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-rw-r--r--source4/dsdb/samdb/ldb_modules/samldb.c126
1 files changed, 96 insertions, 30 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/samldb.c b/source4/dsdb/samdb/ldb_modules/samldb.c
index 7a5beda60b..0a7ab22c40 100644
--- a/source4/dsdb/samdb/ldb_modules/samldb.c
+++ b/source4/dsdb/samdb/ldb_modules/samldb.c
@@ -1510,15 +1510,16 @@ static int samldb_member_check(struct samldb_ctx *ac)
}
/* This trigger adapts the "servicePrincipalName" attributes if the
- * "dNSHostName" attribute changes */
+ * "dNSHostName" and/or "sAMAccountName" attribute change(s) */
static int samldb_service_principal_names_change(struct samldb_ctx *ac)
{
struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
- struct ldb_message_element *el = NULL;
+ struct ldb_message_element *el = NULL, *el2 = NULL;
struct ldb_message *msg;
const char *attrs[] = { "servicePrincipalName", NULL };
struct ldb_result *res;
- const char *dns_hostname, *old_dns_hostname;
+ const char *dns_hostname = NULL, *old_dns_hostname = NULL,
+ *sam_accountname = NULL, *old_sam_accountname = NULL;
unsigned int i;
int ret;
@@ -1530,40 +1531,98 @@ static int samldb_service_principal_names_change(struct samldb_ctx *ac)
* write protected
*/
for (i = 0; i < ac->msg->num_elements; i++) {
- if (ldb_attr_cmp(ac->msg->elements[i].name,
- "dNSHostName") != 0) {
- continue;
- }
-
- if (LDB_FLAG_MOD_TYPE(ac->msg->elements[i].flags)
- != LDB_FLAG_MOD_DELETE) {
+ if ((ldb_attr_cmp(ac->msg->elements[i].name,
+ "dNSHostName") == 0) &&
+ (LDB_FLAG_MOD_TYPE(ac->msg->elements[i].flags)
+ != LDB_FLAG_MOD_DELETE)) {
el = &ac->msg->elements[i];
}
+ if ((ldb_attr_cmp(ac->msg->elements[i].name,
+ "sAMAccountName") == 0) &&
+ (LDB_FLAG_MOD_TYPE(ac->msg->elements[i].flags)
+ != LDB_FLAG_MOD_DELETE)) {
+ el2 = &ac->msg->elements[i];
+ }
}
- if (el == NULL) {
+ if ((el == NULL) && (el2 == NULL)) {
/* we are not affected */
return LDB_SUCCESS;
}
/* Create a temporary message for fetching the "dNSHostName" */
- msg = ldb_msg_new(ac->msg);
- if (msg == NULL) {
- return ldb_module_oom(ac->module);
+ if (el != NULL) {
+ msg = ldb_msg_new(ac->msg);
+ if (msg == NULL) {
+ return ldb_module_oom(ac->module);
+ }
+ ret = ldb_msg_add(msg, el, 0);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ dns_hostname = talloc_steal(ac,
+ ldb_msg_find_attr_as_string(msg, "dNSHostName", NULL));
+ talloc_free(msg);
+
+ old_dns_hostname = samdb_search_string(ldb, ac, ac->msg->dn,
+ "dNSHostName", NULL);
}
- ret = ldb_msg_add(msg, el, 0);
- if (ret != LDB_SUCCESS) {
- return ret;
+
+ /* Create a temporary message for fetching the "sAMAccountName" */
+ if (el2 != NULL) {
+ char *tempstr, *tempstr2;
+
+ msg = ldb_msg_new(ac->msg);
+ if (msg == NULL) {
+ return ldb_module_oom(ac->module);
+ }
+ ret = ldb_msg_add(msg, el2, 0);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ tempstr = talloc_strdup(ac,
+ ldb_msg_find_attr_as_string(msg, "sAMAccountName", NULL));
+ talloc_free(msg);
+
+ tempstr2 = talloc_strdup(ac,
+ samdb_search_string(ldb, ac, ac->msg->dn, "sAMAccountName", NULL));
+
+ /* The "sAMAccountName" needs some additional trimming: we need
+ * to remove the trailing "$"s if they exist. */
+ if ((tempstr != NULL) && (tempstr[0] != '\0') &&
+ (tempstr[strlen(tempstr) - 1] == '$')) {
+ tempstr[strlen(tempstr) - 1] = '\0';
+ }
+ if ((tempstr2 != NULL) && (tempstr2[0] != '\0') &&
+ (tempstr2[strlen(tempstr2) - 1] == '$')) {
+ tempstr2[strlen(tempstr2) - 1] = '\0';
+ }
+ sam_accountname = tempstr;
+ old_sam_accountname = tempstr2;
+ }
+
+ if (old_dns_hostname == NULL) {
+ /* we cannot change when the old name is unknown */
+ dns_hostname = NULL;
+ }
+ if ((old_dns_hostname != NULL) && (dns_hostname != NULL) &&
+ (strcasecmp(old_dns_hostname, dns_hostname) == 0)) {
+ /* The "dNSHostName" didn't change */
+ dns_hostname = NULL;
+ }
+
+ if (old_sam_accountname == NULL) {
+ /* we cannot change when the old name is unknown */
+ sam_accountname = NULL;
+ }
+ if ((old_sam_accountname != NULL) && (sam_accountname != NULL) &&
+ (strcasecmp(old_sam_accountname, sam_accountname) == 0)) {
+ /* The "sAMAccountName" didn't change */
+ sam_accountname = NULL;
}
- dns_hostname = ldb_msg_find_attr_as_string(msg, "dNSHostName", "");
- talloc_free(msg);
- old_dns_hostname = samdb_search_string(ldb, ac, ac->msg->dn,
- "dNSHostName", NULL);
- if ((old_dns_hostname == NULL) || (strcasecmp(old_dns_hostname,
- dns_hostname) == 0)) {
- /* Well, if there's no old DNS hostname then we cannot do this.
- * And if old and new DNS name do match we are also finished
- * here. */
+ if ((dns_hostname == NULL) && (sam_accountname == NULL)) {
+ /* Well, there are informations missing (old name(s)) or the
+ * names didn't change. We've nothing to do and can exit here */
return LDB_SUCCESS;
}
@@ -1610,7 +1669,8 @@ static int samldb_service_principal_names_change(struct samldb_ctx *ac)
if (res->msgs[0]->num_elements == 1) {
/* Yes, we do have "servicePrincipalName"s. First we update them
* locally, that means we do always substitute the current
- * "dNSHostName" with the new one and then we append this to the
+ * "dNSHostName" with the new one and/or "sAMAccountName"
+ * without "$" with the new one and then we append this to the
* modification request (Windows behaviour). */
for (i = 0; i < res->msgs[0]->elements[0].num_values; i++) {
@@ -1627,9 +1687,14 @@ static int samldb_service_principal_names_change(struct samldb_ctx *ac)
}
while ((tok = strtok_r(NULL, "/", &pos)) != NULL) {
- if (strcasecmp(tok, old_dns_hostname) == 0) {
+ if ((dns_hostname != NULL) &&
+ (strcasecmp(tok, old_dns_hostname) == 0)) {
tok = dns_hostname;
}
+ if ((sam_accountname != NULL) &&
+ (strcasecmp(tok, old_sam_accountname) == 0)) {
+ tok = sam_accountname;
+ }
new_str = talloc_asprintf(ac->msg, "%s/%s",
new_str, tok);
@@ -1756,7 +1821,7 @@ static int samldb_modify(struct ldb_module *module, struct ldb_request *req)
{
struct ldb_context *ldb;
struct samldb_ctx *ac;
- struct ldb_message_element *el;
+ struct ldb_message_element *el, *el2;
bool modified = false;
int ret;
@@ -1857,7 +1922,8 @@ static int samldb_modify(struct ldb_module *module, struct ldb_request *req)
}
el = ldb_msg_find_element(ac->msg, "dNSHostName");
- if (el != NULL) {
+ el2 = ldb_msg_find_element(ac->msg, "sAMAccountName");
+ if ((el != NULL) || (el2 != NULL)) {
modified = true;
ret = samldb_service_principal_names_change(ac);
if (ret != LDB_SUCCESS) {
generated by cgit (git 2.34.1) at 2024-12-29 01:48:05 +0000