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[nginx] Stream: the "accept_filter" parameter of the "listen" directive.

Sergey Kandaurov
March 22, 2024 07:20AM
details: https://hg.nginx.org/nginx/rev/c78790d3d061
branches:
changeset: 9222:c78790d3d061
user: Sergey Kandaurov <pluknet@nginx.com>
date: Fri Mar 22 14:53:19 2024 +0400
description:
Stream: the "accept_filter" parameter of the "listen" directive.

The FreeBSD accept filters support.

diffstat:

src/stream/ngx_stream.c | 4 ++++
src/stream/ngx_stream.h | 4 ++++
src/stream/ngx_stream_core_module.c | 20 ++++++++++++++++++++
3 files changed, 28 insertions(+), 0 deletions(-)

diffs (65 lines):

diff -r bed832296f5d -r c78790d3d061 src/stream/ngx_stream.c
--- a/src/stream/ngx_stream.c Fri Mar 22 14:53:19 2024 +0400
+++ b/src/stream/ngx_stream.c Fri Mar 22 14:53:19 2024 +0400
@@ -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 -r bed832296f5d -r c78790d3d061 src/stream/ngx_stream.h
--- a/src/stream/ngx_stream.h Fri Mar 22 14:53:19 2024 +0400
+++ b/src/stream/ngx_stream.h Fri Mar 22 14:53:19 2024 +0400
@@ -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 -r bed832296f5d -r c78790d3d061 src/stream/ngx_stream_core_module.c
--- a/src/stream/ngx_stream_core_module.c Fri Mar 22 14:53:19 2024 +0400
+++ b/src/stream/ngx_stream_core_module.c Fri Mar 22 14:53:19 2024 +0400
@@ -1015,6 +1015,20 @@ 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;
@@ -1186,6 +1200,12 @@ ngx_stream_core_listen(ngx_conf_t *cf, n
return "\"backlog\" parameter is incompatible with \"udp\"";
}

+#if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
+ if (lsopt.accept_filter) {
+ return "\"accept_filter\" parameter is incompatible with \"udp\"";
+ }
+#endif
+
#if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
if (lsopt.deferred_accept) {
return "\"deferred\" parameter is incompatible with \"udp\"";
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Subject Author Views Posted

[nginx] Stream: the "accept_filter" parameter of the "listen" directive.

Sergey Kandaurov 97 March 22, 2024 07:20AM



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