diff --git a/libc/bionic/bionic_netlink.cpp b/libc/bionic/bionic_netlink.cpp
new file mode 100644
index 0000000..19ca88d
--- /dev/null
+++ b/libc/bionic/bionic_netlink.cpp
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "bionic_netlink.h"
+
+#include <errno.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#include "private/ErrnoRestorer.h"
+
+NetlinkConnection::NetlinkConnection() {
+  fd_ = -1;
+
+  // The kernel keeps packets under 8KiB (NLMSG_GOODSIZE),
+  // but that's a bit too large to go on the stack.
+  size_ = 8192;
+  data_ = new char[size_];
+}
+
+NetlinkConnection::~NetlinkConnection() {
+  ErrnoRestorer errno_restorer;
+  if (fd_ != -1) close(fd_);
+  delete[] data_;
+}
+
+bool NetlinkConnection::SendRequest(int type) {
+  // Rather than force all callers to check for the unlikely event of being
+  // unable to allocate 8KiB, check here.
+  if (data_ == nullptr) return false;
+
+  // Did we open a netlink socket yet?
+  if (fd_ == -1) {
+    fd_ = socket(PF_NETLINK, SOCK_RAW | SOCK_CLOEXEC, NETLINK_ROUTE);
+  }
+
+  // Construct and send the message.
+  struct NetlinkMessage {
+    nlmsghdr hdr;
+    rtgenmsg msg;
+  } request;
+  memset(&request, 0, sizeof(request));
+  request.hdr.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST;
+  request.hdr.nlmsg_type = type;
+  request.hdr.nlmsg_len = sizeof(request);
+  request.msg.rtgen_family = AF_UNSPEC; // All families.
+  return (TEMP_FAILURE_RETRY(send(fd_, &request, sizeof(request), 0)) == sizeof(request));
+}
+
+bool NetlinkConnection::ReadResponses(void callback(void*, nlmsghdr*), void* context) {
+  // Read through all the responses, handing interesting ones to the callback.
+  ssize_t bytes_read;
+  while ((bytes_read = TEMP_FAILURE_RETRY(recv(fd_, data_, size_, 0))) > 0) {
+    nlmsghdr* hdr = reinterpret_cast<nlmsghdr*>(data_);
+    for (; NLMSG_OK(hdr, static_cast<size_t>(bytes_read)); hdr = NLMSG_NEXT(hdr, bytes_read)) {
+      if (hdr->nlmsg_type == NLMSG_DONE) return true;
+      if (hdr->nlmsg_type == NLMSG_ERROR) return false;
+      callback(context, hdr);
+    }
+  }
+
+  // We only get here if recv fails before we see a NLMSG_DONE.
+  return false;
+}