# HG changeset patch
# User Sergey Kandaurov <pluknet@nginx.com>
# Date 1702650593 -14400
# Fri Dec 15 18:29:53 2023 +0400
# Node ID 9be627b7a3a35c00be13332f553e2d3b778877ae
# Parent cca722e447f8beaaa6b41a620c8b4239a5d1aa7d
Stream: the "accept_filter" parameter of the "listen" directive.

The FreeBSD accept filters support.

diff --git a/src/stream/ngx_stream.c b/src/stream/ngx_stream.c
--- a/src/stream/ngx_stream.c
+++ b/src/stream/ngx_stream.c
@@ -1021,6 +1021,10 @@ ngx_stream_add_listening(ngx_conf_t *cf,
ls->keepcnt = addr->opt.tcp_keepcnt;
#endif

+#if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
+ ls->accept_filter = addr->opt.accept_filter;
+#endif
+
#if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
ls->deferred_accept = addr->opt.deferred_accept;
#endif
diff --git a/src/stream/ngx_stream.h b/src/stream/ngx_stream.h
--- a/src/stream/ngx_stream.h
+++ b/src/stream/ngx_stream.h
@@ -70,6 +70,10 @@ typedef struct {
int tcp_keepintvl;
int tcp_keepcnt;
#endif
+
+#if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
+ char *accept_filter;
+#endif
} ngx_stream_listen_opt_t;


diff --git a/src/stream/ngx_stream_core_module.c b/src/stream/ngx_stream_core_module.c
--- a/src/stream/ngx_stream_core_module.c
+++ b/src/stream/ngx_stream_core_module.c
@@ -987,6 +987,20 @@ ngx_stream_core_listen(ngx_conf_t *cf, n
continue;
}

+ if (ngx_strncmp(value[i].data, "accept_filter=", 14) == 0) {
+#if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
+ lsopt.accept_filter = (char *) &value[i].data[14];
+ lsopt.set = 1;
+ lsopt.bind = 1;
+#else
+ ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+ "accept filters \"%V\" are not supported "
+ "on this platform, ignored",
+ &value[i]);
+#endif
+ continue;
+ }
+
if (ngx_strcmp(value[i].data, "deferred") == 0) {
#if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
lsopt.deferred_accept = 1;
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