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Add --tcp-incoming-rcvbuf and --tcp-outgoing-rcvbuf which allow precise control over TCP receive buffers.

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Not Sure
2020-12-23 07:13:14 +08:00
committed by Max Lv
parent 920dbac0d3
commit 36d9993bbf
8 changed files with 177 additions and 1 deletions
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src/server.c
+40
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@@ -110,7 +110,9 @@ static void resolv_free_cb(void *data);
int verbose = 0;
int reuse_port = 0;
int tcp_incoming_sndbuf = 0;
int tcp_incoming_rcvbuf = 0;
int tcp_outgoing_sndbuf = 0;
int tcp_outgoing_rcvbuf = 0;
int is_bind_local_addr = 0;
struct sockaddr_storage local_addr_v4;
@@ -477,6 +479,10 @@ connect_to_remote(EV_P_ struct addrinfo *res,
setsockopt(sockfd, SOL_SOCKET, SO_SNDBUF, &tcp_outgoing_sndbuf, sizeof(int));
}
if (tcp_outgoing_rcvbuf > 0) {
setsockopt(sockfd, SOL_SOCKET, SO_RCVBUF, &tcp_outgoing_rcvbuf, sizeof(int));
}
// setup remote socks
if (setnonblocking(sockfd) == -1)
@@ -1549,6 +1555,10 @@ accept_cb(EV_P_ ev_io *w, int revents)
setsockopt(serverfd, SOL_SOCKET, SO_SNDBUF, &tcp_incoming_sndbuf, sizeof(int));
}
if (tcp_incoming_rcvbuf > 0) {
setsockopt(serverfd, SOL_SOCKET, SO_RCVBUF, &tcp_incoming_rcvbuf, sizeof(int));
}
setnonblocking(serverfd);
server_t *server = new_server(serverfd, listener);
@@ -1589,7 +1599,9 @@ main(int argc, char **argv)
{ "fast-open", no_argument, NULL, GETOPT_VAL_FAST_OPEN },
{ "reuse-port", no_argument, NULL, GETOPT_VAL_REUSE_PORT },
{ "tcp-incoming-sndbuf", required_argument, NULL, GETOPT_VAL_TCP_INCOMING_SNDBUF },
{ "tcp-incoming-rcvbuf", required_argument, NULL, GETOPT_VAL_TCP_INCOMING_RCVBUF },
{ "tcp-outgoing-sndbuf", required_argument, NULL, GETOPT_VAL_TCP_OUTGOING_SNDBUF },
{ "tcp-outgoing-rcvbuf", required_argument, NULL, GETOPT_VAL_TCP_OUTGOING_RCVBUF },
{ "no-delay", no_argument, NULL, GETOPT_VAL_NODELAY },
{ "acl", required_argument, NULL, GETOPT_VAL_ACL },
{ "manager-address", required_argument, NULL,
@@ -1650,9 +1662,15 @@ main(int argc, char **argv)
case GETOPT_VAL_TCP_INCOMING_SNDBUF:
tcp_incoming_sndbuf = atoi(optarg);
break;
case GETOPT_VAL_TCP_INCOMING_RCVBUF:
tcp_incoming_rcvbuf = atoi(optarg);
break;
case GETOPT_VAL_TCP_OUTGOING_SNDBUF:
tcp_outgoing_sndbuf = atoi(optarg);
break;
case GETOPT_VAL_TCP_OUTGOING_RCVBUF:
tcp_outgoing_rcvbuf = atoi(optarg);
break;
case 's':
if (server_num < MAX_REMOTE_NUM) {
parse_addr(optarg, &server_addr[server_num++]);
@@ -1782,9 +1800,15 @@ main(int argc, char **argv)
if (tcp_incoming_sndbuf == 0) {
tcp_incoming_sndbuf = conf->tcp_incoming_sndbuf;
}
if (tcp_incoming_rcvbuf == 0) {
tcp_incoming_rcvbuf = conf->tcp_incoming_rcvbuf;
}
if (tcp_outgoing_sndbuf == 0) {
tcp_outgoing_sndbuf = conf->tcp_outgoing_sndbuf;
}
if (tcp_outgoing_rcvbuf == 0) {
tcp_outgoing_rcvbuf = conf->tcp_outgoing_rcvbuf;
}
if (fast_open == 0) {
fast_open = conf->fast_open;
}
@@ -1820,6 +1844,14 @@ main(int argc, char **argv)
LOGI("set TCP incoming connection send buffer size to %d", tcp_incoming_sndbuf);
}
if (tcp_incoming_rcvbuf != 0 && tcp_incoming_rcvbuf < SOCKET_BUF_SIZE) {
tcp_incoming_rcvbuf = 0;
}
if (tcp_incoming_rcvbuf != 0) {
LOGI("set TCP incoming connection receive buffer size to %d", tcp_incoming_rcvbuf);
}
if (tcp_outgoing_sndbuf != 0 && tcp_outgoing_sndbuf < SOCKET_BUF_SIZE) {
tcp_outgoing_sndbuf = 0;
}
@@ -1828,6 +1860,14 @@ main(int argc, char **argv)
LOGI("set TCP outgoing connection send buffer size to %d", tcp_outgoing_sndbuf);
}
if (tcp_outgoing_rcvbuf != 0 && tcp_outgoing_rcvbuf < SOCKET_BUF_SIZE) {
tcp_outgoing_rcvbuf = 0;
}
if (tcp_outgoing_rcvbuf != 0) {
LOGI("set TCP outgoing connection receive buffer size to %d", tcp_outgoing_recvbuf);
}
if (server_num == 0) {
server_addr[server_num++].host = "0.0.0.0";
}