core: Add TCP_USER_TIMEOUT socket option on listening socket.

Use tcp_send_timeout config option also on listening socket to timeout outbound messages sent on passive inbound connections.
kamailio · Aug 7, 2023 · d893f3a · d893f3a
1 parent 6344554
commit d893f3a
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Showing 2 changed files with 19 additions and 0 deletions.
diff --git a/src/core/tcp_main.c b/src/core/tcp_main.c
@@ -3172,6 +3172,18 @@ int tcp_init(struct socket_info *sock_info)
 	}
 #endif
 	init_sock_keepalive(sock_info->socket);
+#ifdef HAVE_TCP_USER_TIMEOUT
+	if((optval = TICKS_TO_S(cfg_get(tcp, tcp_cfg, send_timeout)))) {
+		optval *= 1000;
+		if(setsockopt(sock_info->socket, IPPROTO_TCP, TCP_USER_TIMEOUT, &optval,
+				   sizeof(optval))
+				< 0) {
+			LM_WARN("failed to set TCP_USER_TIMEOUT: %s\n", strerror(errno));
+		} else {
+			LM_INFO("Set TCP_USER_TIMEOUT=%d ms\n", optval);
+		}
+	}
+#endif
 	if(bind(sock_info->socket, &addr->s, sockaddru_len(*addr)) == -1) {
 		LM_ERR("bind(%x, %p, %d) on %s:%d : %s\n", sock_info->socket, &addr->s,
 				(unsigned)sockaddru_len(*addr), sock_info->address_str.s,

diff --git a/src/core/tcp_options.h b/src/core/tcp_options.h
@@ -68,6 +68,13 @@
 #endif /* __OS_ */
 #endif /* NO_TCP_LINGER2 */
 
+/* tcp user_timeout */
+#ifndef NO_TCP_USER_TIMEOUT
+#ifdef __OS_linux
+#define HAVE_TCP_USER_TIMEOUT
+#endif /* __OS_ */
+#endif /* NO_TCP_LINGER2 */
+
 /* keepalive */
 #ifndef NO_TCP_KEEPALIVE
 #define HAVE_SO_KEEPALIVE