMING_CONTEXT_W,
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LDAP_OPATT_CONFIG_NAMING_CONTEXT_W,
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LDAP_OPATT_SCHEMA_NAMING_CONTEXT_W,
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LDAP_OPATT_DS_SERVICE_NAME_W,
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0
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};
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LOG(L"Calling ldap_search_s");
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int ldStatus =
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ldap_search_sW(
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hld,
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0,
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LDAP_SCOPE_BASE,
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L"(objectClass=*)",
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ROOT_ATTRS_TO_READ,
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0,
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&rootResults);
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if (ldStatus)
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{
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LOG_LDAP(L"RootDSE search failed", ldStatus);
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hr = LdapToHresult(ldStatus);
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break;
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}
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configNc = ldap_get_valuesW(hld, rootResults, LDAP_OPATT_CONFIG_NAMING_CONTEXT_W);
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schemaNc = ldap_get_valuesW(hld, rootResults, LDAP_OPATT_SCHEMA_NAMING_CONTEXT_W);
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domainNc = ldap_get_valuesW(hld, rootResults, LDAP_OPATT_DEFAULT_NAMING_CONTEXT_W);
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masterNcs = ldap_get_valuesW(hld, rootResults, LDAP_OPATT_NAMING_CONTEXTS_W);
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ntdsDsaDn = ldap_get_valuesW(hld, rootResults, LDAP_OPATT_DS_SERVICE_NAME_W);
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if (
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(0 == configNc)
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|| (0 == schemaNc)
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|| (0 == domainNc)
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|| (0 == masterNcs)
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|| (0 == ntdsDsaDn))
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{
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LOG(L"Can't find key rootDSE attributes!");
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hr = Win32ToHresult(ERROR_DS_UNAVAILABLE);
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break;
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}
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// There is only one value for each of these attributes...
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ASSERT(1 == ldap_count_valuesW(configNc));
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ASSERT(1 == ldap_count_valuesW(schemaNc));
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ASSERT(1 == ldap_count_valuesW(domainNc));
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ASSERT(1 == ldap_count_valuesW(ntdsDsaDn));
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DWORD masterNcCount = ldap_count_valuesW(masterNcs);
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LOG(String::format(L"masterNcCount = %1!d!", masterNcCount));
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// '3' => 1 nc for config, 1 nc for schema, 1 nc for this DC's own
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// domain.
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if (masterNcCount <= 3)
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{
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// DSA holds no master NCs other than config, schema, and its own
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// domain. Thus, it is not the last replica of any NDNC.
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LOG(L"This dsa holds no master NCs other than config, schema, and domain");
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ASSERT(3 == masterNcCount);
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ASSERT(0 == ldStatus);
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ASSERT(hr == S_FALSE);
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break;
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}
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// Loop through non-config/schema/domain NCs to determine those for
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// which the DSA is the last replica.
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for (int i = 0; 0 != masterNcs[i]; ++i)
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{
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PWSTR nc = masterNcs[i];
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LOG(L"Evaluating " + String(nc));
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if (
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(0 != wcscmp(nc, *configNc))
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&& (0 != wcscmp(nc, *schemaNc))
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&& (0 != wcscmp(nc, *domainNc)))
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{
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// A non-config/schema/domain NC.
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LOG(L"Calling IsLastReplicaOfNC on " + String(nc));
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BOOL isLastReplica = FALSE;
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DWORD err =
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IsLastReplicaOfNC(
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hld,
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*configNc,
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nc,
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*ntdsDsaDn,
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&isLastReplica);
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if (err)
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{
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LOG(L"IsLastReplicaOfNC() failed");
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hr = Win32ToHresult(err);
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break;
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}
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if (isLastReplica)
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{
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// This DSA is indeed the last replica of this particular
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// NC. Return the DN of this NC to our caller.
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LOG(L"last replica of " + String(nc));
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result.push_back(nc);
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}
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else
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{
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LOG(L"not last replica of " + String(nc));
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}
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}
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}
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// If we broke out of the prior loop with an error, jump out to the
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// cleanup section.
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BREAK_ON_FAILED_HRESULT(hr);
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hr = result.size() > 0 ? S_OK : S_FALSE;
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}
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while (0);
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if (rootResults)
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{
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ldap_msgfree(rootResults);
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}
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if (0 != configNc)
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{
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ldap_value_freeW(configNc);
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}
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if (0 != schemaNc)
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{
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ldap_value_freeW(schemaNc);
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}
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if (0 != domainNc)
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{
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ldap_value_freeW(domainNc);
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}
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if (0 != masterNcs)
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{
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ldap_value_freeW(masterNcs);
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}
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if (0 != ntdsDsaDn)
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{
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ldap_value_freeW(ntdsDsaDn);
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}
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#ifdef LOGGING_BUILD
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LOG_HRESULT(hr);
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for (
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StringList::iterator i = result.begin();
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i != result.end();
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++i)
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{
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LOG(*i);
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}
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#endif
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return hr;
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}
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// S_OK if this machine (the localhost) is the last replica of at least one
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// non-domain NC, S_FALSE if not, or error otherwise.
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//
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// result - If S_OK is returned, receives the DNs of the non domain NCs for
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// which this machine is the last replica. Should be empty on entry.
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HRESULT
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IsLastNonDomainNamingContextReplica(StringList& result)
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{
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LOG_FUNCTION(IsLastNonDomainNamingContextReplica);
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ASSERT(result.empty());
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result.clear();
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HRESULT hr = S_FALSE;
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LDAP* hld = 0;
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do
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{
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// Connect to target DSA.
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LOG(L"Calling ldap_open");
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hld = ldap_openW(L"localhost", LDAP_PORT);
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if (!hld)
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{
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LOG("Cannot open LDAP connection to localhost");
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hr = Win32ToHresult(ERROR_DS_UNAVAILABLE);
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break;
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}
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// Bind using logged-in user's credentials.
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int ldStatus = ldap_bind_s(hld, 0, 0, LDAP_AUTH_NEGOTIATE);
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if (ldStatus)
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{
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LOG_LDAP(L"LDAP bind failed", ldStatus);
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hr = LdapToHresult(ldStatus);
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break;
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}
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// go do the real work
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hr = IsLastNdncReplica(hld, result);
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}
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while (0);
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if (hld)
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{
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ldap_unbind(hld);
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}
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LOG_HRESULT(hr);
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return hr;
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}
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static const DWORD HELP_MAP[] =
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{
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0, 0
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};
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NonDomainNcErrorDialog::NonDomainNcErrorDialog(StringList& ndncList_)
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:
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Dialog(IDD_NON_DOMAIN_NC_ERROR, HELP_MAP),
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ndncList(ndncList_),
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warnIcon(0)
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{
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LOG_CTOR(NonDomainNcErrorDialog);
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ASSERT(ndncList.size());
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}
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NonDomainNcErrorDialog::~NonDomainNcErrorDialog()
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{
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LOG_DTOR(NonDomainNcErrorDialog);
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if (warnIcon)
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{
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Win::DestroyIcon(warnIcon);
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}
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}
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void
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NonDomainNcErrorDialog::OnInit()
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{
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LOG_FUNCTION(NonDomainNcErrorDialog::OnInit);
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// set the warning icon NTRAID#NTBUG9-239678-2000/11/28-sburns
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HRESULT hr = Win::LoadImage(IDI_WARN, warnIcon);
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ASSERT(SUCCEEDED(hr));
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Win::SendMessage(
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Win::GetDlgItem(hwnd, IDC_WARNING_ICON),
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STM_SETICON,
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reinterpret_cast<WPARAM>(warnIcon),
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0);
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PopulateListView();
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}
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// Unwraps the safearray of variants inside a variant, extracts the strings
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// inside them, and catenates the strings together with semicolons in between.
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// Return empty string on error.
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//
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// variant - in, the variant containing a safearray of variants of bstr.
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String
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GetNdncDescriptionHelper(VARIANT* variant)
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{
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LOG_FUNCTION(GetNdncDescriptionHelper);
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ASSERT(variant);
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ASSERT(V_VT(variant) == (VT_ARRAY | VT_VARIANT));
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String result;
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SAFEARRAY* psa = V_ARRAY(variant);
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do
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{
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ASSERT(psa);
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ASSERT(psa != (SAFEARRAY*)-1);
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if (!psa or psa == (SAFEARRAY*)-1)
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{
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LOG(L"variant not safe array");
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break;
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}
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if (::SafeArrayGetDim(psa) != 1)
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{
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LOG(L"safe array: wrong number of dimensions");
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break;
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}
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VARTYPE vt = VT_EMPTY;
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HRESULT hr = ::SafeArrayGetVartype(psa, &vt);
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if (FAILED(hr) || vt != VT_VARIANT)
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{
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LOG(L"safe array: wrong element type");
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break;
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}
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long lower = 0;
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long upper = 0;
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hr = ::SafeArrayGetLBound(psa, 1, &lower);
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BREAK_ON_FAILED_HRESULT2(hr, L"can't get lower bound");
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hr = ::SafeArrayGetUBound(psa, 1, &upper);
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BREAK_ON_FAILED_HRESULT2(hr, L"can't get upper bound");
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VARIANT varItem;
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::VariantInit(&varItem);
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for (long i = lower; i <= upper; ++i)
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{
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hr = ::SafeArrayGetElement(psa, &i, &varItem);
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if (FAILED(hr))
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{
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LOG(String::format(L"index %1!d! failed", i));
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continue;
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}
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result += V_BSTR(&varItem);
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if (i < upper)
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{
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result += L";";
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}
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::VariantClear(&varItem);
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}
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}
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while (0);
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LOG(result);
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return result;
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}
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// bind to an ndnc, read it's description(s), and return them catenated
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// together. Return empty string on error.
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//
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// ndncDn - in, DN of the ndnc
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String
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GetNdncDescription(const String& ndncDn)
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{
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LOG_FUNCTION2(GetNdncDescription, ndncDn);
|
|
ASSERT(!ndncDn.empty());
|
|
|
|
String result;
|
|
|
|
do
|
|
{
|
|
String path = L"LDAP://" + ndncDn;
|
|
|
|
SmartInterface<IADs> iads(0);
|
|
IADs* dumb = 0;
|
|
|
|
HRESULT hr =
|
|
::ADsGetObject(
|
|
path.c_str(),
|
|
__uuidof(iads),
|
|
reinterpret_cast<void**>(&dumb));
|
|
BREAK_ON_FAILED_HRESULT2(hr, L"ADsGetObject failed on " + path);
|
|
|
|
iads.Acquire(dumb);
|
|
|
|
// description is a multivalued attrbute for no apparent good reason.
|
|
// so we need to walk an array of values.
|
|
|
|
_variant_t variant;
|
|
hr = iads->GetEx(AutoBstr(L"description"), &variant);
|
|
BREAK_ON_FAILED_HRESULT2(hr, L"read description failed");
|
|
|
|
result = GetNdncDescriptionHelper(&variant);
|
|
}
|
|
while (0);
|
|
|
|
LOG(result);
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
|
|
// Build a list view with two columns, one for the DN of the ndncs for which
|
|
// this box is the last replica, another for the description(s) of those
|
|
// ndncs.
|
|
|
|
void
|
|
NonDomainNcErrorDialog::PopulateListView()
|
|
{
|
|
LOG_FUNCTION(NonDomainNcErrorDialog::PopulateListView);
|
|
|
|
HWND view = Win::GetDlgItem(hwnd, IDC_NDNC_LIST);
|
|
|
|
// add a column to the list view for the DN
|
|
|
|
LVCOLUMN column;
|
|
::ZeroMemory(&column, sizeof column);
|
|
|
|
column.mask = LVCF_FMT | LVCF_WIDTH | LVCF_TEXT | LVCF_SUBITEM;
|
|
column.fmt = LVCFMT_LEFT;
|
|
|
|
int width = 0;
|
|
String::load(IDS_NDNC_LIST_NAME_COLUMN_WIDTH).convert(width);
|
|
column.cx = width;
|
|
|
|
String label = String::load(IDS_NDNC_LIST_NAME_COLUMN);
|
|
column.pszText = const_cast<wchar_t*>(label.c_str());
|
|
|
|
Win::ListView_InsertColumn(view, 0, column);
|
|
|
|
// add a column to the list view for description.
|
|
|
|
String::load(IDS_NDNC_LIST_DESC_COLUMN_WIDTH).convert(width);
|
|
column.cx = width;
|
|
label = String::load(IDS_NDNC_LIST_DESC_COLUMN);
|
|
column.pszText = const_cast<wchar_t*>(label.c_str());
|
|
|
|
Win::ListView_InsertColumn(view, 1, column);
|
|
|
|
// Load up the edit box with the DNs we aliased in the ctor.
|
|
|
|
LVITEM item;
|
|
::ZeroMemory(&item, sizeof item);
|
|
|
|
for (
|
|
StringList::iterator i = ndncList.begin();
|
|
i != ndncList.end();
|
|
++i)
|
|
{
|
|
item.mask = LVIF_TEXT;
|
|
item.pszText = const_cast<wchar_t*>(i->c_str());
|
|
item.iSubItem = 0;
|
|
|
|
item.iItem = Win::ListView_InsertItem(view, item);
|
|
|
|
// add the description sub-item to the list control
|
|
|
|
String description = GetNdncDescription(*i);
|
|
|
|
item.mask = LVIF_TEXT;
|
|
item.pszText = const_cast<wchar_t*>(description.c_str());
|
|
item.iSubItem = 1;
|
|
|
|
Win::ListView_SetItem(view, item);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
bool
|
|
NonDomainNcErrorDialog::OnCommand(
|
|
HWND /* windowFrom */ ,
|
|
unsigned controlIDFrom,
|
|
unsigned code)
|
|
{
|
|
// LOG_FUNCTION(NonDomainNcErrorDialog::OnCommand);
|
|
|
|
if (code == BN_CLICKED)
|
|
{
|
|
switch (controlIDFrom)
|
|
{
|
|
case IDOK:
|
|
case IDCANCEL:
|
|
{
|
|
Win::EndDialog(hwnd, controlIDFrom);
|
|
return true;
|
|
}
|
|
|
|
// NTRAID#NTBUG9-239678-2000/11/28-sburns
|
|
|
|
case IDC_SHOW_HELP:
|
|
{
|
|
if (code == BN_CLICKED)
|
|
{
|
|
Win::HtmlHelp(
|
|
hwnd,
|
|
L"adconcepts.chm::/ADHelpDemoteWithNDNC.htm",
|
|
HH_DISPLAY_TOPIC,
|
|
0);
|
|
return true;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
// do nothing
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
|
|
|
|
bool
|
|
IsLastReplicaOfNonDomainNamingContexts()
|
|
{
|
|
LOG_FUNCTION(IsLastReplicaOfNonDomainNamingContexts);
|
|
|
|
bool result = false;
|
|
|
|
do
|
|
{
|
|
State::RunContext context = State::GetInstance().GetRunContext();
|
|
if (context != State::NT5_DC)
|
|
{
|
|
// not a DC, so can't be replica of any NCs
|
|
|
|
LOG(L"not a DC");
|
|
break;
|
|
}
|
|
|
|
// Find the list of non-domain NCs that this DC is the last replica
|
|
// (if any). If we find some, gripe at the user.
|
|
|
|
StringList ndncList;
|
|
HRESULT hr = IsLastNonDomainNamingContextReplica(ndncList);
|
|
if (FAILED(hr))
|
|
{
|
|
popup.Error(
|
|
Win::GetDesktopWindow(),
|
|
hr,
|
|
IDS_FAILED_TO_READ_NDNC_INFO);
|
|
|
|
result = true;
|
|
break;
|
|
}
|
|
|
|
if (hr == S_FALSE)
|
|
{
|
|
LOG(L"Not last replica of non-domain NCs");
|
|
ASSERT(result == false);
|
|
break;
|
|
}
|
|
|
|
result = true;
|
|
|
|
// there should be at least one DN in the list.
|
|
|
|
ASSERT(ndncList.size());
|
|
|
|
NonDomainNcErrorDialog(ndncList).ModalExecute(Win::GetDesktopWindow());
|
|
}
|
|
while (0);
|
|
|
|
LOG(result ? L"true" : L"false");
|
|
|
|
return result;
|
|
}
|
|
|