Copyright (C) Stefan Metzmacher 2004
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005
-
+
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
-
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-
+
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "librpc/gen_ndr/drsuapi.h"
-#include "rpc_server/common/common.h"
#include "lib/events/events.h"
+#include "rpc_server/common/common.h"
#include "lib/ldb/include/ldb.h"
#include "lib/ldb/include/ldb_errors.h"
#include "system/kerberos.h"
#include "auth/kerberos/kerberos.h"
#include "libcli/ldap/ldap_ndr.h"
#include "libcli/security/security.h"
-#include "librpc/gen_ndr/ndr_misc.h"
#include "auth/auth.h"
-#include "util/util_ldb.h"
+#include "../lib/util/util_ldb.h"
#include "dsdb/samdb/samdb.h"
#include "param/param.h"
krb5_error_code ret;
krb5_principal principal;
/* perhaps it's a principal with a realm, so return the right 'domain only' response */
- char **realm;
+ const char *realm;
ret = krb5_parse_name_flags(smb_krb5_context->krb5_context, name,
- KRB5_PRINCIPAL_PARSE_MUST_REALM, &principal);
+ KRB5_PRINCIPAL_PARSE_REQUIRE_REALM, &principal);
if (ret) {
info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
return WERR_OK;
}
/* This isn't an allocation assignemnt, so it is free'ed with the krb5_free_principal */
- realm = krb5_princ_realm(smb_krb5_context->krb5_context, principal);
-
- info1->dns_domain_name = talloc_strdup(mem_ctx, *realm);
+ realm = krb5_principal_get_realm(smb_krb5_context->krb5_context, principal);
+
+ info1->dns_domain_name = talloc_strdup(mem_ctx, realm);
krb5_free_principal(smb_krb5_context->krb5_context, principal);
-
+
W_ERROR_HAVE_NO_MEMORY(info1->dns_domain_name);
-
+
info1->status = DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY;
return WERR_OK;
}
DEBUG(1, ("ldb_search: dn: %s not found", service_dn_str));
return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
}
-
+
spnmappings = ldb_msg_find_element(res->msgs[0], "sPNMappings");
if (!spnmappings || spnmappings->num_values == 0) {
DEBUG(1, ("ldb_search: dn: %s no sPNMappings attribute", service_dn_str));
talloc_free(tmp_ctx);
return DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
}
-
+
/* C string manipulation sucks */
-
+
p = strchr(mapping, '=');
if (!p) {
DEBUG(1, ("ldb_search: dn: %s sPNMapping malformed: %s\n",
char *new_service;
char *new_princ;
enum drsuapi_DsNameStatus namestatus;
-
+
/* parse principal */
ret = krb5_parse_name_flags(smb_krb5_context->krb5_context,
name, KRB5_PRINCIPAL_PARSE_NO_REALM, &principal);
ret, mem_ctx)));
return WERR_NOMEM;
}
-
+
/* grab cifs/, http/ etc */
-
+
/* This is checked for in callers, but be safe */
if (principal->name.name_string.len < 2) {
info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
}
service = principal->name.name_string.val[0];
dns_name = principal->name.name_string.val[1];
-
+
/* MAP it */
namestatus = LDB_lookup_spn_alias(smb_krb5_context->krb5_context,
sam_ctx, mem_ctx,
service, &new_service);
-
+
if (namestatus == DRSUAPI_DS_NAME_STATUS_NOT_FOUND) {
info1->status = DRSUAPI_DS_NAME_STATUS_DOMAIN_ONLY;
info1->dns_domain_name = talloc_strdup(mem_ctx, dns_name);
krb5_free_principal(smb_krb5_context->krb5_context, principal);
return WERR_OK;
}
-
+
/* ooh, very nasty playing around in the Principal... */
free(principal->name.name_string.val[0]);
principal->name.name_string.val[0] = strdup(new_service);
krb5_free_principal(smb_krb5_context->krb5_context, principal);
return WERR_NOMEM;
}
-
+
/* reform principal */
ret = krb5_unparse_name_flags(smb_krb5_context->krb5_context, principal,
KRB5_PRINCIPAL_UNPARSE_NO_REALM, &new_princ);
krb5_free_principal(smb_krb5_context->krb5_context, principal);
return WERR_NOMEM;
}
-
+
wret = DsCrackNameOneName(sam_ctx, mem_ctx, format_flags, format_offered, format_desired,
new_princ, info1);
free(new_princ);
const char *result_filter = NULL;
krb5_error_code ret;
krb5_principal principal;
- char **realm;
+ const char *realm;
char *unparsed_name_short;
const char *domain_attrs[] = { NULL };
struct ldb_result *domain_res = NULL;
-
+
/* Prevent recursion */
if (!name) {
info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
}
ret = krb5_parse_name_flags(smb_krb5_context->krb5_context, name,
- KRB5_PRINCIPAL_PARSE_MUST_REALM, &principal);
+ KRB5_PRINCIPAL_PARSE_REQUIRE_REALM, &principal);
if (ret) {
info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
return WERR_OK;
}
-
- realm = krb5_princ_realm(smb_krb5_context->krb5_context, principal);
+
+ realm = krb5_principal_get_realm(smb_krb5_context->krb5_context, principal);
ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
samdb_partitions_dn(sam_ctx, mem_ctx),
LDB_SCOPE_ONELEVEL,
domain_attrs,
"(&(&(|(&(dnsRoot=%s)(nETBIOSName=*))(nETBIOSName=%s))(objectclass=crossRef))(ncName=*))",
- ldb_binary_encode_string(mem_ctx, *realm),
- ldb_binary_encode_string(mem_ctx, *realm));
+ ldb_binary_encode_string(mem_ctx, realm),
+ ldb_binary_encode_string(mem_ctx, realm));
if (ldb_ret != LDB_SUCCESS) {
DEBUG(2, ("DsCrackNameUPN domain ref search failed: %s", ldb_errstring(sam_ctx)));
info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
return WERR_OK;
}
-
+
switch (domain_res->count) {
case 1:
break;
info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
return WERR_OK;
}
-
+
ret = krb5_unparse_name_flags(smb_krb5_context->krb5_context, principal,
KRB5_PRINCIPAL_UNPARSE_NO_REALM, &unparsed_name_short);
krb5_free_principal(smb_krb5_context->krb5_context, principal);
-
+
if (ret) {
free(unparsed_name_short);
return WERR_NOMEM;
}
-
+
/* This may need to be extended for more userPrincipalName variations */
result_filter = talloc_asprintf(mem_ctx, "(&(objectClass=user)(samAccountName=%s))",
ldb_binary_encode_string(mem_ctx, unparsed_name_short));
const char *result_filter = NULL;
struct ldb_dn *name_dn = NULL;
- struct smb_krb5_context *smb_krb5_context;
- ret = smb_krb5_init_context(mem_ctx,
- ldb_get_event_context(sam_ctx),
- (struct loadparm_context *)ldb_get_opaque(sam_ctx, "loadparm"),
- &smb_krb5_context);
-
- if (ret) {
- return WERR_NOMEM;
- }
+ struct smb_krb5_context *smb_krb5_context = NULL;
info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
info1->dns_domain_name = NULL;
/* here we need to set the domain_filter and/or the result_filter */
switch (format_offered) {
+ case DRSUAPI_DS_NAME_FORMAT_UNKNOWN:
+ {
+ int i;
+ enum drsuapi_DsNameFormat formats[] = {
+ DRSUAPI_DS_NAME_FORMAT_FQDN_1779, DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL,
+ DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT, DRSUAPI_DS_NAME_FORMAT_CANONICAL,
+ DRSUAPI_DS_NAME_FORMAT_GUID, DRSUAPI_DS_NAME_FORMAT_DISPLAY,
+ DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL,
+ DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY,
+ DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX
+ };
+ WERROR werr;
+ for (i=0; i < ARRAY_SIZE(formats); i++) {
+ werr = DsCrackNameOneName(sam_ctx, mem_ctx, format_flags, formats[i], format_desired, name, info1);
+ if (!W_ERROR_IS_OK(werr)) {
+ return werr;
+ }
+ if (info1->status != DRSUAPI_DS_NAME_STATUS_NOT_FOUND) {
+ return werr;
+ }
+ }
+ return werr;
+ }
+
case DRSUAPI_DS_NAME_FORMAT_CANONICAL:
case DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX:
{
char *str, *s, *account;
-
+
if (strlen(name) == 0) {
info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
return WERR_OK;
}
-
+
str = talloc_strdup(mem_ctx, name);
W_ERROR_HAVE_NO_MEMORY(str);
-
+
if (format_offered == DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX) {
/* Look backwards for the \n, and replace it with / */
s = strrchr(str, '\n');
info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
return WERR_OK;
}
-
+
s[0] = '\0';
s++;
/* There may not be anything after the domain component (search for the domain itself) */
if (s[0]) {
-
+
account = strrchr(s, '/');
if (!account) {
account = s;
char *p;
char *domain;
const char *account = NULL;
-
+
domain = talloc_strdup(mem_ctx, name);
W_ERROR_HAVE_NO_MEMORY(domain);
-
+
p = strchr(domain, '\\');
if (!p) {
/* invalid input format */
return WERR_OK;
}
p[0] = '\0';
-
+
if (p[1]) {
account = &p[1];
}
-
+
domain_filter = talloc_asprintf(mem_ctx,
"(&(&(nETBIOSName=%s)(objectclass=crossRef))(ncName=*))",
ldb_binary_encode_string(mem_ctx, domain));
ldb_binary_encode_string(mem_ctx, account));
W_ERROR_HAVE_NO_MEMORY(result_filter);
}
-
+
talloc_free(domain);
break;
}
info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
return WERR_OK;
}
-
+
ldap_guid = ldap_encode_ndr_GUID(mem_ctx, &guid);
if (!ldap_guid) {
return WERR_NOMEM;
W_ERROR_HAVE_NO_MEMORY(result_filter);
break;
}
-
+
/* A S-1234-5678 style string */
case DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY: {
struct dom_sid *sid = dom_sid_parse_talloc(mem_ctx, name);
char *ldap_sid;
-
+
domain_filter = NULL;
if (!sid) {
info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
case DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL: {
krb5_principal principal;
char *unparsed_name;
+
+ ret = smb_krb5_init_context(mem_ctx,
+ ldb_get_event_context(sam_ctx),
+ (struct loadparm_context *)ldb_get_opaque(sam_ctx, "loadparm"),
+ &smb_krb5_context);
+
+ if (ret) {
+ return WERR_NOMEM;
+ }
+
+ /* Ensure we reject compleate junk first */
ret = krb5_parse_name(smb_krb5_context->krb5_context, name, &principal);
if (ret) {
info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
return WERR_OK;
}
-
+
domain_filter = NULL;
-
+
+ /* By getting the unparsed name here, we ensure the escaping is correct (and trust the client less) */
ret = krb5_unparse_name(smb_krb5_context->krb5_context, principal, &unparsed_name);
if (ret) {
krb5_free_principal(smb_krb5_context->krb5_context, principal);
}
krb5_free_principal(smb_krb5_context->krb5_context, principal);
+
+ /* The ldb_binary_encode_string() here avoid LDAP filter injection attacks */
result_filter = talloc_asprintf(mem_ctx, "(&(objectClass=user)(userPrincipalName=%s))",
ldb_binary_encode_string(mem_ctx, unparsed_name));
-
+
free(unparsed_name);
W_ERROR_HAVE_NO_MEMORY(result_filter);
break;
krb5_principal principal;
char *unparsed_name_short;
char *service;
+
+ ret = smb_krb5_init_context(mem_ctx,
+ ldb_get_event_context(sam_ctx),
+ (struct loadparm_context *)ldb_get_opaque(sam_ctx, "loadparm"),
+ &smb_krb5_context);
+
+ if (ret) {
+ return WERR_NOMEM;
+ }
+
ret = krb5_parse_name(smb_krb5_context->krb5_context, name, &principal);
if (ret == 0 && principal->name.name_string.len < 2) {
info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
}
domain_filter = NULL;
-
+
ret = krb5_unparse_name_flags(smb_krb5_context->krb5_context, principal,
KRB5_PRINCIPAL_UNPARSE_NO_REALM, &unparsed_name_short);
if (ret) {
krb5_free_principal(smb_krb5_context->krb5_context, principal);
free(unparsed_name_short);
W_ERROR_HAVE_NO_MEMORY(result_filter);
-
+
break;
}
default: {
return DsCrackNameOneSyntactical(mem_ctx, format_offered, format_desired,
name_dn, name, info1);
}
-
+
return DsCrackNameOneFilter(sam_ctx, mem_ctx,
smb_krb5_context,
format_flags, format_offered, format_desired,
if (!cracked) {
return WERR_NOMEM;
}
-
+
return WERR_OK;
}
const char * const _domain_attrs_nt4[] = { "ncName", "dnsRoot", "nETBIOSName", NULL};
const char * const _result_attrs_nt4[] = { "sAMAccountName", "objectSid", "objectClass", NULL};
-
+
const char * const _domain_attrs_guid[] = { "ncName", "dnsRoot", NULL};
const char * const _result_attrs_guid[] = { "objectGUID", NULL};
-
+
const char * const _domain_attrs_display[] = { "ncName", "dnsRoot", NULL};
const char * const _result_attrs_display[] = { "displayName", "samAccountName", NULL};
LDB_SCOPE_ONELEVEL,
domain_attrs,
"%s", domain_filter);
-
+
if (ldb_ret != LDB_SUCCESS) {
DEBUG(2, ("DsCrackNameOneFilter domain ref search failed: %s", ldb_errstring(sam_ctx)));
info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
return WERR_OK;
}
-
+
switch (domain_res->count) {
case 1:
break;
struct ldb_result *res;
if (domain_res) {
result_basedn = samdb_result_dn(sam_ctx, mem_ctx, domain_res->msgs[0], "ncName", NULL);
-
+
ret = ldb_search(sam_ctx, mem_ctx, &res,
result_basedn, LDB_SCOPE_SUBTREE,
result_attrs, "%s", result_filter);
res = talloc_zero(mem_ctx, struct ldb_result);
W_ERROR_HAVE_NO_MEMORY(res);
-
+
ret = ldb_build_search_req(&req, sam_ctx, mem_ctx,
ldb_get_root_basedn(sam_ctx),
LDB_SCOPE_SUBTREE,
result_attrs,
NULL,
res,
- ldb_search_default_callback);
+ ldb_search_default_callback,
+ NULL);
if (ret == LDB_SUCCESS) {
struct ldb_search_options_control *search_options;
search_options = talloc(req, struct ldb_search_options_control);
info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
return WERR_OK;
}
-
- ldb_set_timeout(sam_ctx, req, 0); /* use default timeout */
-
+
ret = ldb_request(sam_ctx, req);
-
+
if (ret == LDB_SUCCESS) {
ret = ldb_wait(req->handle, LDB_WAIT_ALL);
}
-
+
talloc_free(req);
if (ret != LDB_SUCCESS) {
smb_krb5_context,
format_flags, format_offered, format_desired,
name, info1);
-
+
case DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL:
return DsCrackNameUPN(sam_ctx, mem_ctx, smb_krb5_context,
format_flags, format_offered, format_desired,
if (p) {
p[0] = '\0';
}
-
+
/* here we can use result and domain_res[0] */
switch (format_desired) {
case DRSUAPI_DS_NAME_FORMAT_FQDN_1779: {
const struct dom_sid *sid = samdb_result_dom_sid(mem_ctx, result, "objectSid");
const char *_acc = "", *_dom = "";
-
+
if (samdb_find_attribute(sam_ctx, result, "objectClass", "domain")) {
ldb_ret = ldb_search(sam_ctx, mem_ctx, &domain_res,
LDB_SCOPE_ONELEVEL,
domain_attrs,
"(ncName=%s)", ldb_dn_get_linearized(result->dn));
-
+
if (ldb_ret != LDB_SUCCESS) {
DEBUG(2, ("DsCrackNameOneFilter domain ref search failed: %s", ldb_errstring(sam_ctx)));
info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
return WERR_OK;
}
-
+
switch (domain_res->count) {
case 1:
break;
attrs,
"(&(objectSid=%s)(objectClass=domain))",
ldap_encode_ndr_dom_sid(mem_ctx, dom_sid));
-
+
if (ldb_ret != LDB_SUCCESS) {
DEBUG(2, ("DsCrackNameOneFilter domain search failed: %s", ldb_errstring(sam_ctx)));
info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
return WERR_OK;
}
-
+
switch (domain_res->count) {
case 1:
break;
LDB_SCOPE_ONELEVEL,
domain_attrs,
"(ncName=%s)", ldb_dn_get_linearized(domain_res->msgs[0]->dn));
-
+
if (ldb_ret != LDB_SUCCESS) {
DEBUG(2, ("DsCrackNameOneFilter domain ref search failed: %s", ldb_errstring(sam_ctx)));
info1->status = DRSUAPI_DS_NAME_STATUS_RESOLVE_ERROR;
return WERR_OK;
}
-
+
switch (domain_res2->count) {
case 1:
break;
info1->result_name = talloc_asprintf(mem_ctx, "%s\\%s", _dom, _acc);
W_ERROR_HAVE_NO_MEMORY(info1->result_name);
-
+
info1->status = DRSUAPI_DS_NAME_STATUS_OK;
return WERR_OK;
}
case DRSUAPI_DS_NAME_FORMAT_GUID: {
struct GUID guid;
-
+
guid = samdb_result_guid(result, "objectGUID");
-
+
info1->result_name = GUID_string2(mem_ctx, &guid);
W_ERROR_HAVE_NO_MEMORY(info1->result_name);
-
+
info1->status = DRSUAPI_DS_NAME_STATUS_OK;
return WERR_OK;
}
default:
return NT_STATUS_UNSUCCESSFUL;
}
-
+
*user_dn = ldb_dn_new(mem_ctx, sam_ctx, info1.result_name);
-
+
if (domain_dn) {
werr = DsCrackNameOneName(sam_ctx, mem_ctx, 0,
DRSUAPI_DS_NAME_FORMAT_CANONICAL,
default:
return NT_STATUS_UNSUCCESSFUL;
}
-
+
*domain_dn = ldb_dn_new(mem_ctx, sam_ctx, info1.result_name);
}
return NT_STATUS_OK;
-
}
/* Given a Service Principal Name (such as host/foo.bar.com@BAR.COM),
default:
return NT_STATUS_UNSUCCESSFUL;
}
-
+
*user_dn = ldb_dn_new(mem_ctx, sam_ctx, info1.result_name);
-
+
if (domain_dn) {
werr = DsCrackNameOneName(sam_ctx, mem_ctx, 0,
DRSUAPI_DS_NAME_FORMAT_CANONICAL,
default:
return NT_STATUS_UNSUCCESSFUL;
}
-
+
*domain_dn = ldb_dn_new(mem_ctx, sam_ctx, info1.result_name);
}
return NT_STATUS_OK;
-
}
NTSTATUS crack_name_to_nt4_name(TALLOC_CTX *mem_ctx,
- struct event_context *ev_ctx,
+ struct tevent_context *ev_ctx,
struct loadparm_context *lp_ctx,
uint32_t format_offered,
const char *name,
return NT_STATUS_OK;
}
- ldb = samdb_connect(mem_ctx, ev_ctx, lp_ctx, system_session(mem_ctx, lp_ctx));
+ ldb = samdb_connect(mem_ctx, ev_ctx, lp_ctx, system_session(lp_ctx));
if (ldb == NULL) {
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
default:
return NT_STATUS_UNSUCCESSFUL;
}
-
+
*nt4_domain = talloc_strdup(mem_ctx, info1.result_name);
-
+ if (*nt4_domain == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
p = strchr(*nt4_domain, '\\');
if (!p) {
return NT_STATUS_INVALID_PARAMETER;
}
p[0] = '\0';
-
- if (p[1]) {
- *nt4_account = talloc_strdup(mem_ctx, &p[1]);
- }
- if (!*nt4_account || !*nt4_domain) {
+ *nt4_account = talloc_strdup(mem_ctx, &p[1]);
+ if (*nt4_account == NULL) {
return NT_STATUS_NO_MEMORY;
}
}
NTSTATUS crack_auto_name_to_nt4_name(TALLOC_CTX *mem_ctx,
- struct event_context *ev_ctx,
+ struct tevent_context *ev_ctx,
struct loadparm_context *lp_ctx,
const char *name,
const char **nt4_domain,
const char **nt4_account)
{
- uint32_t format_offered = DRSUAPI_DS_NAME_FORMAT_UKNOWN;
+ uint32_t format_offered = DRSUAPI_DS_NAME_FORMAT_UNKNOWN;
/* Handle anonymous bind */
if (!name || !*name) {
format_offered = DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT;
} else if (strchr_m(name, '/')) {
format_offered = DRSUAPI_DS_NAME_FORMAT_CANONICAL;
+ } else {
+ return NT_STATUS_NO_SUCH_USER;
}
return crack_name_to_nt4_name(mem_ctx, ev_ctx, lp_ctx, format_offered, name, nt4_domain, nt4_account);
git.samba.org / ira / wip.git / blobdiff