[SCM] Samba Shared Repository - branch master updated
Stefan Metzmacher
metze at samba.org
Sat Jan 12 04:53:02 MST 2013
The branch, master has been updated
via 95c891c dsdb: Make linked_attributes module GUID based for renames
via a8c745a selftest: skip base.dir2 tests as they just spin on modern ext4
via bdc172a s4-resolve: Fix parsing of IPv6/AAAA in dns_lookup (bug #9555)
from 8ae1c46 winbind: Fix some missing NULL checks
http://gitweb.samba.org/?p=samba.git;a=shortlog;h=master
- Log -----------------------------------------------------------------
commit 95c891cf44143e12b2f90047f3fefe6d23c598fd
Author: Andrew Bartlett <abartlet at samba.org>
Date: Fri Jan 11 16:42:41 2013 +1100
dsdb: Make linked_attributes module GUID based for renames
This ensures that when we have the backlink out of sync with the forward link (perhaps due
to another operation that has put the backlink handling in an end-of-transaction
TODO list in repl_meta_data) that we do not error out, we just cope as well as we can.
The GUID is the unique identifier, not the DN.
Andrew Bartlett
Reviewed-by: Stefan Metzmacher <metze at samba.org>
Autobuild-User(master): Stefan Metzmacher <metze at samba.org>
Autobuild-Date(master): Sat Jan 12 12:52:28 CET 2013 on sn-devel-104
commit a8c745a28c3278e9fbee6f802dc340fe660f27ca
Author: Andrew Bartlett <abartlet at samba.org>
Date: Fri Jan 11 08:26:07 2013 +1100
selftest: skip base.dir2 tests as they just spin on modern ext4
Reviewed-by: Stefan Metzmacher <metze at samba.org>
commit bdc172aca541046fd03b2b0cd69e054fe03d3a89
Author: Arvid Requate <requate at univention.de>
Date: Fri Jan 11 14:17:06 2013 +0100
s4-resolve: Fix parsing of IPv6/AAAA in dns_lookup (bug #9555)
Reviewed-by: Stefan Metzmacher <metze at samba.org>
-----------------------------------------------------------------------
Summary of changes:
selftest/skip | 1 +
source4/dsdb/samdb/ldb_modules/linked_attributes.c | 77 ++++++++++++++++----
source4/libcli/resolve/dns_ex.c | 1 +
3 files changed, 66 insertions(+), 13 deletions(-)
Changeset truncated at 500 lines:
diff --git a/selftest/skip b/selftest/skip
index 2ee5d8e..4101aa2 100644
--- a/selftest/skip
+++ b/selftest/skip
@@ -107,3 +107,4 @@ bench # don't run benchmarks in our selftest
^samba4.drs.delete_object.python # flakey test
^samba4.rpc.unixinfo # This contains a server-side getpwuid call which hangs the server when nss_winbindd is in use
^samba.tests.dcerpc.unix # This contains a server-side getpwuid call which hangs the server when nss_winbindd is in use
+base.dir2 # This test spins on modern ext4, so we have to skip it
diff --git a/source4/dsdb/samdb/ldb_modules/linked_attributes.c b/source4/dsdb/samdb/ldb_modules/linked_attributes.c
index 5ebf4ef..6e08209 100644
--- a/source4/dsdb/samdb/ldb_modules/linked_attributes.c
+++ b/source4/dsdb/samdb/ldb_modules/linked_attributes.c
@@ -141,7 +141,9 @@ static struct la_context *linked_attributes_init(struct ldb_module *module,
/*
turn a DN into a GUID
*/
-static int la_guid_from_dn(struct la_context *ac, struct ldb_dn *dn, struct GUID *guid)
+static int la_guid_from_dn(struct ldb_module *module,
+ struct ldb_request *parent,
+ struct ldb_dn *dn, struct GUID *guid)
{
NTSTATUS status;
int ret;
@@ -153,10 +155,10 @@ static int la_guid_from_dn(struct la_context *ac, struct ldb_dn *dn, struct GUID
if (!NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
DEBUG(4,(__location__ ": Unable to parse GUID for dn %s\n",
ldb_dn_get_linearized(dn)));
- return ldb_operr(ldb_module_get_ctx(ac->module));
+ return ldb_operr(ldb_module_get_ctx(module));
}
- ret = dsdb_module_guid_by_dn(ac->module, dn, guid, ac->req);
+ ret = dsdb_module_guid_by_dn(module, dn, guid, parent);
if (ret != LDB_SUCCESS) {
DEBUG(4,(__location__ ": Failed to find GUID for dn %s\n",
ldb_dn_get_linearized(dn)));
@@ -193,7 +195,7 @@ static int la_store_op(struct la_context *ac,
os->op = op;
- ret = la_guid_from_dn(ac, op_dn, &os->guid);
+ ret = la_guid_from_dn(ac->module, ac->req, op_dn, &os->guid);
talloc_free(op_dn);
if (ret == LDB_ERR_NO_SUCH_OBJECT && ac->req->operation == LDB_DELETE) {
/* we are deleting an object, and we've found it has a
@@ -658,6 +660,7 @@ static int linked_attributes_modify(struct ldb_module *module, struct ldb_reques
}
static int linked_attributes_fix_links(struct ldb_module *module,
+ struct GUID self_guid,
struct ldb_dn *old_dn, struct ldb_dn *new_dn,
struct ldb_message_element *el, struct dsdb_schema *schema,
const struct dsdb_attribute *schema_attr,
@@ -684,6 +687,7 @@ static int linked_attributes_fix_links(struct ldb_module *module,
struct ldb_result *res;
struct ldb_message *msg;
struct ldb_message_element *el2;
+ struct GUID link_guid;
dsdb_dn = dsdb_dn_parse(tmp_ctx, ldb, &el->values[i], schema_attr->syntax->ldap_oid);
if (dsdb_dn == NULL) {
@@ -691,17 +695,36 @@ static int linked_attributes_fix_links(struct ldb_module *module,
return LDB_ERR_INVALID_DN_SYNTAX;
}
- ret = dsdb_module_search_dn(module, tmp_ctx, &res, dsdb_dn->dn,
- attrs,
- DSDB_FLAG_NEXT_MODULE |
- DSDB_SEARCH_SHOW_RECYCLED |
- DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT |
- DSDB_SEARCH_REVEAL_INTERNALS, parent);
+ ret = la_guid_from_dn(module, parent, dsdb_dn->dn, &link_guid);
+ if (ret != LDB_SUCCESS) {
+ ldb_asprintf_errstring(ldb, "Linked attribute %s->%s between %s and %s - GUID not found - %s",
+ el->name, target->lDAPDisplayName,
+ ldb_dn_get_linearized(old_dn),
+ ldb_dn_get_linearized(dsdb_dn->dn),
+ ldb_errstring(ldb));
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ /*
+ * get the existing message from the db for the object with
+ * this GUID, returning attribute being modified. We will then
+ * use this msg as the basis for a modify call
+ */
+ ret = dsdb_module_search(module, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE, attrs,
+ DSDB_FLAG_NEXT_MODULE |
+ DSDB_SEARCH_SEARCH_ALL_PARTITIONS |
+ DSDB_SEARCH_SHOW_RECYCLED |
+ DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT |
+ DSDB_SEARCH_REVEAL_INTERNALS,
+ parent,
+ "objectGUID=%s", GUID_string(tmp_ctx, &link_guid));
if (ret != LDB_SUCCESS) {
- ldb_asprintf_errstring(ldb, "Linked attribute %s->%s between %s and %s - remote not found - %s",
+ ldb_asprintf_errstring(ldb, "Linked attribute %s->%s between %s and %s - target GUID %s not found - %s",
el->name, target->lDAPDisplayName,
ldb_dn_get_linearized(old_dn),
ldb_dn_get_linearized(dsdb_dn->dn),
+ GUID_string(tmp_ctx, &link_guid),
ldb_errstring(ldb));
talloc_free(tmp_ctx);
return ret;
@@ -729,14 +752,34 @@ static int linked_attributes_fix_links(struct ldb_module *module,
/* find our DN in the values */
for (j=0; j<el2->num_values; j++) {
struct dsdb_dn *dsdb_dn2;
+ struct GUID link_guid;
+
dsdb_dn2 = dsdb_dn_parse(msg, ldb, &el2->values[j], target->syntax->ldap_oid);
if (dsdb_dn2 == NULL) {
talloc_free(tmp_ctx);
return LDB_ERR_INVALID_DN_SYNTAX;
}
- if (ldb_dn_compare(old_dn, dsdb_dn2->dn) != 0) {
+
+ ret = la_guid_from_dn(module, parent, dsdb_dn2->dn, &link_guid);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ /*
+ * By comparing using the GUID we ensure that
+ * even if somehow the name has got out of
+ * sync, this rename will fix it.
+ *
+ * If somehow we don't have a GUID on the DN
+ * in the DB, the la_guid_from_dn call will be
+ * more costly, but still give us a GUID.
+ * dbcheck will fix this if run.
+ */
+ if (!GUID_equal(&self_guid, &link_guid)) {
continue;
}
+
ret = ldb_dn_update_components(dsdb_dn2->dn, new_dn);
if (ret != LDB_SUCCESS) {
talloc_free(tmp_ctx);
@@ -783,6 +826,8 @@ static int linked_attributes_rename(struct ldb_module *module, struct ldb_reques
struct ldb_context *ldb = ldb_module_get_ctx(module);
struct dsdb_schema *schema;
int ret;
+ struct GUID guid;
+
/*
- load the current msg
- find any linked attributes
@@ -792,6 +837,7 @@ static int linked_attributes_rename(struct ldb_module *module, struct ldb_reques
ret = dsdb_module_search_dn(module, req, &res, req->op.rename.olddn,
NULL,
DSDB_FLAG_NEXT_MODULE |
+ DSDB_SEARCH_SHOW_EXTENDED_DN |
DSDB_SEARCH_SHOW_RECYCLED, req);
if (ret != LDB_SUCCESS) {
return ret;
@@ -804,6 +850,11 @@ static int linked_attributes_rename(struct ldb_module *module, struct ldb_reques
msg = res->msgs[0];
+ ret = la_guid_from_dn(module, req, msg->dn, &guid);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
for (i=0; i<msg->num_elements; i++) {
struct ldb_message_element *el = &msg->elements[i];
const struct dsdb_attribute *schema_attr
@@ -811,7 +862,7 @@ static int linked_attributes_rename(struct ldb_module *module, struct ldb_reques
if (!schema_attr || schema_attr->linkID == 0) {
continue;
}
- ret = linked_attributes_fix_links(module, msg->dn, req->op.rename.newdn, el,
+ ret = linked_attributes_fix_links(module, guid, msg->dn, req->op.rename.newdn, el,
schema, schema_attr, req);
if (ret != LDB_SUCCESS) {
talloc_free(res);
diff --git a/source4/libcli/resolve/dns_ex.c b/source4/libcli/resolve/dns_ex.c
index 7f5b841..bc64e8d 100644
--- a/source4/libcli/resolve/dns_ex.c
+++ b/source4/libcli/resolve/dns_ex.c
@@ -140,6 +140,7 @@ static int reply_to_addrs(TALLOC_CTX *mem_ctx, uint32_t *a_num,
if (addr == NULL) {
continue;
}
+ break;
default:
continue;
}
--
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