#include "lib/util/tevent_werror.h"
#include "auth/auth.h"
#include "auth/credentials/credentials.h"
+#include "librpc/gen_ndr/ndr_irpc.h"
+#include "lib/messaging/irpc.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_DNS
if (req == NULL) {
return NULL;
}
+ state->state.mem_ctx = state;
state->in = in;
state->dns = dns;
tevent_req_werror(req, WERR_INVALID_PARAM);
return tevent_req_post(req, ev);
}
- dump_data(8, in->data, in->length);
+ dump_data_dbgc(DBGC_DNS, 8, in->data, in->length);
ndr_err = ndr_pull_struct_blob(
in, state, &state->in_packet,
tevent_req_done(req);
return tevent_req_post(req, ev);
}
- if (DEBUGLVL(8)) {
- NDR_PRINT_DEBUG(dns_name_packet, &state->in_packet);
+ if (DEBUGLVLC(DBGC_DNS, 8)) {
+ NDR_PRINT_DEBUGC(DBGC_DNS, dns_name_packet, &state->in_packet);
}
ret = dns_verify_tsig(dns, state, &state->state, &state->in_packet, in);
return tevent_req_post(req, ev);
}
+ if (state->in_packet.operation & DNS_FLAG_REPLY) {
+ DEBUG(1, ("Won't reply to replies.\n"));
+ tevent_req_werror(req, WERR_INVALID_PARAM);
+ return tevent_req_post(req, ev);
+ }
+
state->state.flags = state->in_packet.operation;
state->state.flags |= DNS_FLAG_REPLY;
}
}
- if (DEBUGLVL(8)) {
- NDR_PRINT_DEBUG(dns_name_packet, &state->out_packet);
+ if (DEBUGLVLC(DBGC_DNS, 8)) {
+ NDR_PRINT_DEBUGC(DBGC_DNS, dns_name_packet, &state->out_packet);
}
ndr_err = ndr_push_struct_blob(
/*
setup our listening sockets on the configured network interfaces
*/
-static NTSTATUS dns_startup_interfaces(struct dns_server *dns, struct loadparm_context *lp_ctx,
+static NTSTATUS dns_startup_interfaces(struct dns_server *dns,
struct interface *ifaces)
{
const struct model_ops *model_ops;
NT_STATUS_NOT_OK_RETURN(status);
}
} else {
- const char **wcard;
- wcard = iface_list_wildcard(tmp_ctx, lp_ctx);
+ int num_binds = 0;
+ char **wcard;
+ wcard = iface_list_wildcard(tmp_ctx);
if (wcard == NULL) {
DEBUG(0, ("No wildcard address available\n"));
return NT_STATUS_INTERNAL_ERROR;
for (i = 0; wcard[i] != NULL; i++) {
status = dns_add_socket(dns, model_ops, "dns", wcard[i],
DNS_SERVICE_PORT);
- NT_STATUS_NOT_OK_RETURN(status);
+ if (NT_STATUS_IS_OK(status)) {
+ num_binds++;
+ }
+ }
+ if (num_binds == 0) {
+ talloc_free(tmp_ctx);
+ return NT_STATUS_INVALID_PARAMETER_MIX;
}
}
return buffer;
}
+static NTSTATUS dns_server_reload_zones(struct dns_server *dns)
+{
+ int ret;
+ static const char * const attrs[] = { "name", NULL};
+ struct ldb_result *res;
+ int i;
+ struct dns_server_zone *new_list = NULL;
+ struct dns_server_zone *old_list = NULL;
+ struct dns_server_zone *old_zone;
+
+ // TODO: this search does not work against windows
+ ret = dsdb_search(dns->samdb, dns, &res, NULL, LDB_SCOPE_SUBTREE,
+ attrs, DSDB_SEARCH_SEARCH_ALL_PARTITIONS, "(objectClass=dnsZone)");
+ if (ret != LDB_SUCCESS) {
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+
+ TYPESAFE_QSORT(res->msgs, res->count, dns_server_sort_zones);
+
+ for (i=0; i < res->count; i++) {
+ struct dns_server_zone *z;
+
+ z = talloc_zero(dns, struct dns_server_zone);
+ if (z == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ z->name = ldb_msg_find_attr_as_string(res->msgs[i], "name", NULL);
+ z->dn = talloc_move(z, &res->msgs[i]->dn);
+ /*
+ * Ignore the RootDNSServers zone and zones that we don't support yet
+ * RootDNSServers should never be returned (Windows DNS server don't)
+ * ..TrustAnchors should never be returned as is, (Windows returns
+ * TrustAnchors) and for the moment we don't support DNSSEC so we'd better
+ * not return this zone.
+ */
+ if ((strcmp(z->name, "RootDNSServers") == 0) ||
+ (strcmp(z->name, "..TrustAnchors") == 0))
+ {
+ DEBUG(10, ("Ignoring zone %s\n", z->name));
+ talloc_free(z);
+ continue;
+ }
+ DLIST_ADD_END(new_list, z, NULL);
+ }
+
+ old_list = dns->zones;
+ dns->zones = new_list;
+ while ((old_zone = DLIST_TAIL(old_list)) != NULL) {
+ DLIST_REMOVE(old_list, old_zone);
+ talloc_free(old_zone);
+ }
+
+ return NT_STATUS_OK;
+}
+
+/**
+ * Called when the internal DNS server should reload the zones from DB, for
+ * example, when zones are added or deleted through RPC or replicated by
+ * inbound DRS.
+ */
+static NTSTATUS dns_reload_zones(struct irpc_message *msg,
+ struct dnssrv_reload_dns_zones *r)
+{
+ struct dns_server *dns;
+
+ dns = talloc_get_type(msg->private_data, struct dns_server);
+ if (dns == NULL) {
+ r->out.result = NT_STATUS_INTERNAL_ERROR;
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ r->out.result = dns_server_reload_zones(dns);
+
+ return NT_STATUS_OK;
+}
+
static void dns_task_init(struct task_server *task)
{
struct dns_server *dns;
NTSTATUS status;
struct interface *ifaces = NULL;
int ret;
- struct ldb_result *res;
- static const char * const attrs[] = { "name", NULL};
static const char * const attrs_none[] = { NULL};
- unsigned int i;
struct ldb_message *dns_acc;
char *hostname_lower;
char *dns_spn;
}
dns->task = task;
+ /*FIXME: Make this a configurable option */
+ dns->max_payload = 4096;
dns->server_credentials = cli_credentials_init(dns);
if (!dns->server_credentials) {
return;
}
- // TODO: this search does not work against windows
- ret = dsdb_search(dns->samdb, dns, &res, NULL, LDB_SCOPE_SUBTREE,
- attrs, DSDB_SEARCH_SEARCH_ALL_PARTITIONS, "(objectClass=dnsZone)");
- if (ret != LDB_SUCCESS) {
- task_server_terminate(task,
- "dns: failed to look up root DNS zones",
- true);
+ status = dns_server_reload_zones(dns);
+ if (!NT_STATUS_IS_OK(status)) {
+ task_server_terminate(task, "dns: failed to load DNS zones", true);
return;
}
- TYPESAFE_QSORT(res->msgs, res->count, dns_server_sort_zones);
-
- for (i=0; i < res->count; i++) {
- struct dns_server_zone *z;
-
- z = talloc_zero(dns, struct dns_server_zone);
- if (z == NULL) {
- task_server_terminate(task, "dns failed to allocate memory", true);
- }
+ status = dns_startup_interfaces(dns, ifaces);
+ if (!NT_STATUS_IS_OK(status)) {
+ task_server_terminate(task, "dns failed to setup interfaces", true);
+ return;
+ }
- z->name = ldb_msg_find_attr_as_string(res->msgs[i], "name", NULL);
- z->dn = talloc_move(z, &res->msgs[i]->dn);
- /*
- * Ignore the RootDNSServers zone and zones that we don't support yet
- * RootDNSServers should never be returned (Windows DNS server don't)
- * ..TrustAnchors should never be returned as is, (Windows returns
- * TrustAnchors) and for the moment we don't support DNSSEC so we'd better
- * not return this zone.
- */
- if ((strcmp(z->name, "RootDNSServers") == 0) ||
- (strcmp(z->name, "..TrustAnchors") == 0))
- {
- DEBUG(10, ("Ignoring zone %s\n", z->name));
- talloc_free(z);
- continue;
- }
- DLIST_ADD_END(dns->zones, z, NULL);
+ /* Setup the IRPC interface and register handlers */
+ status = irpc_add_name(task->msg_ctx, "dnssrv");
+ if (!NT_STATUS_IS_OK(status)) {
+ task_server_terminate(task, "dns: failed to register IRPC name", true);
+ return;
}
- status = dns_startup_interfaces(dns, task->lp_ctx, ifaces);
+ status = IRPC_REGISTER(task->msg_ctx, irpc, DNSSRV_RELOAD_DNS_ZONES,
+ dns_reload_zones, dns);
if (!NT_STATUS_IS_OK(status)) {
- task_server_terminate(task, "dns failed to setup interfaces", true);
+ task_server_terminate(task, "dns: failed to setup reload handler", true);
return;
}
}
git.samba.org / obnox / samba / samba-obnox.git / blobdiff