1 files changed, 96 insertions, 0 deletions
diff --git a/examples/shared.h b/examples/shared.h
new file mode 100644
index 0000000..e0e4cec
--- /dev/null
+++ b/examples/shared.h
@@ -0,0 +1,96 @@
+/*
+ * ngtcp2
+ *
+ * Copyright (c) 2017 ngtcp2 contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef SHARED_H
+#define SHARED_H
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif // HAVE_CONFIG_H
+
+#include <optional>
+
+#include <ngtcp2/ngtcp2.h>
+
+#include "network.h"
+
+namespace ngtcp2 {
+
+enum class AppProtocol {
+  H3,
+  HQ,
+};
+
+constexpr uint8_t HQ_ALPN[] = "\xahq-interop\x5hq-29\x5hq-30\x5hq-31\x5hq-32";
+constexpr uint8_t HQ_ALPN_DRAFT29[] = "\x5hq-29";
+constexpr uint8_t HQ_ALPN_DRAFT30[] = "\x5hq-30";
+constexpr uint8_t HQ_ALPN_DRAFT31[] = "\x5hq-31";
+constexpr uint8_t HQ_ALPN_DRAFT32[] = "\x5hq-32";
+constexpr uint8_t HQ_ALPN_V1[] = "\xahq-interop";
+
+constexpr uint8_t H3_ALPN[] = "\x2h3\x5h3-29\x5h3-30\x5h3-31\x5h3-32";
+constexpr uint8_t H3_ALPN_DRAFT29[] = "\x5h3-29";
+constexpr uint8_t H3_ALPN_DRAFT30[] = "\x5h3-30";
+constexpr uint8_t H3_ALPN_DRAFT31[] = "\x5h3-31";
+constexpr uint8_t H3_ALPN_DRAFT32[] = "\x5h3-32";
+constexpr uint8_t H3_ALPN_V1[] = "\x2h3";
+
+constexpr uint32_t QUIC_VER_DRAFT29 = 0xff00001du;
+constexpr uint32_t QUIC_VER_DRAFT30 = 0xff00001eu;
+constexpr uint32_t QUIC_VER_DRAFT31 = 0xff00001fu;
+constexpr uint32_t QUIC_VER_DRAFT32 = 0xff000020u;
+
+// msghdr_get_ecn gets ECN bits from |msg|.  |family| is the address
+// family from which packet is received.
+unsigned int msghdr_get_ecn(msghdr *msg, int family);
+
+// fd_set_ecn sets ECN bits |ecn| to |fd|.  |family| is the address
+// family of |fd|.
+void fd_set_ecn(int fd, int family, unsigned int ecn);
+
+// fd_set_recv_ecn sets socket option to |fd| so that it can receive
+// ECN bits.
+void fd_set_recv_ecn(int fd, int family);
+
+// fd_set_ip_mtu_discover sets IP(V6)_MTU_DISCOVER socket option to
+// |fd|.
+void fd_set_ip_mtu_discover(int fd, int family);
+
+// fd_set_ip_dontfrag sets IP(V6)_DONTFRAG socket option to |fd|.
+void fd_set_ip_dontfrag(int fd, int family);
+
+std::optional<Address> msghdr_get_local_addr(msghdr *msg, int family);
+
+void set_port(Address &dst, Address &src);
+
+// get_local_addr stores preferred local address (interface address)
+// in |iau| for a given destination address |remote_addr|.
+int get_local_addr(in_addr_union &iau, const Address &remote_addr);
+
+// addreq returns true if |sa| and |iau| contain the same address.
+bool addreq(const sockaddr *sa, const in_addr_union &iau);
+
+} // namespace ngtcp2
+
+#endif // SHARED_H