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authorGünther Deschner <gd@samba.org>2012-09-25 11:09:45 +0200
committerGünther Deschner <gd@samba.org>2012-10-02 16:22:31 +0200
commit0eded14f19806e87b2205677064d1413bcb86d38 (patch)
treeef3304373e24b509472ccdbe419b07f25236e704 /source3/utils
parentec23d0a3eeeeb2f3969d4d113d80bd82cb1dbbcd (diff)
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s3-net: give more control how to update/register DNS entries.
Guenther
Diffstat (limited to 'source3/utils')
-rw-r--r--source3/utils/net_ads.c13
-rw-r--r--source3/utils/net_dns.c78
-rw-r--r--source3/utils/net_dns.h9
3 files changed, 76 insertions, 24 deletions
diff --git a/source3/utils/net_ads.c b/source3/utils/net_ads.c
index ffb79991de..7648dc7797 100644
--- a/source3/utils/net_ads.c
+++ b/source3/utils/net_ads.c
@@ -1206,6 +1206,17 @@ static NTSTATUS net_update_dns_internal(struct net_context *c,
for (i=0; i < ns_count; i++) {
+ uint32_t flags = DNS_UPDATE_SIGNED |
+ DNS_UPDATE_UNSIGNED |
+ DNS_UPDATE_UNSIGNED_SUFFICIENT |
+ DNS_UPDATE_PROBE |
+ DNS_UPDATE_PROBE_SUFFICIENT;
+
+ if (c->opt_force) {
+ flags &= ~DNS_UPDATE_PROBE_SUFFICIENT;
+ flags &= ~DNS_UPDATE_UNSIGNED_SUFFICIENT;
+ }
+
status = NT_STATUS_UNSUCCESSFUL;
/* Now perform the dns update - we'll try non-secure and if we fail,
@@ -1213,7 +1224,7 @@ static NTSTATUS net_update_dns_internal(struct net_context *c,
fstrcpy( dns_server, nameservers[i].hostname );
- dns_err = DoDNSUpdate(dns_server, dnsdomain, machine_name, addrs, num_addrs);
+ dns_err = DoDNSUpdate(dns_server, dnsdomain, machine_name, addrs, num_addrs, flags);
if (ERR_DNS_IS_OK(dns_err)) {
status = NT_STATUS_OK;
goto done;
diff --git a/source3/utils/net_dns.c b/source3/utils/net_dns.c
index 437b4c1b96..9bbefdb8b1 100644
--- a/source3/utils/net_dns.c
+++ b/source3/utils/net_dns.c
@@ -40,6 +40,14 @@ DNS_ERROR DoDNSUpdate(char *pszServerName,
OM_uint32 minor;
struct dns_update_request *req, *resp;
+ DEBUG(10,("DoDNSUpdate called with flags: 0x%08x\n", flags));
+
+ if (!(flags & DNS_UPDATE_SIGNED) &&
+ !(flags & DNS_UPDATE_UNSIGNED) &&
+ !(flags & DNS_UPDATE_PROBE)) {
+ return ERROR_DNS_INVALID_PARAMETER;
+ }
+
if ( (num_addrs <= 0) || !sslist ) {
return ERROR_DNS_INVALID_PARAMETER;
}
@@ -53,45 +61,65 @@ DNS_ERROR DoDNSUpdate(char *pszServerName,
goto error;
}
- /*
- * Probe if everything's fine
- */
+ if (flags & DNS_UPDATE_PROBE) {
- err = dns_create_probe(mem_ctx, pszDomainName, pszHostName,
- num_addrs, sslist, &req);
- if (!ERR_DNS_IS_OK(err)) goto error;
+ /*
+ * Probe if everything's fine
+ */
- err = dns_update_transaction(mem_ctx, conn, req, &resp);
- if (!ERR_DNS_IS_OK(err)) goto error;
+ err = dns_create_probe(mem_ctx, pszDomainName, pszHostName,
+ num_addrs, sslist, &req);
+ if (!ERR_DNS_IS_OK(err)) goto error;
- if (dns_response_code(resp->flags) == DNS_NO_ERROR) {
- TALLOC_FREE(mem_ctx);
- return ERROR_DNS_SUCCESS;
+ err = dns_update_transaction(mem_ctx, conn, req, &resp);
+ if (!ERR_DNS_IS_OK(err)) goto error;
+
+ if (!ERR_DNS_IS_OK(err)) {
+ DEBUG(3,("DoDNSUpdate: failed to probe DNS\n"));
+ }
+
+ if ((dns_response_code(resp->flags) == DNS_NO_ERROR) &&
+ (flags & DNS_UPDATE_PROBE_SUFFICIENT)) {
+ TALLOC_FREE(mem_ctx);
+ return ERROR_DNS_SUCCESS;
+ }
}
- /*
- * First try without signing
- */
+ if (flags & DNS_UPDATE_UNSIGNED) {
- err = dns_create_update_request(mem_ctx, pszDomainName, pszHostName,
- sslist, num_addrs, &req);
- if (!ERR_DNS_IS_OK(err)) goto error;
+ /*
+ * First try without signing
+ */
- err = dns_update_transaction(mem_ctx, conn, req, &resp);
- if (!ERR_DNS_IS_OK(err)) goto error;
+ err = dns_create_update_request(mem_ctx, pszDomainName, pszHostName,
+ sslist, num_addrs, &req);
+ if (!ERR_DNS_IS_OK(err)) goto error;
+
+ err = dns_update_transaction(mem_ctx, conn, req, &resp);
+ if (!ERR_DNS_IS_OK(err)) goto error;
+
+ if (!ERR_DNS_IS_OK(err)) {
+ DEBUG(3,("DoDNSUpdate: unsigned update failed\n"));
+ }
- if (dns_response_code(resp->flags) == DNS_NO_ERROR) {
- TALLOC_FREE(mem_ctx);
- return ERROR_DNS_SUCCESS;
+ if ((dns_response_code(resp->flags) == DNS_NO_ERROR) &&
+ (flags & DNS_UPDATE_UNSIGNED_SUFFICIENT)) {
+ TALLOC_FREE(mem_ctx);
+ return ERROR_DNS_SUCCESS;
+ }
}
/*
* Okay, we have to try with signing
*/
- {
+ if (flags & DNS_UPDATE_SIGNED) {
gss_ctx_id_t gss_context;
char *keyname;
+ err = dns_create_update_request(mem_ctx, pszDomainName, pszHostName,
+ sslist, num_addrs, &req);
+ if (!ERR_DNS_IS_OK(err)) goto error;
+
if (!(keyname = dns_generate_keyname( mem_ctx ))) {
err = ERROR_DNS_NO_MEMORY;
goto error;
@@ -122,6 +150,10 @@ DNS_ERROR DoDNSUpdate(char *pszServerName,
err = (dns_response_code(resp->flags) == DNS_NO_ERROR) ?
ERROR_DNS_SUCCESS : ERROR_DNS_UPDATE_FAILED;
+
+ if (!ERR_DNS_IS_OK(err)) {
+ DEBUG(3,("DoDNSUpdate: signed update failed\n"));
+ }
}
diff --git a/source3/utils/net_dns.h b/source3/utils/net_dns.h
index 19bf86683e..31e541be99 100644
--- a/source3/utils/net_dns.h
+++ b/source3/utils/net_dns.h
@@ -19,6 +19,15 @@
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+/* flags for DoDNSUpdate */
+
+#define DNS_UPDATE_SIGNED 0x01
+#define DNS_UPDATE_SIGNED_SUFFICIENT 0x02
+#define DNS_UPDATE_UNSIGNED 0x04
+#define DNS_UPDATE_UNSIGNED_SUFFICIENT 0x08
+#define DNS_UPDATE_PROBE 0x10
+#define DNS_UPDATE_PROBE_SUFFICIENT 0x20
+
#if defined(WITH_DNS_UPDATES)
#include "../lib/addns/dns.h"