Fijxu/nginx-quic
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Stream: set SO_REUSEADDR for UDP upstream sockets.

Browse source 
The option is only set if the socket is bound to a specific port to allow
several such sockets coexist at the same time.  This is required, for example,
when nginx acts as a transparent proxy and receives two datagrams from the same
client in a short time.

The feature is only implemented for Linux.
This commit is contained in:
Roman Arutyunyan 2016-06-20 12:48:47 +03:00
parent 0b9eadf910
commit feb8fe61ff
1 changed files with 25 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

26
src/event/ngx_event_connect.c
View file

@ -21,6 +21,9 @@ ngx_int_t
ngx_event_connect_peer(ngx_peer_connection_t *pc)
{
int rc, type;
#if (NGX_HAVE_IP_BIND_ADDRESS_NO_PORT || NGX_LINUX)
in_port_t port;
#endif
ngx_int_t event;
ngx_err_t err;
ngx_uint_t level;
@ -87,9 +90,13 @@ ngx_event_connect_peer(ngx_peer_connection_t *pc)
}
#endif
#if (NGX_HAVE_IP_BIND_ADDRESS_NO_PORT || NGX_LINUX)
port = ngx_inet_get_port(pc->sockaddr);
#endif
#if (NGX_HAVE_IP_BIND_ADDRESS_NO_PORT)
if (pc->sockaddr->sa_family != AF_UNIX) {
if (pc->sockaddr->sa_family != AF_UNIX && port == 0) {
static int bind_address_no_port = 1;
if (bind_address_no_port) {
@ -111,6 +118,23 @@ ngx_event_connect_peer(ngx_peer_connection_t *pc)
}
}
#endif
#if (NGX_LINUX)
if (pc->type == SOCK_DGRAM && port != 0) {
int reuse_addr = 1;
if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR,
(const void *) &reuse_addr, sizeof(int))
== -1)
{
ngx_log_error(NGX_LOG_ALERT, pc->log, ngx_socket_errno,
"setsockopt(SO_REUSEADDR) failed");
goto failed;
}
}
#endif
if (bind(s, pc->local->sockaddr, pc->local->socklen) == -1) {