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authorAndrew Tridgell <tridge@samba.org>2011-09-30 07:43:54 +1000
committerAndrew Tridgell <tridge@samba.org>2011-10-04 15:08:58 +1100
commite9758ef94de98dd253a79547d2109bcd714f8517 (patch)
tree6cbedc778887a4e7614e5adef0ba3acd59b71ae1 /source4
parent7244e254cc28fc3f4273731a53a21ab81c330baa (diff)
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s4-dns: add all forest DCs to named.conf.update
this allows all DCs to update DNS entries
Diffstat (limited to 'source4')
-rw-r--r--source4/dsdb/dns/dns_update.c66
1 files changed, 54 insertions, 12 deletions
diff --git a/source4/dsdb/dns/dns_update.c b/source4/dsdb/dns/dns_update.c
index 6650534d13..9ab56f7d9f 100644
--- a/source4/dsdb/dns/dns_update.c
+++ b/source4/dsdb/dns/dns_update.c
@@ -35,6 +35,7 @@
#include "lib/messaging/irpc.h"
#include "param/param.h"
#include "system/filesys.h"
+#include "dsdb/common/util.h"
#include "libcli/composite/composite.h"
#include "libcli/security/dom_sid.h"
#include "librpc/gen_ndr/ndr_irpc.h"
@@ -99,28 +100,73 @@ static void dnsupdate_rebuild(struct dnsupdate_service *service)
{
int ret;
size_t size;
- struct ldb_result *res;
+ struct ldb_result *res1, *res2;
const char *tmp_path, *path, *path_static;
char *static_policies;
int fd;
unsigned int i;
- const char *attrs[] = { "sAMAccountName", NULL };
+ const char *attrs1[] = { "msDS-HasDomainNCs", NULL };
+ const char *attrs2[] = { "name", NULL };
const char *realm = lpcfg_realm(service->task->lp_ctx);
TALLOC_CTX *tmp_ctx = talloc_new(service);
const char * const *rndc_command = lpcfg_rndc_command(service->task->lp_ctx);
+ const char **dc_list;
+ int dc_count=0;
/* abort any pending script run */
TALLOC_FREE(service->confupdate.subreq);
- ret = ldb_search(service->samdb, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
- attrs, "(|(samaccountname=administrator)(&(primaryGroupID=%u)(objectClass=computer)))",
- DOMAIN_RID_DCS);
+ /* find the DNs for all the non-RODC DCs in the forest */
+ ret = dsdb_search(service->samdb, tmp_ctx, &res1, ldb_get_config_basedn(service->samdb),
+ LDB_SCOPE_SUBTREE,
+ attrs1,
+ 0,
+ "(&(objectclass=NTDSDSA)(!(msDS-isRODC=TRUE)))");
if (ret != LDB_SUCCESS) {
DEBUG(0,(__location__ ": Unable to find DCs list - %s", ldb_errstring(service->samdb)));
talloc_free(tmp_ctx);
return;
}
+ dc_list = talloc_array(tmp_ctx, const char *, 0);
+ for (i=0; i<res1->count; i++) {
+ struct ldb_dn *server_dn = res1->msgs[i]->dn;
+ struct ldb_dn *domain_dn;
+ const char *acct_name, *full_account, *dns_domain;
+
+ /* this is a nasty hack to form the account name of
+ * this DC. We do it this way as we don't necessarily
+ * have access to the domain NC, so all we have to go
+ * on is what is in the configuration partition
+ */
+
+ domain_dn = ldb_msg_find_attr_as_dn(service->samdb, tmp_ctx, res1->msgs[i], "msDS-HasDomainNCs");
+ if (domain_dn == NULL) continue;
+
+ ldb_dn_remove_child_components(server_dn, 1);
+ ret = dsdb_search_dn(service->samdb, tmp_ctx, &res2, server_dn, attrs2, 0);
+ if (ret != LDB_SUCCESS) {
+ continue;
+ }
+
+ acct_name = ldb_msg_find_attr_as_string(res2->msgs[0], "name", NULL);
+ if (acct_name == NULL) continue;
+
+ dns_domain = samdb_dn_to_dns_domain(tmp_ctx, domain_dn);
+ if (dns_domain == NULL) {
+ continue;
+ }
+
+ full_account = talloc_asprintf(tmp_ctx, "%s$@%s", acct_name, dns_domain);
+ if (full_account == NULL) continue;
+
+ dc_list = talloc_realloc(tmp_ctx, dc_list, const char *, dc_count+1);
+ if (dc_list == NULL) {
+ continue;
+ }
+ dc_list[dc_count++] = full_account;
+ }
+
path = lpcfg_parm_string(service->task->lp_ctx, NULL, "dnsupdate", "path");
if (path == NULL) {
path = lpcfg_private_path(tmp_ctx, service->task->lp_ctx, "named.conf.update");
@@ -156,14 +202,10 @@ static void dnsupdate_rebuild(struct dnsupdate_service *service)
dprintf(fd, "/* End of static entries */\n");
}
dprintf(fd, "\tgrant %s ms-self * A AAAA;\n", realm);
+ dprintf(fd, "\tgrant Administrator@%s wildcard * A AAAA SRV CNAME;\n", realm);
- for (i=0; i<res->count; i++) {
- const char *acctname;
- acctname = ldb_msg_find_attr_as_string(res->msgs[i],
- "sAMAccountName", NULL);
- if (!acctname) continue;
- dprintf(fd, "\tgrant %s@%s wildcard * A AAAA SRV CNAME;\n",
- acctname, realm);
+ for (i=0; i<dc_count; i++) {
+ dprintf(fd, "\tgrant %s wildcard * A AAAA SRV CNAME;\n", dc_list[i]);
}
dprintf(fd, "};\n");
close(fd);