3 #include <netinet/in.h>
4 #include <netinet/tcp.h>
9 #include <sys/socket.h>
14 #include "serverpool.h"
20 extern ServerPool *servers;
22 int create_server_socket(const sockaddr_in6 &addr, SocketType socket_type)
24 // NOTE: We set as non-blocking, so the acceptor thread can notice that we want to shut it down.
26 if (socket_type == TCP_SOCKET) {
27 server_sock = socket(PF_INET6, SOCK_STREAM | SOCK_NONBLOCK, IPPROTO_TCP);
29 assert(socket_type == UDP_SOCKET);
30 server_sock = socket(PF_INET6, SOCK_DGRAM | SOCK_NONBLOCK, IPPROTO_UDP);
32 if (server_sock == -1) {
38 if (setsockopt(server_sock, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)) == -1) {
39 log_perror("setsockopt(SO_REUSEADDR)");
43 // We want dual-stack sockets. (Sorry, OpenBSD and Windows XP...)
45 if (setsockopt(server_sock, IPPROTO_IPV6, IPV6_V6ONLY, &zero, sizeof(zero)) == -1) {
46 log_perror("setsockopt(IPV6_V6ONLY)");
50 if (bind(server_sock, reinterpret_cast<const sockaddr *>(&addr), sizeof(addr)) == -1) {
55 if (socket_type == TCP_SOCKET) {
56 if (listen(server_sock, 128) == -1) {
65 sockaddr_in6 create_any_address(int port)
68 memset(&sin6, 0, sizeof(sin6));
69 sin6.sin6_family = AF_INET6;
70 sin6.sin6_port = htons(port);
74 sockaddr_in6 extract_address_from_acceptor_proto(const AcceptorProto &proto)
77 memset(&sin6, 0, sizeof(sin6));
78 sin6.sin6_family = AF_INET6;
80 if (!proto.addr().empty()) {
81 int ret = inet_pton(AF_INET6, proto.addr().c_str(), &sin6.sin6_addr);
85 sin6.sin6_port = htons(proto.port());
89 Acceptor::Acceptor(int server_sock, const sockaddr_in6 &addr,
90 const string &certificate_chain, const string &private_key)
91 : server_sock(server_sock),
93 certificate_chain(certificate_chain),
94 private_key(private_key)
98 Acceptor::Acceptor(const AcceptorProto &serialized)
99 : server_sock(serialized.server_sock()),
100 addr(extract_address_from_acceptor_proto(serialized)),
101 certificate_chain(serialized.certificate_chain()),
102 private_key(serialized.private_key())
106 AcceptorProto Acceptor::serialize() const
108 char buf[INET6_ADDRSTRLEN];
109 inet_ntop(addr.sin6_family, &addr.sin6_addr, buf, sizeof(buf));
111 AcceptorProto serialized;
112 serialized.set_server_sock(server_sock);
113 serialized.set_addr(buf);
114 serialized.set_port(ntohs(addr.sin6_port));
115 serialized.set_certificate_chain(certificate_chain);
116 serialized.set_private_key(private_key);
120 void Acceptor::close_socket()
122 safe_close(server_sock);
125 void Acceptor::do_work()
127 while (!should_stop()) {
128 if (!wait_for_activity(server_sock, POLLIN, nullptr)) {
133 socklen_t addrlen = sizeof(addr);
135 // Get a new socket, and set it as nonblocking.
136 int sock = accept4(server_sock, reinterpret_cast<sockaddr *>(&addr), &addrlen, SOCK_NONBLOCK);
137 if (sock == -1 && errno == EINTR) {
141 log_perror("accept");
146 // Enable TCP_CORK for maximum throughput. In the rare case that the
147 // stream stops entirely, this will cause a small delay (~200 ms)
148 // before the last part is sent out, but that should be fine.
150 if (setsockopt(sock, SOL_TCP, TCP_CORK, &one, sizeof(one)) == -1) {
151 log_perror("setsockopt(TCP_CORK)");
152 // Can still continue.
155 // Pick a server, round-robin, and hand over the socket to it.
156 servers->add_client(sock, this);