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authorAndrew Tridgell <tridge@samba.org>2011-02-14 10:14:15 +1100
committerAndrew Tridgell <tridge@samba.org>2011-02-14 17:55:08 +1100
commit63d4a99c1b7bb6937eca9f79dc77067468ae8333 (patch)
treecc97a0402721852c1414e2969ea97f07dd858700 /source4/dsdb/samdb/ldb_modules
parentc2ccd24ebf91125394e4aa369945cc689152ff5f (diff)
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s4-dsdb: fixed problem with constrained modification of description attribute
This approach just asks the tdb backend to handle the single valued constraint for us Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>
Diffstat (limited to 'source4/dsdb/samdb/ldb_modules')
-rw-r--r--source4/dsdb/samdb/ldb_modules/samldb.c57
1 files changed, 13 insertions, 44 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/samldb.c b/source4/dsdb/samdb/ldb_modules/samldb.c
index ee0d66cc04..710ce8bf3a 100644
--- a/source4/dsdb/samdb/ldb_modules/samldb.c
+++ b/source4/dsdb/samdb/ldb_modules/samldb.c
@@ -1572,35 +1572,26 @@ static int samldb_member_check(struct samldb_ctx *ac)
/* SAM objects have special rules regarding the "description" attribute on
* modify operations. */
-static int samldb_description_check(struct samldb_ctx *ac)
+static int samldb_description_check(struct samldb_ctx *ac, bool *modified)
{
struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
const char * const attrs[] = { "objectClass", "description", NULL };
- struct ldb_message_element *el;
struct ldb_result *res;
unsigned int i;
int ret;
/* Fetch informations from the existing object */
-
ret = dsdb_module_search(ac->module, ac, &res, ac->msg->dn, LDB_SCOPE_BASE, attrs,
- DSDB_FLAG_NEXT_MODULE, ac->req, NULL);
+ DSDB_FLAG_NEXT_MODULE | DSDB_SEARCH_SHOW_DELETED, ac->req,
+ "(|(objectclass=user)(objectclass=group)(objectclass=samDomain)(objectclass=samServer))");
if (ret != LDB_SUCCESS) {
- return ret;
- }
- if (res->count != 1) {
- return ldb_operr(ldb);
+ /* don't treat it specially ... let normal error codes
+ happen from other places */
+ ldb_reset_err_string(ldb);
+ return LDB_SUCCESS;
}
-
- /* if it's not a SAM object then please skip the constraints */
- if ((samdb_find_attribute(ldb, res->msgs[0], "objectClass",
- "group") == NULL) &&
- (samdb_find_attribute(ldb, res->msgs[0], "objectClass",
- "samDomain") == NULL) &&
- (samdb_find_attribute(ldb, res->msgs[0], "objectClass",
- "samServer") == NULL) &&
- (samdb_find_attribute(ldb, res->msgs[0], "objectClass",
- "user") == NULL)) {
+ if (res->count == 0) {
+ /* we didn't match the filter */
talloc_free(res);
return LDB_SUCCESS;
}
@@ -1608,31 +1599,9 @@ static int samldb_description_check(struct samldb_ctx *ac)
/* We've to walk over all modification entries and consider the
* "description" ones. */
for (i = 0; i < ac->msg->num_elements; i++) {
- if (ldb_attr_cmp(ac->msg->elements[i].name,
- "description") != 0) {
- continue;
- }
-
- el = &ac->msg->elements[i];
-
- /* Multi-valued add or replace operations are always denied */
- if ((LDB_FLAG_MOD_TYPE(el->flags) != LDB_FLAG_MOD_DELETE) &&
- (el->num_values > 1)) {
- ldb_asprintf_errstring(ldb,
- "samldb: Description on SAM entry '%s' is changed using a multi-valued add or replace operation!",
- ldb_dn_get_linearized(ac->msg->dn));
- return LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS;
- }
-
- /* Add operations are only allowed if no value exists */
- if (LDB_FLAG_MOD_TYPE(el->flags) == LDB_FLAG_MOD_ADD) {
- if (ldb_msg_find_element(res->msgs[0], "description")
- != NULL) {
- ldb_asprintf_errstring(ldb,
- "samldb: Description on SAM entry '%s' is changed using an add operation while a value already exists!",
- ldb_dn_get_linearized(ac->msg->dn));
- return LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS;
- }
+ if (ldb_attr_cmp(ac->msg->elements[i].name, "description") == 0) {
+ ac->msg->elements[i].flags |= LDB_FLAG_INTERNAL_FORCE_SINGLE_VALUE_CHECK;
+ *modified = true;
}
}
@@ -2049,7 +2018,7 @@ static int samldb_modify(struct ldb_module *module, struct ldb_request *req)
el = ldb_msg_find_element(ac->msg, "description");
if (el != NULL) {
- ret = samldb_description_check(ac);
+ ret = samldb_description_check(ac, &modified);
if (ret != LDB_SUCCESS) {
return ret;
}