Move resolver public headers to separate include path
Additionally rename functions and structs to eliminate those ugly
underscores from the public API (with the notable exception of
__res_params, which will come in its own separate change to keep this
one from growing too large).
Test: build, flash, then 'atest netd_integration_test'
Change-Id: I7e9b0ee6cdbec889e9c35b5a17b5daa65533686e
diff --git a/resolv/include/netd_resolv/params.h b/resolv/include/netd_resolv/params.h
new file mode 100644
index 0000000..60b9b54
--- /dev/null
+++ b/resolv/include/netd_resolv/params.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef NETD_RESOLV_PARAMS_H
+#define NETD_RESOLV_PARAMS_H
+
+#include <stdint.h>
+
+/* Hard-coded defines */
+#define MAXNS 4 /* max # name servers we'll track */
+#define MAXDNSRCH 6 /* max # domains in search path */
+#define MAXDNSRCHPATH 256 /* max length of domain search paths */
+#define MAXNSSAMPLES 64 /* max # samples to store per server */
+
+// Per-netid configuration parameters passed from netd to the resolver
+// TODO: rename to res_params
+struct __res_params {
+ uint16_t sample_validity; // sample lifetime in s
+ // threshold of success / total samples below which a server is considered broken
+ uint8_t success_threshold; // 0: disable, value / 100 otherwise
+ uint8_t min_samples; // min # samples needed for statistics to be considered meaningful
+ uint8_t max_samples; // max # samples taken into account for statistics
+ int base_timeout_msec; // base query retry timeout (if 0, use RES_TIMEOUT)
+};
+
+typedef enum { res_goahead, res_nextns, res_modified, res_done, res_error } res_sendhookact;
+
+typedef res_sendhookact (*res_send_qhook)(struct sockaddr* const*, const uint8_t**, int*, uint8_t*,
+ int, int*);
+
+typedef res_sendhookact (*res_send_rhook)(const struct sockaddr*, const uint8_t*, int, uint8_t*,
+ int, int*);
+
+#define LIBNETD_RESOLV_PUBLIC extern "C" [[gnu::visibility("default")]]
+
+#endif // NETD_RESOLV_PARAMS_H