+/* These functions are for use here only (public because SPNEGO must
+ * use them for recursion) */
+NTSTATUS gensec_wrap_packets(struct gensec_security *gensec_security,
+ TALLOC_CTX *mem_ctx,
+ const DATA_BLOB *in,
+ DATA_BLOB *out,
+ size_t *len_processed)
+{
+ if (!gensec_security->ops->wrap_packets) {
+ NTSTATUS nt_status;
+ size_t max_input_size;
+ DATA_BLOB unwrapped, wrapped;
+ max_input_size = gensec_max_input_size(gensec_security);
+ unwrapped = data_blob_const(in->data, MIN(max_input_size, (size_t)in->length));
+
+ nt_status = gensec_wrap(gensec_security,
+ mem_ctx,
+ &unwrapped, &wrapped);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ talloc_free(mem_ctx);
+ return nt_status;
+ }
+
+ *out = data_blob_talloc(mem_ctx, NULL, 4);
+ if (!out->data) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ RSIVAL(out->data, 0, wrapped.length);
+
+ nt_status = data_blob_append(mem_ctx, out, wrapped.data, wrapped.length);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return nt_status;
+ }
+ *len_processed = unwrapped.length;
+ return nt_status;
+ }
+ return gensec_security->ops->wrap_packets(gensec_security, mem_ctx, in, out,
+ len_processed);
+}
+
+/* These functions are for use here only (public because SPNEGO must
+ * use them for recursion) */
+NTSTATUS gensec_unwrap_packets(struct gensec_security *gensec_security,
+ TALLOC_CTX *mem_ctx,
+ const DATA_BLOB *in,
+ DATA_BLOB *out,
+ size_t *len_processed)
+{
+ if (!gensec_security->ops->unwrap_packets) {
+ DATA_BLOB wrapped;
+ NTSTATUS nt_status;
+ size_t packet_size;
+ if (in->length < 4) {
+ /* Missing the header we already had! */
+ DEBUG(0, ("Asked to unwrap packet of bogus length! How did we get the short packet?!\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ packet_size = RIVAL(in->data, 0);
+
+ wrapped = data_blob_const(in->data + 4, packet_size);
+
+ if (wrapped.length > (in->length - 4)) {
+ DEBUG(0, ("Asked to unwrap packed of bogus length %d > %d! How did we get this?!\n",
+ wrapped.length, in->length - 4));
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ nt_status = gensec_unwrap(gensec_security,
+ mem_ctx,
+ &wrapped, out);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return nt_status;
+ }
+
+ *len_processed = packet_size + 4;
+ return nt_status;
+ }
+ return gensec_security->ops->unwrap_packets(gensec_security, mem_ctx, in, out,
+ len_processed);
+}
+
+/* These functions are for use here only (public because SPNEGO must
+ * use them for recursion) */
+NTSTATUS gensec_packet_full_request(struct gensec_security *gensec_security,
+ DATA_BLOB blob, size_t *size)
+{
+ if (gensec_security->ops->packet_full_request) {
+ return gensec_security->ops->packet_full_request(gensec_security,
+ blob, size);
+ }
+ if (gensec_security->ops->unwrap_packets) {
+ if (blob.length) {
+ *size = blob.length;
+ return NT_STATUS_OK;
+ }
+ return STATUS_MORE_ENTRIES;
+ }
+ return packet_full_request_u32(NULL, blob, size);
+}
+
+static NTSTATUS gensec_socket_full_request(void *private, DATA_BLOB blob, size_t *size)
+{
+ struct gensec_socket *gensec_socket = talloc_get_type(private, struct gensec_socket);
+ struct gensec_security *gensec_security = gensec_socket->gensec_security;
+ return gensec_packet_full_request(gensec_security, blob, size);
+}
+