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4440. [func] Enable TCP fast open support when available on the

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server side. [RT #42866]
This commit is contained in:
Mark Andrews
2016-08-12 15:31:33 +10:00
parent c7e021e2e6
commit a977bc4c8e
8 changed files with 123 additions and 0 deletions
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14
lib/isc/win32/socket.c
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@@ -3319,6 +3319,9 @@ isc__socket_filter(isc_socket_t *sock, const char *filter) {
isc_result_t
isc__socket_listen(isc_socket_t *sock, unsigned int backlog) {
char strbuf[ISC_STRERRORSIZE];
#if defined(ISC_PLATFORM_HAVETFO) && defined(TCP_FASTOPEN)
char on = 1;
#endif
REQUIRE(VALID_SOCKET(sock));
@@ -3349,6 +3352,17 @@ isc__socket_listen(isc_socket_t *sock, unsigned int backlog) {
return (ISC_R_UNEXPECTED);
}
#if defined(ISC_PLATFORM_HAVETFO) && defined(TCP_FASTOPEN)
if (setsockopt(sock->fd, IPPROTO_TCP, TCP_FASTOPEN,
&on, sizeof(on)) < 0) {
isc__strerror(errno, strbuf, sizeof(strbuf));
UNEXPECTED_ERROR(__FILE__, __LINE__,
"setsockopt(%d, TCP_FASTOPEN) failed with %s",
sock->fd, strbuf);
/* TCP_FASTOPEN is experimental so ignore failures */
}
#endif
socket_log(__LINE__, sock, NULL, TRACE,
isc_msgcat, ISC_MSGSET_SOCKET, ISC_MSG_BOUND, "listening");
sock->listener = 1;